Home additions cost per square foot


How Much Does a Home Addition Cost to Build? A Budgeting Guide (2022)

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Ready to add some space to your house? Home additions are a popular way to maximize an existing property by adding new rooms to the floor plan. You could build another bathroom, bedroom, living space, garage, or even an entire apartment. Each kind of room comes with its own complexity, so home addition costs have a wide range of prices: $20,835 to $72,552, or an average of $46,498. The total price depends on the kind of space you’re adding, the size, complexity, materials, and labor. Home additions make a great investment in your home, and you can often expect a significant return on your investment. If you’re committed to adding on to your house, but you’re wondering about home addition costs, then read on for the cost of home additions—and how to save money.

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Factors in Calculating Home Addition Cost

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Home additions typically cost more than a single-room remodel or renovation since there are more factors to consider, particularly if you’re adding more than a single room’s worth of space. If you add space on the ground floor, contractors will need to add a new foundation plus all the standard building materials from wood to shingles. While some additions can be a simple add-on to the back of the house, others are much more complex and require an architect to ensure the existing home doesn’t lose structural integrity. Knowing the location and style of addition you want to add will help guide the first steps of the budgeting process.

Size and Scope of the Home Addition

As is typical for any construction project, much of the cost is determined by the total size. The bigger the space, the higher the price. According to HomeAdvisor, home additions cost $80 to $200 per square foot. Adding a spare room is a common project, and the average cost ranges from $32,000 to $80,000 for a 20-foot by 20-foot room, with the higher end including more customization or luxury fixtures.

Labor and Permits

There’s no way around most labor costs on a large project like a home addition. They tend to make up 30 to 50 percent of the total price. You’ll be paying for skilled laborers like electricians, roofers, siding contractors, drywallers, and painters, depending on the type of space being built. Additionally, home additions are significant projects that require building permits from local authorities. Obtaining a permit will be the first step a general contractor takes to make sure the project can proceed as planned. Expect to pay between $400 and $1,850 for permits.

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Materials

The range of materials used for home construction is vast: concrete, wood framing, drywall, paint, electrical wiring, ductwork, roofing materials, plumbing, and more. Beyond these basic materials, include any customizations and accents like flooring, exposed beams, lighting, fixtures, windows, and doors into your budget. The cost to build a garage will also be different since you may need fewer common materials for an unfinished garage but then have to include a big-ticket item like an automatic garage door. Each material comes with an associated cost that is based on current market prices for the region.

Geographic Location

Home construction costs vary from state to state and city to city. Homes with the same square footage could have a valuation discrepancy of millions of dollars in some coastal urban areas compared to others cities farther inland. Home addition costs will be reflected by the home’s current valuation and the cost of labor and materials in the region. A booming construction market tends to push prices higher, too.

Building Up vs. Building Out

There are two directions you can build when adding onto a house: up or out. Building up tends to be less expensive and could be your only option on a smaller property. If you have an existing garage, building on top of it is more economical since the foundation is typically built to withstand more weight. Building out is often more expensive since a new foundation will need to be laid, and there may be structural issues to address to make sure the roofline and walls remain strong with the new addition. Talk with your contractor about which option works best for the property and budget.

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Site Preparation, Excavation, Demolition

No matter where you build the add-on, the contractor has to prepare the site for new construction. This could include demolishing part of the roof or house, landscaping, or concrete that’s already on the ground. It costs $1,276 to $5,024 to prepare a site for new construction.

Architectural Services

If you’re wondering, “How much does it cost to build a garage?” then be sure to also factor in an architect’s services. Adding a significant structure to your house should look intentional and match the current style and design to maximize ROI (return on investment) and curb appeal. For $2,020 to $8,400, an architect can draft an updated blueprint that includes all structural considerations and the aesthetics of the home addition. Permit approval will also require these blueprints.

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Contractor Services

Hiring a general contractor may seem daunting and expensive, but the peace of mind knowing they are capable of handling a complex project is worth it. General contractors usually cost $150 per hour, and their total cost can add up to approximately 10 to 30 percent of the final bill. General contractors will obtain permits, hire and coordinate subcontractors, purchase materials, and ensure the job proceeds on schedule.

Cleanup

Home additions generate quite a mess despite efforts to minimize the dirt and debris. As part of the construction process, the contractor should include time and effort for cleaning up the project. This should consist of hauling away any debris or extra materials and cleaning up dirt, dust, and debris from the floors, walls, counters, and windows. It usually costs $550 for a post-construction cleanup.

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Additional Costs and Considerations

Most of the additional costs for home additions are made up of essential materials. The difference in total price will be based on how much of each material is required for the size of the addition, as well as the quality of the material.

Foundation Materials and Installation

Adding a foundation for a home addition is a critical first step that can’t be skipped if building out. On average, the materials will cost $400 to $700 for 100 square feet, but the installation will cost $4,000 to $12,000. Much of these costs will be based on the size of the foundation. To find out how much it is to build a garage, talk with a garage contractor to find out if you’ll need to reinforce the concrete or build it thicker for your vehicles.

Roof Framing and Materials

A waterproof roof makes for a livable space that protects from the weather, so don’t skimp on these materials. Roof framing costs $700 to $900, and roof materials cost $500 to $5,000 for 100 square feet. You’ll want to use the same material as your existing roof, with the closest color match possible. Adding shingles will cost between $80 to $100 per square foot, but steel roofing costs between $75 and $350 per square (10 feet by 10 feet).

