One of the most practical home additions to homeowners is the addition of a garage. A garage extension can enhance convenience and add more value to your house whether you need a secure spot to park your car, more storage space, or even a workshop. However, just how expensive is it to construct one?
The short answer: The average price of adding a garage is between $20,000 and $60,000, with some exceeding this range, based on the size, design, and location. We’ll break down the costs in an easy-to-understand way so you know what to expect before you start planning.
Average Cost of a Garage Addition
On average, homeowners spend:
One-car garage: $15,000-$30,000
Two-car garage: $25,000-$50,000
Three-car garage: $40,000-$70,000+
Adding a garage to a home can range between $50 and $100 per square foot; however, upscale fittings, residential living above the garage, or complicated designs may raise the cost as high as $150 per square foot or higher.
Garage Addition Cost by Size
One-Car Garage
An average garage includes a one-car garage that is approximately 240-300 square feet. This alternative is suitable in small lots or in homes where simple parking and storage are required.
Estimated cost:
$15,000-$30,000
Two-Car Garage
A two-car garage is the most popular choice usually ranging between 400-600 square feet. It has space to accommodate two cars and a little storage.
Estimated cost:
$25,000-$50,000
Three-Car Garage
In suburban and rural regions, three-car garages are popular if there is space for the size of it. These garages can be over 700 square feet and can have an additional storage or work area.
Estimated cost:
$40,000-$70,000 or more
Attached vs. Detached Garage Costs
Attached Garage
Attached garages are joined to your home, and this can be convenient, particularly when the climate is cold.
Pros:
- Easier access to the house
- Greater resale value
- Reduced utility expenses due to insulation
Cost range:
$20,000-$60,000
Detached Garage
Standalone detached garages are typically easier to install on a site with layout constraints.
Pros:
- More flexible placement
- Less building influence on your house
- Likely quieter when it is used as a workshop
Cost range:
$15,000-$50,000
Detached garages are usually slightly less expensive though the cost can increase due to the running of utilities such as electricity or plumbing.
Major Cost Factors to Consider
Foundation and Site Preparation
A concrete slab or foundation will be required in your garage. Prices will differ based on the state of soil, grading requirements, and the rate of labor in your area.
Estimated cost:
$3,000-$8,000
Hilliness or bad soil may raise this part of the budget.
Framing and Structure
This incorporates lumber, walls, roofing, and structural work.
Estimated cost:
$6,000-$15,000+
The price of wood may also vary which has the potential of influencing the total cost.
Roofing and Exterior Materials
Fitting your garage to the exterior of your house-siding, shingles, brick, or stucco will be more expensive but will enhance the look of your house.
Estimated cost:
$3,000-$10,000
Garage Doors and Windows
Garage doors can be simple manual doors or insulated automatic doors with smart capabilities and variations in between.
Estimated cost:
$800-$4,000+
Windows increase the natural light but raise labor and material expenses.
Electrical, Plumbing, and HVAC
Simple garages might only require lighting and sockets while more elaborate garages have plumbing or heating.
Estimated cost:
Electrical: $1,000-$3,000
Plumbing (if added): $1,500-$5,000
Heating or cooling: $1,000-$4,000
Permits, Zoning, and Local Regulations
Building permits and inspections will be required in most cities and countries.
Permit costs typically range from:
$500-$2,000
Zoning regulations can restrict the size, height, or location of garages, particularly in urban settings or in neighborhoods with HOAs. When designing, always make sure to check the local regulations.
Adding Living Space Above a Garage
When you are designing a garage that will have an apartment, office, or bonus room on the top, then expenses will be much higher.
Additional cost:
$15,000-$40,000+
Nevertheless, this alternative can be used to increase the usability of your area and offer long-term worth to your house, particularly in hot housing markets.
Regional Cost Differences
Where you live plays a big role in pricing:
Northeast and West Coast: Increased permit and labor expenses
Midwest and South: Construction is usually less expensive
Urban areas: More expensive because of zoning and labor charges
Rural areas: Reduced labor costs, but possible utility extension costs
Ways to Save Money on a Garage Addition
- Select a plain rectangular pattern
- Standard materials should be used rather than custom finishes
- Do not use plumbing when you do not need it
- Construct a separate garage as opposed to an attached garage
- Get multiple contractor quotes
- Smart planning can save thousands without sacrificing quality
Is a Garage Addition Worth the Cost?
In many cases, yes.
A garage addition can:
- Increase home resale value
- Improve daily convenience
- Add storage and workspace
- Shield vehicles from rough weather
Although it might not recuperate 100% of the cost right away, garages are extremely appealing to homebuyers and generally enhance marketability.
