Remodeling your bathroom can add significant value to your home. The cost of your bathroom remodel in Los Angeles, CA, will depend on size, fixtures, materials, labor, and other factors.
Home Addition Cost in Dallas [2025 Data]
Normal Range: $21,566 - $57,662
A home addition costs an average of $37,582 in Dallas, Texas. Depending on the location, size, type, and materials, most homeowners spend between $21,566 and $57,662.
How we get this data
Ursula Page / Adobe Stock Photography
Ursula Page / Adobe Stock Photography
Highlights
The size and type of home addition you’re looking to build and the quality of materials you choose are the most significant cost factors to consider.
Building out costs between $50 and $200 per square foot, while building a second-story addition costs between $200 and $400 per square foot.
The average property size in Dallas is 0.22 acres, so most homeowners have plenty of space to build out and keep costs low.
A home addition will increase your home value by an average of between 1.5% and 4% in Dallas.
Building a home addition in Dallas costs an average of $37,582, and most residents pay between $21,566 and $57,662. Prices depend mostly on whether you choose to build up or out, the square footage you’re looking to add, and the quality of the materials you choose for the job. The cost of living in Dallas is around 7% higher than the national average, but smaller add-ons and more space to build out mean below-average costs.
Home Addition Cost Factors
The price you’ll pay for a home addition in Dallas, Texas, depends on a few key factors. Some of the most important cost factors include the square footage you’re looking to add, whether you want to build out or up from your existing structure, and the quality of the materials you choose for both the interior and exterior of your new home addition. Permits, sales tax, and local labor costs will also play minor roles in your pricing.
Size
Home additions cost between $50 and $200 per square foot if you’re building out and between $200 and $400 per square foot if you’re building up. The cost to add a 10x10 room to a house costs an average of $10,000 if you build out and around $30,000 if you build up.
Where in those ranges your total falls also depends on the complexity of the room and its finishes. For example, adding a bathroom will often cost more than a bedroom since it requires additional plumbing and electrical work.
Price Notice
Remember that if you add square footage to your home, the cost of your homeowners insurance will increase accordingly. Before you embark on this project, speak to your insurance company about expected costs.
Dallas homeowners enjoy nice-sized properties averaging 0.22 acres, which is larger than the national average and especially big for a major metropolitan area. With home sizes taking up an average of just 1,950 square feet, the average Dallas resident will have over 7,500 square feet of yard to play with. This means most will have the option of building out rather than up, which contributes to lower overall costs.
| Size (Sq. Ft.) | Building Out | Building Up |
|---|---|---|
| 60 | $3,500-$8,850 | $13,250-$22,050 |
| 80 | $4,700-$11,750 | $17,650-$29,450 |
| 100 | $5,850-$14,750 | $22,050-$36,800 |
| 150 | $8,850-$22,050 | $33,100-$55,200 |
| 200 | $11,750-$29,450 | $44,150-$73,600 |
| 300 | $17,650-$44,150 | $66,250-$110,450 |
| 400 | $23,550-$58,900 | $88,300-$147,200 |
Materials
As you can imagine, it takes many kinds of building materials to complete a custom home addition. Material prices vary widely, so your price could push closer to $57,662 if you choose luxury or high-end materials at each step of the way.
There are many materials you’ll need to consider when building a home addition, but the exterior materials are more influential when it comes to differences in local costs. Interior materials are entirely up to personal preference, while things like roofing, siding, and insulation all need to suit the very hot climate and risk of tornadoes and hailstorms. The tables below include some basic pricing comparisons for exterior materials common in Dallas.