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Siding and Trim

Many homes use vinyl siding to complete their exterior with a uniform look, so if your house has siding, you’ll need to budget for adding siding to the new construction. Vinyl siding averages $4 per square foot, and the trim costs $2 to $5 per square foot.

Drywall Ceiling and Walls

While in some climates you could install an unfinished garage without drywall, every other home addition will require drywall to cover up the insulation and electrical wiring and create the dividing walls between other rooms. To drywall 100 square feet, expect to pay $400 to $600. It costs about $1 to $3 per square foot to install drywall on the ceiling and walls.

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Insulation

Any structure considered a habitable space (not a garage) is required to have insulation. The type and thickness requirements are based on local building codes that a contractor will know. It costs $2 per square foot to install insulation. Adding more or thicker insulation will cost more, and using blow-in insulation typically costs at least $2.88 per square foot.

Doors and Windows

Adding natural light is a common preference when adding to a house—but it comes at a cost. Windows are a fast way to increase the cost of an addition, whether by their size or number. At a minimum, it costs $235 to install a window, but you could spend up to $2,500 for a customized window. Doors typically cost $1,000 to install, but hollow interior doors are less expensive than heavy exterior doors or glass doors. In both cases, adding a heavy frame or molding will add cost as well.

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Electrical

Electrical wiring is essential for all home additions to make sure you have light and power for all those electronics. An electrician can wire the room to spec for a rate of $40 to $100 per hour. They’ll make sure the house is built to code to pass inspection when the construction is complete.

Flooring

Whether you’re considering the cost to add a bathroom or a bedroom, you’ll need to decide on the type of flooring you want to install. Linoleum and vinyl are the least expensive options, but you could also choose tile, carpet, or hardwood floors. The price ranges widely from $3 to $20 per square foot, so choose the option that fits your budget.

Plumbing

You might not need to install plumbing if you’re only adding on a bedroom or office; however, bathrooms, kitchens, and in-law apartments will need some plumbing installed to be fully functional. Plumbers typically charge $45 to $200 per hour to install plumbing and fixtures for a bathroom or kitchen.

HVAC

Adding an HVAC system (or extension from an existing system) is necessary for habitable spaces. A garage may not need heating and air conditioning, but a bedroom will. Expect to pay around $1,150 to install new ductwork and vents for an add-on, but that price will increase if you need to add a new zone to the system to accommodate a significant addition.

Landscaping

After the construction is done, you’ll need to turn your attention to the landscaping around the addition. Heavy equipment may have damaged more of the grass than expected, so consider replacing it with new sod to freshen up the space. Otherwise, factor in the cost to update the new area to match the existing landscaping with bushes, trees, or other features. Landscaping a new area could cost between $500 and $2,500.

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Home Addition Cost: Types of Home Additions

Choosing to add on to a house doesn’t have to be limited to a garage or bathroom. If your budget allows, you could expand the home’s footprint with functional and emotionally satisfying spaces ranging from bedrooms to sunrooms to family rooms. These less common options are completely doable and often solve the problem some homeowners have when they cannot find a new, larger house in their desired neighborhood. If you have the space, talk with a contractor about the associated costs of adding on any of the following types of additions.

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Room Addition

Most homeowners are looking to add an extra one or two rooms to their house. This can be done on the ground level or the second floor. Room addition costs mainly depend on the kind of room being installed.

Adding a Second Story

When a homeowner decides to add a second story, it’s usually to add more than a single room—adding just a single room on top of a house would look odd. Adding a second story costs $100 to $300 per square foot but could run up to $500 for complex jobs that require more shoring up of the original house. It’s common for second-floor additions to cost $150,000 to $200,000 for an additional 1,000 square feet of space.

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Home Extension Costs

In some cases, you may only need to do a home extension to get the extra space you need. These jobs range from garages and balconies to in-law suites and mudrooms.

Attic Conversion

Converting an open attic to a usable living area costs about as much as adding a new room, mostly to make sure there’s proper insulation, ventilation, light, and egress options. You can expect to pay between $40,000 and $50,000 for attic addition or conversion—they’re basically the same thing.

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Benefits of a Home Addition

It’s a toss-up to decide where to spend your hard-earned money sometimes. If buying a new house isn’t an option, but you need extra space, then doing a home addition is a great solution. Home addition costs are well spent when improving and expanding a home. Here are several popular reasons to add to your home that will get you excited for this project.

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More Space

This is likely the number one reason homeowners spend money on home additions. More space is a considerable benefit for growing families, holding large gatherings, or adding storage or living space. Adding only a few feet of space to a cramped bedroom can help couples regain their own space. Expanded living rooms offer more room for families and friends to gather for important events. More space allows for you to adhere to your lifestyle values.

Added Property Value

Many household construction projects increase your property value—the question is by how much. No project offers a dollar-for-dollar return, which is why it’s wise to avoid extravagant upgrades that won’t make a significant difference. However, some projects can boost your property value. A master suite addition returns 63 percent, a bathroom returns 53 percent, and a second-floor addition returns 65 percent. You could speak with a real estate agent or home appraiser to get an idea about which additions and features will best help your property value.

