A garage extension is a great way to add space for work, hobbies, and storage. Learn how much a garage extension costs so you can budget accordingly.
Cost to Build a Garage in Houston
The cost to build a garage in Houston, Texas is $23,143 on average, but ranges between $8,912 and $38,391 depending on its size.


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The average cost to build a garage in Houston is $23,143, and most residents pay between $8,912 and $38,391. Costs vary mostly based on the size and type of garage you build, with detached garages costing more and larger garages driving up costs based on the square footage. The total in Houston is lower than in most cities, in part because the local cost of living is low compared to the national average.
Garage Building Cost Factors
Some homeowners in Houston, Texas, pay as little as $300 to build a garage, but prices can climb as high as $61,000 for larger detached garages. In addition to size and garage type, the finishing materials you choose, permit costs, and labor costs will all affect your total.
Size
You'll pay an average of $39 per square foot between labor and materials when working with a professional. However, you'll find prices as low as $24 per square foot for simple, attached garages and up to $94 per square foot for detached, high-end garages with all the bells and whistles.
The table below includes some standard pricing for garage builds based on square footage. The average garage size in Houston is 24 feet by 24 feet, which is the standard for a two-car garage. Going smaller will reduce costs but also space, and going larger will cost more and may yield a lower return on investment (ROI) since bigger garages aren’t as common.
| Garage Size (Sq. Ft.) | Average Cost |
|---|---|
| 12x20 | $5,650–$22,650 |
| 18x20 | $8,450–$33,950 |
| 20x20 | $9,400–$37,700 |
| 20x22 | $10,350–$41,450 |
| 22x22 | $11,350–$45,650 |
| 32x22 | $16,550–$66,350 |
| 32x34 | $18,050–$72,400 |
Materials
The materials you choose for your garage build will have a major impact on your costs. You can go with budget-friendly materials to keep costs down, and you don’t have to worry as much about choosing high-end materials that will keep the interior cool during the long, hot Houston summers or stand up to the occasional tornadoes and supercell thunderstorms.
However, most homeowners match their garage to their existing home, which means the exterior materials common for home construction in Houston are also common for garages. Metal roofs that can reflect sunlight and reduce solar heat gain are popular, as are clay tile roofs that add insulation against the intense heat. These are both more costly than asphalt shingle roofs. Stucco and brick siding are also common for their insulative value, and these are generally more expensive than vinyl siding.
In the tables below, we’ll include some popular exterior building materials in Houston, along with pricing, to give you an idea of how materials can affect your total.
Roofing Materials Cost:
| Roofing Material | Cost per Sq. Ft. | Pros | Cons |
|---|---|---|---|
| Asphalt shingles | $1–$4 | Most affordable | Durability/lifespan |
| Clay tile | $3–$13 | Adds insulation | Impact resistance |
| Metal | $4–$16 | Reflects sunlight | Can be expensive |
Siding Materials Cost:
| Siding Material | Cost per Sq. Ft. | Pros | Cons |
|---|---|---|---|
| Brick | $10–$20 | Adds insulation | Expensive |
| Fiber cement | $5–$14 | Excellent value | Not eco-friendly |
| Stone | $7–$30 | Luxury appearance | Highest upfront cost |
| Vinyl | $3–$12 | Most affordable | Lifespan/fading |
Window Frame Materials Cost:
| Window Frame Material | Cost | Pros | Cons |
|---|---|---|---|
| Aluminum | $75–$400 each | Most affordable | Minimal insulation |
| Composite | $300–$1,200 each | Good insulation | Expensive |
| Fiberglass | $500–$1,500 each | Best insulation | Most expensive |
| Vinyl | $100–$900 each | Best value | Can warp in heat |
| Wood | $150–$1,300 each | Beautiful look | High-maintenance |
Type

The type of garage you want is another crucial cost factor and can create price swings of tens of thousands of dollars.
First, you should decide whether you want an attached or detached garage. An attached garage will be more affordable, costing between $30 and $60 per square foot, in most cases. A detached garage will cost between $40 and $70 per square foot, sometimes even more.
However, you’ll have more freedom when it comes to size, layout, and even exterior materials since it doesn’t look as strange to have a mismatched detached garage. The average property size in Houston is 0.15 acres, so most residents will have enough space to choose detached if they wish.
Next, you’ll need to decide how big you want to go. The average household size in Houston is 2.5 people, and a two-car garage is the most common size to match the needs of residents. Most homeowners in Houston choose two-car garages to conform to the neighborhood, as close to 50% of all homes in the city have this size.
| Garage Type | Average Cost |
|---|---|
| One-car | $8,200–$21,200 |
| Two-car | $11,750–$31,400 |
| Three-car | $21,950–$44,800 |
| Attached | $8,450–$51,250 |
| Detached | $11,300–$59,800 |
Permits
The City of Houston requires building permits for all new construction, including attached and detached garages, so it’s a good idea to budget for permit fees while you’re considering material and labor costs. The permit fee for construction in Houston is based on project size and cost, but you can use the city’s permit fee calculator or ask your garage builder to estimate your fees. Based on the average cost to build a garage in Houston, the permit fee will average $381.66.
Accessibility
If you plan on making your garage more accessible, you may need to hire a local ramp installation pro to install a ramp over the concrete foundation. This may require extra landscaping renovations.
Add-Ons
There are many add-ons to choose from when building a garage, and while each one you choose will increase your garage addition cost, it will also add more utility and potential value to your project.
| Type of Add-On | Average Cost |
|---|---|
| Windows | $300–$2,500 |
| Automatic door | $750–$5,000 |
| Exterior door | $150–$1,400 |
| Insulation | $1,900–$7,700 |
| Storage | $500–$2,200 |
| Security | $300–$2,000 |
| Living space | $125–$250 per sq. ft. |
Garage Builder Costs
Hiring a professional garage builder in Houston will cost an average of between $11,600 and $16,200 in labor alone, which means labor accounts for between 50% and 70% of your total. On a per-hour basis, labor in Houston will cost about 5% less than the national average because the cost of living, which drives labor costs, is below average in Houston.
Hiring a pro to build your garage is undoubtedly expensive, but for such a complicated project, it’s well worth the investment. The City of Houston will also only issue permits for a project of this magnitude to an individual who has a general contractor’s license, so a professional is necessary to keep your project legal. Make sure your pro has the proper licensing before hiring.
One last factor to consider when it comes to labor is the sales tax that your expert will need to charge. The sales tax rate in Houston is 8.25%, so expect tax to add an average of $1,909.30 to your total.
Installing a garage door without prior experience can be extremely challenging and potentially dangerous. It's highly recommended to contact a pro if you need a garage door installed.
Does Building a Garage Increase Home Value?
Yes, building a garage will increase your home value in Houston. On average, the project provides an ROI of between 75% and 85%, which means building a garage will add an average of between $17,300 and $19,700 to your property value.
You can get the most value add from your build by upgrading to a two-car garage, as this is the most common type in Houston, and conforming to the neighborhood is usually best in terms of value. Going with common exterior materials like metal or clay tile roofing and stucco, brick, or fiber cement siding can also help your project conform to the neighborhood and further boost value.
How Angi Gets Its Cost Data
Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We survey real Angi customers about their project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We pair this data with research from reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects.
Want to help us improve our cost data? Send us a recent project quote to [email protected]. Quotes and personal information will not be shared publicly.
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