Foundation Materials Cost:
| Foundation Material | Cost per Sq. Ft. | Pros | Cons |
|---|---|---|---|
| Basement | $20–$37 | Adding living space | Most expensive |
| Crawl space | $6–$18 | Room for utilities | More expensive |
| Slab | $5–$16 | Most affordable | No additional room |
Insulation Materials Cost:
| Insulation Material | Cost per Sq. Ft. | Pros | Cons |
|---|---|---|---|
| Blown-in | $0.60–$2.30 | Great insulation | Expensive |
| Fiberglass batts | $0.30–$0.40 | Easy to install | Lower R-value |
| Rigid foam | $0.25–$0.50 | High R-value | Difficult to install |
Roofing Materials Cost:
| Roofing Material | Cost per Sq. Ft. | Pros | Cons |
|---|---|---|---|
| Asphalt shingles | $1–$4 | Most affordable | Least durable |
| Clay tile | $3–$13 | Excellent insulation | Prone to cracking |
| Metal | $4–$16 | Reflects sunlight | Expensive |
Siding Materials Cost:
| Siding Material | Cost per Sq. Ft. | Pros | Cons |
|---|---|---|---|
| Brick | $10–$20 | Adds insulation | Expensive |
| Fiber cement | $5–$14 | Great value | Not recyclable |
| Stone | $7–$30 | Bump in value | Most expensive |
| Vinyl | $3–$12 | Affordability | Minimal insulation |
Window Frame Materials Cost:
| Window Frame Material | Cost | Pros | Cons |
|---|---|---|---|
| Aluminum | $75–$400 each | Most affordable | Minimal insulation |
| Composite | $300–$1,200 each | High insulation | Sustainability |
| Fiberglass | $500–$1,500 each | Best insulation | Most expensive |
| Vinyl | $100–$900 each | Can add insulation | Hard to paint |
| Wood | $150–$1,300 each | Nicest appearance | Can swell in heat |
Type
The cost to add on a room varies based on the type of home addition you’re going with and the size of the room you’re building. With above-average property sizes, many homeowners in Dallas opt for things like bumpouts and detached garages over second-story additions to save money.
| Addition Type | Average Cost |
|---|---|
| Bumpout | $7,400–$31,800 |
| Detached garage | $14,200–$24,900 |
| Dormer | $4,400–$18,500 |
| In-law suite | $18,500–$196,100 |
| Second-story | $74,000–$185,000 |
| Sunroom | $16,300–$55,500 |
The type of room matters, too, as rooms like kitchens and bathrooms require plumbing work that a bedroom doesn’t, while an unfinished attic home addition may not require electrical or HVAC work that a bedroom needs. The cost per square foot for your home addition will vary based on utilities and the finishes required for how you plan on using the extra square footage.
Site Prep
On average, site prep for a home addition costs between $1,500 and $5,000. You may not need any site prep in some cases, while other home addition projects may require grading land, demolishing concrete patios, removing trees, and other work that can add to your total.
Since more Dallas homeowners choose to build out, you’re more likely to need to account for site prep than in many other cities with smaller property sizes. Any excavation work, in particular, will drive up site prep costs because the soil in Dallas is known to have a high clay concentration and be unusually hard to excavate. Still, paying for site prep to level land or dig for a foundation will cost less than you’d pay to build up instead.
Permits
All major construction projects in Dallas will require permits, so you’ll need a building permit for your home addition in the area. The city charges permit fees based on the square footage you’re adding to your home. You can download the worksheet on the City Hall’s website to determine your specific fees.
Just as an example, adding 250 square feet of living space to a home in Dallas will come with a base fee of $267.50, individual trade permits totaling $125 each, a technology fee of $15, and a plan review fee of $577. In total, permits for a 250-square-foot home addition in Dallas will cost you $1,234.50.
Home Addition Pro Costs
You can expect between 40% and 60% of your total to go toward labor when you hire a home builder in Dallas to handle your home addition construction. That means, on average, labor alone will cost you between $15,000 and $22,600.
The cost of living in Dallas is around 7% higher than the national average, contributing to above-average labor costs. Still, it’s worth hiring a pro for the best results, and it’s also illegal to do most of the construction work yourself.
For the sake of completion, you should also consider sales tax, which your contractor will charge on top of the total for materials and labor. The sales tax in Dallas is 8.25% including state and city taxes, which means an average total of $3,100 in taxes.
Does a Home Addition Increase Property Value?
Expanding your living space with a home addition will increase property value. On average, a home addition provides a return on investment (ROI) of 20% to 50%, which means the typical project in the city will add between $7,500 and $18,800 to your home value. With the average home value in the city sitting at $483,000, that means a home addition will increase property value by between 1.5% and 4%.
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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