Added Luxury

If your bathroom is as small and basic as it gets, bumping out your bathroom could be a huge benefit that adds spacious luxury to an intimate area. Having a little extra room to take care of your personal needs is fast becoming necessary to appeal to future home buyers. Additionally, expanding a kitchen to add more appliances or counter space is another way to make a common living area appear more luxurious.

More Storage

Building a garage offers two immediate benefits: protection for your vehicles and extra storage space. If you already have a garage but still need extra storage space, bumping out a larger area for a laundry room and mudroom could be a perfect idea. With built-in cabinets and closets, you’ll have plenty of space to store outdoor items or seasonal clothing and bedding.

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Moving Alternative

Almost every homeowner dreads the moving process simply because of the tremendous hassle of packing, moving, and then unpacking your life’s possessions. There’s also the possibility that you cannot find a house that suits your needs in the area you specifically want to raise your family. Choosing to build an addition on your home solves all of those problems—if you have space—and it’s usually cheaper than buying a new house.

Home Addition Cost: DIY vs. Hiring a Professional

Home additions aren’t much easier than building a home in the sense that each part of the complex construction process is involved—just on a smaller scale. Since home addition costs can quickly become overwhelming, it can be tempting to wonder if you can do at least some of the work on your own. You could safely tackle some DIY tasks, such as removing existing landscaping to prepare the site, doing some demolition on non-structural features, painting the finished room, or installing new landscaping. However, unless you’re skilled at other tasks like plumbing, framing, roofing, or installing drywall, a general contractor should handle the project.

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Home construction projects involve many moving parts to get the job done right and on time. From obtaining permits to scheduling contractors to ensuring materials are up to spec, the money spent on a contractor is worth it. Reputable contractors are licensed and insured to ensure you’re not liable for any accidents that could occur, saving you the potential embarrassment of calling your homeowners insurance company to explain an error you made that will now cost more to repair. You’ll also appreciate that general contractors can obtain some materials and fixtures that aren’t available to the public, so be sure to ask them about any items they may already have on hand or what they could recommend for your project. They’ll help guide your planning and building decisions as you begin this exciting process.

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How to Save Money on Home Addition Cost

Home addition costs quickly jump from affordable to expensive. Since spending more money on a home addition doesn’t guarantee an equal return on your investment, you’ll want to make sure you spend only what needs to be spent. Once you’ve got an idea of your budget and what kind of addition you need, use these suggestions to save money on your home addition cost.

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Questions to Ask About Home Addition Cost

It’s easy to get overwhelmed by the process of planning and executing a home addition. You’ll need to find a contractor you trust, who is reliable, and who will achieve your vision with ease. Use any of the following questions when talking to a licensed, insured, and bonded general contractor to help make the process easier and avoid miscommunication.

FAQs

The options are nearly endless when building a home addition, but choosing a general contractor and laying out a specific plan for your project will get you started on the right foot. As you begin finalizing your decisions, consider these answers to some frequently asked questions.

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Q. How much does a mobile home addition cost?

It’s entirely dependent on the kind of addition. A metal carport costs $2,300 to $4,850, but a porch could cost $4,600 to $22,000. These additions will not be structurally attached to a mobile home to avoid straining the structure.

Q. Does a Cape Cod addition cost more than other home styles?

It might. Cape Cod additions are a unique and stylish way to add space to your house, and with that style often comes extra costs. Speak with a local contractor near you to find out the most cost-effective way to build this style of home addition.

Q. Do I need to hire an architect for additions?

An architect is a must if you’re looking at an extensive addition that alters walls, redesigns room flow, or affects any other major structural changes to the roof or foundation. An architect’s expertise will ensure the addition is structurally sound and meets building code requirements. Suppose you’re doing a simpler addition like a bump-out or single room addition. In that case, you may not need an architect if the general contractor is experienced at updating blueprints and meeting zoning codes.

Sources: HomeAdvisor, Fixr, Thumbtack, HomeGuide

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2022 Home Addition Costs | Cost To Add A Room Per Square Foot

Average Cost To Build An Addition

The average cost to build a home addition or add a room is $48,000, with most homeowners spending between $22,500 and $74,000. A room addition costs from $86 to $208 per square foot depending on the room size, materials, labor, location, and if your building-up or out.

Adding a room provides a return on investment of over 50%. To get started, get free estimates from home addition contractors near you.

Home Addition Cost
National Average Cost $48,000
Minimum Cost $7,000
Maximum Cost $155,000
Average Range $22,500 to $74,000

Table of Contents

  1. Average Cost To Build An Addition
  2. Home Addition Cost
  • Room Addition Cost
  • Cost To Add A Second Story
  • Home Extension Costs
  • Cost Factors To Expand House
  • Planning Your House Addition
  • Tips For Hiring A Contractor
  • Home Addition Contractors Near Me
  • Home Addition Cost

    There are many options to choose from when planning to add extra space to your home. You can add a bathroom, master bedroom suite, build an in-law apartment, build a detached garage, family room, or add a second floor.

    Building an addition increases the square footage, which adds value to a home. Each type of addition project has estimated prices primarily based on the size that we'll cover below.

    Home Addition Cost Per Square Foot

    A home addition costs between $86 and $208 per square foot, with most spending $128 per square foot on average. The final cost depends on if your building-up or building-out, labor costs, and the quality of materials used.

    Home Addition Cost Per Square Foot
    Quality Cost Per Square Foot
    Basic $86
    Average $128
    Luxury $208

    On average, the addition consists of a basic room with necessary electrical wiring and little to no plumbing. Features such as bedrooms and bathrooms with luxury fixtures start raising that square footage price. Every door, window, and wall adds to the price. The more luxurious the design of the addition, like a chef’s gourmet kitchen with smart appliances and heavier electrical needs, the higher the price—at $400 per square foot or higher.

    Home Addition Cost Calculator

    Calculating by square footage is quite accurate when trying to assess the final cost of an addition. An average 300 square foot addition costs $25,800 to $62,400 while a 400 square foot addition runs $34,400 to $83,200. Costs below are figured at $86 and $208 per square foot to show the most basic cost to the highest.

    Home Addition Cost Estimator
    Square Feet Average Cost
    200 $17,200 – $41,600
    250 $21,500 – $52,000
    300 $25,800 – $62,400
    400 $34,400 – $83,200
    500 $43,000 – $104,000
    600 $51,600 – $124,800
    800 $68,800 – $166,400
    1,000 $86,000 – $208,000

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    Room Addition Cost

    At $128 per square foot, a 10x20 bedroom addition costs $25,600 on average, while a 20x20 family room ranges from $51,200. When adding a bathroom that requires plumbing, expect to spend from $18,000 to $47,000.

    Room Addition Cost
    Room Size Average Cost
    10x10 $8,600 – $15,500
    10x20 $17,200 – $31,600
    12x12 $12,400 – $22,300
    16x16 $22,100 – $39,700
    20x20 $34,400 – $62,200

    There are many ways to increase your square footage. You can build up by adding a second floor, or you can build out and add a room by adding a section of house that attaches through an opening in an outside wall. You can also convert one kind of room to another kind of room better suited to meet your needs. You can build a detached garage or workshop. All options qualify as a house addition.

    When considering a significant room addition, be sure to consult with an architect to draft the design and style you're looking for. Next, hire a structural engineer to make sure the addition plans are sound before construction. Finally, hire a general contractor who will coordinate all the development and building in the correct order.

    Adding A Room To A House

    It’s impossible to figure the exact cost of adding a room to a house until you know the size of the room and every aspect of what’s built into it. The cost of labor in the area where you live will also impact the price. The following examples reflect the general cost of the project.

    Room Addition Cost Calculator
    Room Average Cost
    Bedroom $10,300 – $24,900
    Master Bedroom Suite $59,400 – $96,500
    Bathroom $18,000 – $47,000
    Sunroom $8,100 – $30,000
    Family Room $34,400 – $83,200
    Kitchen $25,100 – $43,400
    Second Story $100,000 – $350,000

    Cost To Add A Bedroom

    The cost to add a bedroom is $100 to $155 per square foot, or about $10,300 to $24,900 on average. A small 12x12 bedroom (144-square-feet) with a foundation and a roof will cost in the neighborhood of $12,400 to $22,300 if you choose to add it to the side of the house.

    Variables would include how many outlets are installed, the type and amount of lighting, the type of roof that matches the existing house, and the flooring. Other options that affect the bedroom addition cost are the size of the closet, the type of doors on the closet, and the size and number of windows and window seats.

    Master Bedroom Addition Cost

    The cost of a 464-square-foot master bedroom suite addition including a master bathroom costs between $59,400 and $96,500 or more. This custom-built project includes a 289 sqft. bedroom, a 50 sqft. closet, and 125 sqft. bathroom. A luxury master bedroom with a spa-like bathroom will cost $100,000 and up.

    A master bedroom is usually bigger, from 200 to 350 square feet. It has a walk-in closet that can be anywhere from 25 to 100 square feet in size with its own private master bathroom, which can range in size from 108 to 156 square feet. In luxury homes, the master suite can be quite a bit larger.

    Lately, the trend in luxury homes is to have a master suite, which is like a small apartment on its own. It can include a sitting room, an exercise room, or even a swim spa. Many times the walk-in closet will host its own washer and dryer, and the sitting room may have a tiny kitchenette. Add a set of French doors or a deck or balcony, and the costs rise, but so does the luxury.

    Bathroom Addition Cost

    A bathroom addition costs from $18,000 to $47,000 when building out versus remodeling an existing space. A spa-like mast bathroom can cost $80,000 or more. The National Association of Realtors report says your investment will yield a 50% return of costs when the time comes to sell, but a bonus is that buyers are quicker to buy a house with the same number of bathrooms as bedrooms. In general, adding a bathroom is one of the more expensive home additions due to the amount of plumbing in such a small space.

    Sunroom Addition Cost

    A sunroom addition costs $8,000 to $80,000 with most homeowners spending around $100 to $350 per square foot on average for materials, slab, and professional assembly. Smaller sunrooms in high wind or snow load climates cost more than larger units built in mild climates.

    Prices depend if it's a three-season or four-season sunroom, the size, and if it's custom built. Custom designed and engineered sunrooms cost between $300 and $400 per square foot. Most prefabricated sunroom kits are built offsite and then delivered to your home, but you’ll need to:

    1. Pour a 6” slab foundation at about $6.50/square foot.
    2. Have an electrician add power, air, and heat to the sunroom’s rough-ins at $40–$100/hour. (HVAC $2.51/LF, Electric Service $9.77/LF)
    3. Get building permits for $100–$300.
    4. Match roofing materials
    5. Add flooring at $2–$8 per square foot.
    Cost of 4 Season Room Addition

    Adding a 4-season sunroom or solarium costs $180 to $250 per square foot or about 20% more than a three-season room. Costs vary with the wind load and snow load required. Choose from a four-season room, by adding a heating and cooling system to the three-season room, or a solarium, by enclosing the patio with a glass roof and panels.

    Since sunrooms are mostly comprised of glass, they can be built to match the aesthetic of any home décor. Save on your cost to build a sunroom addition by putting in a window AC unit and a plug-in heater rather than extending the HVAC ducting into the new sunroom.

    Family Room Addition Cost

    The addition of a 400-square-foot family room costs between $34,400 and $83,200, or about $86 to $200 per square foot. The family room addition cost covers the new foundation and roofing, all outside walls with siding and insulation, and all electrical work (and plumbing is extra if a new bathroom comes with the family room). Heating and AC ductwork is installed and connected to the furnace. Flooring, windows, and lighting fixtures are all included in that price.

    Kitchen Addition Cost

    A kitchen addition costs between $25,100 to $43,400 on average, while an upscale kitchen can cost $100,000 or more. The lower price describes a standard 10x10 kitchen with fixtures that are low- to mid-range. The upper price encompasses higher-priced appliances and larger square footage. When you move into the area of gourmet kitchens, the increase in cost is mostly on high-end appliances, countertops, and fixtures.

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    Cost To Add A Second Story

    The average cost to add a second story is $100 to $300 per square foot. Building a second story addition with multiple rooms costs $100,000 to $350,000, depending on the size, complexity, and quality of materials.

    You’re essentially building an entirly new house on top of your existing home without the cost of a foundation. All the plumbing will have to be brought up to the second floor, as well as the electrical wiring. Framing and drywall must be installed to create rooms, and all walls and ceilings painted.

    Building a second story over a garage costs more if the garage is detached and the existing foundation isn’t of a high enough quality to support a second floor.

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    Home Extension Costs

    Home Extension Cost
    Room Average Cost
    Garage $14,100 – $42,300
    In-Law Suite $78,000 – $135,000
    Front Porch $2,900 – $20,000
    Bump-Out $5,000 – $30,000
    Mudroom $7,500 – $25,000
    Cantilever $10,000 – $30,000
    Balcony $3,000 – $10,000
    Dormer $2,000 – $25,000
    Greenhouse $500 – $6,000
    Entryway $700 – $1,200
    Basement $24,000 – $46,000

    Garage Addition Cost

    The cost to build a 2-car garage is about $23,900 or about $49 per square foot. The cost to add on a 1-car garage is about $10,800, while a 3-car garage can be added on to your home for between $28,200 to $42,700.

    This basic garage addition cost includes no high-end customizations. It’s merely a place to park your cars. Generally, the larger the square footage, the less it will cost, in the case of building a garage. The price depends on the cost of local materials and labor, and you’ll want to match the color and type of roofing and siding materials. A garage addition can recoup about 80% of the cost in relation to the home’s increased equity.

    Building an attached garage is cheaper, but if you want to construct a detached garage, expect to pay $3,000 to $5,000 more. Also, check with local building codes and HOA rules to make sure you’re allowed to build a detached garage on your lot.

    1. 1-car detached garage $13,200
    2. 2-car detached garage $24,200

    In-Law Suite Addition Costs

    The average cost of an in-law suite addition is $90,000, with most spending between $78,000 and $135,000 for a 600–750 square foot dwelling. An in-law suite includes one bedroom and one bathroom, a kitchenette, laundry room, living room, and perhaps some storage on the back porch. It is a good investment in the value of your home, and if your guests visit occasionally, it can be rented out per night. When it comes to selling your home, this is a great listing item.

    Front Porch Addition Cost

    At an average of $45 per square foot, a small front porch addition costs about $2,900 while a porch running the full width of your home ranges from $15,000 to $20,000. Adding a screened-in porch will cost between $18,000 and $24,000. The final price depends on the size and complexity of the porch. Any porch option you decide to go with will add curb appeal and have a good return of 30%–60% on your investment.

    Adding a Modular Addition to Existing Home

    Adding a modular addition to an existing home costs $90 per square foot before the additional cost of site prep, excavation, and a poured foundation. Modular addition pricing for adding a second floor to your home with a modular home (rather than a stick-built buildup) is about $98,000.

    This is for a master bedroom suite and two other bedrooms with an open area to the house below. It is comparable to stick-built costs, but the length of time your home is under construction will be shorter since the modular is built offsite and shipped to you.

    Bump-Out Addition Cost

    A kitchen bump-out addition costs $5,000 to $30,000. Bumping out two feet along one side of the kitchen is more cost-effective than adding on an entire room to get a bigger kitchen, although you can add up to 15 feet in a bump out if you add footings or more foundation.

    If one side of your kitchen is ten feet long, bumping it out two feet will give you an extra twenty square feet without needing to add support posts (cantilevered). Two feet may not seem like much, but it is enough room to allow you to add an island or a breakfast nook, and you don’t have to pay more for additional HVAC ducts or wiring. You also don’t need to extend roofing, as most bump outs are roofed like a carport—with a flat-roofed section.

    Mudroom Addition Cost

    The cost of adding a mudroom to your home is about $7,500 to $25,000. Build a 50-square foot mudroom for about $7,500 or a 100-square foot mudroom with a bathroom and shower for about $15,000.

    Add a mudroom as a place to:

    Cantilever Addition Cost

    The cost of a two-foot cantilever addition is about $17,000. A cantilever is a micro-addition bump-out that juts out from your house without the benefit of a foundation. It’s a cost-effective way to add up to two feet of width to your room. A cantilever is achieved by sistering new joists to the old joists. The new joists will jut out from the edge of the house, giving you a foundation, of sorts, to build your bump out on. The length they jut out depends upon the depth of the joist.

    This formula allows for the safe execution of the bump out, being sure it will support itself and any humans who might sit in that spot. Check your local building codes for the proper formula for your area.

    Balcony Addition Cost

    The cost of adding an outdoor balcony is $15 to $35 per square foot for wood or $3,600 for a small steel balcony. Posts must be anchored securely. It’s an economical way to increase your living space without having to build a foundation or a roof, and a lovely way to enjoy the sunset or the breeze during hot summer days.

    Dormer Addition Cost

    On average, it costs $2,000 to $7,000 for a small dormer and about $25,000 for a large one. Add more light, ventilation, space, views, and a possible emergency exit. Add in when your roof is replaced to save on costs. The steeper your existing roof, the lower the price of the dormer.

    Conservatory Addition Cost

    Adding a conservatory costs $200 to $600 per square foot, with most homeowners spending $50,000 to $150,000. Usually used as a sunroom or greenhouse and built with a wood or aluminum frame, it’s a four-season room with roofing, wiring, foam sealing, double-paned windows, HVAC, fireproofing, and a protective coating. It will cost more to install if you live in a high-wind or snow-load climate.

    Additional Home Expansion Costs

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    Cost Factors To Expand House

    Many factors can increase the price of any home remodeling project by thousands of dollars. For example, the need for a new plumbing system, pouring a reinforced concrete slab, or landscaping around the new addition will add to your final cost.

    The following construction costs to expand your house are based on adding a 278-square-foot bedroom or bathroom to your home.

    Cost To Expand House
    Construction Average Cost
    Site Work $1,660
    Foundation $2,675
    Framing $4,285
    Exterior Finishes $3,500
    Major Systems $3,410
    Interior Finishes $7,080
    Final Steps $1,730

    Cost Factors

    Should You Add On or Build Up?

    Many people assume that it might be cheaper to build up to avoid laying a new foundation. Building up can cost a little less at $100 to $150 per square foot, but not always. Foundations are built to withstand a specific load, and building another story may require beefing up the foundation as well as the existing walls.

    Permits and Restrictions

    Room addition permits cost $200 to $600 on average. Permits ensure that your addition will not go over the allowed impervious cover percentage on your lot, and inspections ensure the drainage around your home is functional, electrical and plumbing work is done to code, and you don’t break any rules on the height of your house and fence.

    When it comes to dealing with getting permits for a house addition, having a contractor is a godsend. Some permit approval has been known to hold things up by up to six or even twelve months, whereas a contractor can get the job done faster.

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    Planning Your House Addition

    Creating home addition plans is a major project and as such, will require the use of a general contractor—unless you are experienced in all phases of construction and like to have a weekend project that will last for months.

    A good general contractor will know which permits to obtain, and they will have subcontractors ready to work on the various parts of your addition. Things like electrical work, plumbing, and HVAC will need to be subcontracted. They may even subcontract the painting, roof, and concrete foundation work. A contractor will also be able to give input on your home addition ideas.

    Home Addition Plans

    Home addition plans and blueprints cost $1,000 to $3,000. You’ll need to have a plan, so everyone on the building crew knows what their job entails.

    Are Architects Needed for Additions?

    Hiring an architect is the best idea to be sure the addition flows seamlessly into your existing home. While no building code says an architect must be hired, it’s good to hire one at the beginning of the project. An architect is trained in design and engineering.

    Architects know how to solve problems with the design, flow, integration, the complication of roof lines, and making your existing home look like the addition has been there all along. If your architect isn’t good, your contractor will charge more because of the shoddy work and communication. A good architect, on the other hand, can help increase your home’s value with their designs.

    Will the Addition Add Value to Your Home?

    The majority of additions add value and offer a 50% return on investment. Some types of home renovations will have a better return on investment than others. Generally,

    Your home should still fit into the context of the neighborhood. If you live in an area with all one-story homes, adding a second floor to your home may not realize a good return. If you decide to sell your home, you need to keep the comparable prices of the surrounding area in mind. No matter how nice the addition to your home is, if it’s priced far above similar homes, you won’t see as great of a return on investment.

    Some things we do to our homes are just for us, with no thought for resale value, and that’s okay—our homes should be exactly the way we want them.

    Agree on Price and Payment Schedules

    Before you begin any home addition, you must have a good understanding with your general contractor. Everything should be put down in writing with detailed line-by-line costs, and both parties should fully agree to the terms.

    It’s a normal thing to put a down-payment on a construction project and then to make payments along the way. Your contract with your general contractor will spell out when those payments are due, such as after framing is completed or three months into the project.

    Keep in mind that unexpected costs will come up. It’s impossible to know what’s behind the walls or under the floor until those spaces are opened up and exposed to the light of day. There should be a contingency amount of money built into your contract, but even that could be exceeded.

    How Can You Save Money?

    There are many ways to save money on a home addition project. Even if you’re not a handy, DIY kind of person, you can do things like preparing the site, clean up, haul away, or deliver to save on remodeling costs.

    You can also save money by doing finish work like painting or sanding baseboards.

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    Tips For Hiring A Home Addition Contractor

    You always want to hire the best contractors you can afford. This is your home they are working on, and you want it to be safe and right. Some things to keep in mind when hiring a contractor are,

    Get free estimates on HomeGuide from trusted home addition contractors:

    Get free estimates

    References


    References

    21 Homeowners' Project Costs on HomeGuide. HomeGuide.com.

    Pray, R. (2019) Craftsman National Construction Estimator. Craftsman Book Company

    Pray, R. (2019) Craftsman Home Improvement Estimator. Craftsman Book Company

    Pray, R. (2019) Craftsman Repair and Remodeling Estimator. Craftsman Book Company

    2019 Crown Molding Costs | Per Foot Prices & Cost To Install. https://homeguide.com/costs/crown-molding-cost

    Prices for extensions to a house

    Prices for extensions to a house

    The Doma iz Brusa company offers services for the construction of extensions to the house. Here you can order an extension to the house: porches, vestibules, terraces, verandas, rooms.

    Cost of an extension to the house per m 2 work + material
    Porch 15 000 ₽ per m 2
    Open terrace 15 000 ₽ per m 2
    Closed insulated porch 25 000 ₽ per m 2
    Vestibule (or room extension) 25 000 ₽ per m 2

    Prices for extensions of standard dimensions work + material
    Size, m Open annex (terrace, porch) Closed annex (veranda, vestibule, room)
    1. 5x5 112 500 ₽ 187 500 ₽
    1.5x6 135 000 ₽ 225 000 ₽
    1.5x7 157 500 ₽ 262 500 ₽
    1.5x8 180 000 ₽ 300 000 ₽
    2x4 120 000 ₽ 200 000 ₽
    2x5 150 000 ₽ 250 000 ₽
    2x6 180 000 ₽ 300 000 ₽
    2x7 210 000 ₽ 350 000 ₽
    2x8 240 000 ₽ 400 000 ₽
    2x9 270 000 ₽ 450 000 ₽
    2x10 300 000 ₽ 500 000 ₽
    2. 5x5 187 500 ₽ 312 500 ₽
    2.5x6 225 000 ₽ 375 000 ₽
    2.5x7 262 500 ₽ 437 500 ₽
    2.5x8 300 000 ₽ 500 000 ₽
    2.5x9 337 500 ₽ 562 500 ₽
    2.5x10 375 000 ₽ 625 000 ₽
    3x3 135 000 ₽ 225 000 ₽
    3x4 180 000 ₽ 300 000 ₽
    3x5 225 000 ₽ 375 000 ₽
    3x6 270 000 ₽ 450 000 ₽
    3x7 315 000 ₽ 525 000 ₽
    3x8 360 000 ₽ 600 000 ₽
    3x9 405 000 ₽ 675 000 ₽
    3x10 450 000 ₽ 750 000 ₽
    4x4 240 000 ₽ 400 000 ₽
    4x5 300 000 ₽ 500 000 ₽
    4x6 360 000 ₽ 600 000 ₽
    4x7 420 000 ₽ 700 000 ₽
    4x8 480 000 ₽ 800 000 ₽
    4x9 540 000 ₽ 900 000 ₽
    4x10 600 000 ₽ 1 000 000 ₽

    What is included in the price of the outdoor terrace?
    Base double piping
    Legs board 40x150 mm (pitch 580 mm)
    Finished floor terrace board
    Support posts timber 150x150 mm
    Terrace railing wooden balusters and handrail
    Rafter system board 40x150 mm (pitch 580 mm)
    Sheathing edged board 20-25 mm (pitch no more than 350 mm)
    Roof ondulin / galvanized corrugated sheet / metal tile (customer's choice)
    Waterproofing under roof
    Ceiling trim timber imitation
    Counter rail +
    Antiseptic +
    Moisture content of frame wood and finishing materials forced drying
    Height inside terrace from 2 to 3. 5 m (depending on the configuration of the house and the wishes of the customer)
    Assembly +
    Warranty 3 years

    What is included in the price of a closed extension (veranda, room, vestibule)?
    Base double piping
    Legs board 40x150 mm (pitch 580 mm)
    Subfloor edged board 20-25 mm
    Finished floor Quick Deck 22 mm
    Racks (outer walls) board 40x150 mm (pitch 580 mm)
    Stabilizers (external walls) board 40x150 mm
    Rafter system board 40x150 mm (pitch 580 mm)
    Sheathing edged board 20-25 mm (pitch no more than 350 mm)
    Roof ondulin / galvanized corrugated sheet / metal tile (customer's choice)
    Exterior finish imitation timber
    Entrance door metal
    Windows PVC two-chamber with fittings, cashing
    Window sills and flashings +
    Interior finishes (walls and ceilings) lining
    Corners inside extension wooden plinth
    Insulation floor, exterior walls, ceiling: 150 mm
    Waterproofing (windproofing) floor, exterior walls, roof
    Counter rail +
    Vapor barrier floor, walls, ceiling
    Antiseptic +
    Moisture content of frame wood and finishing materials forced drying
    Height inside extension 2. 2 - 2.8 m (depending on the configuration of the house and the wishes of the customer)
    Assembly +
    Warranty 3 years

    Additional works and services
    Support-column foundation on cement blocks 200x200x400 mm (one point consists of 4 cement blocks) 3 500 ₽ per point
    Tape shallow foundation 200x600 mm (economy) 7 000 ₽ per m
    Shallow foundation strip 300x700 mm (standard) 7 500 ₽ per m
    Screw pile foundation (all included) 5 000 ₽ for pile
    Reinforced concrete pile foundation (all included) 6 000 ₽ for pile
    Additional baffle 12 150 ₽ per m
    Exterior wall painting (price per coat, customer material) 300 ₽ per m 2
    Replacing lining with imitation timber 900 ₽ per m 2
    Replacing lining with block house 1 100 ₽ per m 2
    Additional double-glazed window 1200x1400 mm
    (included: fittings, window sill, drip)
    14 800 ₽
    Additional paneled door 800x2000 mm 7 500 ₽
    Additional metal door 800x2000 mm 22 000 ₽
    Additional insulation with boards (50 mm) 550 ₽ per m 2
    PVC gutter system 2 100 ₽ per m
    Metal gutter system 3 750 ₽ per m
    Snow retention system 2 400 ₽ per m

    List of regions where we operate

    Moscow region, Leningrad region, Belgorod region, Bryansk region, Vladimir region, Vologda region, Voronezh region, Ivanovo region, Kaluga region, Kostroma region, Kursk region, Lipetsk region, Nizhny Novgorod region, Novgorod region, Oryol region, Pskov region region, Republic of Karelia, Ryazan region, Smolensk region, Tambov region, Tver region, Tula region, Yaroslavl region.

    Prices for works and services of the company "Three Builders"

    The prices separately for each project are calculated by our specialists today. The price per square meter can vary significantly, since a lot depends on the type of roofing (gable, broken, hipped, with hips and without), the type of roofing material (ondulin, metal, flexible or natural tiles), the number of storeys of the building, the number of partitions, windows and doors, wall thickness, selected foundation, building assembly option and much more.

    Construction prices:
    Prices for timber houses. Building from a bar is the most economical option. The disadvantage is that you cannot immediately enter such a house. We need to wait for the shrinkage of the structure. The cost of a log house from 5800 rubles/m2
    Prices for frame-panel houses. The construction of a frame-panel house is an ideal option for giving. Also, a country house can be understaffed to a full-fledged winter version. After construction, you can immediately move in. The cost of a panel house from 5800 rubles / m2
    Prices for frame houses. Construction of a frame house is practical, beautiful, warm. The cost of the thermal circuit from 8500 rubles / m2
    Prices for aerated concrete cottages. Building an aerated concrete house is the most expensive option, but also the most durable. Cost of a box from 11,500 rubles/m2
    Prices for strip foundation. The foundation tape is a classic version of the foundation of the house. The cost of the tape is from 3500 rubles / linear meter.
    Prices for a monolithic foundation. Slab - suitable for any soil, but at the price of the most expensive foundation option. The cost of the plate is from 3500 rubles/m2
    Prices for pile foundation. The pile-screw foundation is the most economical option. Approximately 2/3 of modern houses are placed on piles. The cost of the foundation from 3500 rubles / pile
    Extensions to the house. Often, a terrace or veranda is required to be attached to an existing building. We are doing this work. Cost of extension from 6500 rub/m2

    About Three Builders

    We are a regional company
    with large area coverage,
    we carry out delivery and construction
    in 27 regions of the Russian Federation.

    600

    objects, from houses and baths from
    beams to frame and aerated concrete houses.
    Each project has
    photo and video report


    quality raw materials
    during construction

    All materials are purchased
    in the market are harvested
    in production, prices below
    than competitors

    All workers have
    construction experience from 5 years
    and each brigade has an experienced foreman

    Spring-summer 2022 houses and bathhouses

    August 31, 2022

    Rented houses and bathhouses for winter 2021-2022

    April 07, 2022 Happy New Year

    28 Dec 2021

    Completed houses and baths July - October 2021

    18 Nov 2021

    Completed objects April - June 2021

    July 23, 2021

    Videos and photos of new built houses October 2020 - March 2021

    April 16, 2021

    Updating the corporate website of the company "Three Builders"

    Decum 2000

    Built buildings of July -2020

    05 Oct 2020

    Commissioned buildings May-June 2020

    15 Jul 2020

    Completed facilities in spring 2020

    22 May 2020

    New facilities in winter 2019-20010

    02 Mar 2020

    New rented houses in the fall of 2019

    29 29 2019

    Built houses in the summer of 2019

    25 Aug 2019

    rented houses in the winter 2018 - spring 2019

    08 2019

    We work 7 days 7 days per week

    11 Mar 2019

    All news

    +7 800 555 79 30

    call

    Our specialists will gladly answer all your questions. Leave a request and we will call you back.

    Completed projects

    Read all

    Tiunova D.V.

    Shenberger N.V.

    Nefedov A.S.

    Novokshenova L.E.

    Baranov O.V.

    Berketova T.I.

    Petrov D.E.

    Sabonis S.S.

    Bulychev M.N.

    Kabanova N.Yu.

    Sabonis S.


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