How Much Does Room Addition Cost in Houston, TX?
Houston pricing is near the national average. Updated for 2026.
Based on local labor rates, humid-subtropical climate conditions, and Houston's energy-healthcare-aerospace economy.See our methodology
Room Addition Pricing in Houston, TX
Houston offers near-average pricing for room addition, making it a reasonable market for this service. The local energy-healthcare-aerospace economy supports a competitive labor pool, and the city's 2.3M population base ensures you can find multiple qualified providers to compare quotes.
Local climate plays a direct role in room addition costs here. Extreme heat drives high HVAC demand; hurricane season affects roofing and water damage costs.
Market-specific factors matter in Houston: no state income tax keeps overall costs lower; large contractor pool creates competitive pricing.
Permitting in Houston is relatively straightforward compared to many metros. While permits may still be required depending on the scope of your room addition project, the process is generally faster and less costly than in heavily regulated markets.
Houston vs National Average
What Affects Room Addition Cost in Houston?
Size
Small (100 sq ft): $15,000-$25,000. Average (200 sq ft): $30,000-$50,000. Large (400+ sq ft): $60,000-$100,000+
Room Type
Basic bedroom: $20,000-$40,000. Bedroom + bathroom: $35,000-$65,000. In-law suite: $50,000-$100,000+
Per Sq Ft
Budget: $80-$150/sq ft. Mid-range: $150-$250/sq ft. High-end: $250-$400+/sq ft
Houston Market Conditions
no state income tax keeps overall costs lower; large contractor pool creates competitive pricing
Local Climate Impact
extreme heat drives high HVAC demand; hurricane season affects roofing and water damage costs
📐 Room Addition in Houston Cost Calculator
Get a personalized estimate based on your project details
Get Free Renovation Estimates
Connect with licensed contractors for your project.
Top-Rated Room Addition Pros in Houston, TX
3 providersNextLevel Interiors
✅ VERIFIEDSignature Design & Build
Dream Home Renovations
Are You a Room Addition Professional?
Get listed on CostWhale and reach thousands of customers searching for room addition in Houston, TX.
🔍 Get Free Quotes from Local Pros
Compare prices from pre-screened contractors in your area. Free, no-obligation estimates.
* CostWhale may earn a commission. This doesn't affect our pricing data or recommendations.
Tips to Save on Room Addition in Houston
- 1.A bump-out (extending an existing room 2-4 feet) costs $5,000-$15,000 — much less than a full addition
- 2.Building over an existing garage or patio saves on foundation costs
- 3.A dormer addition (expanding attic space) costs 30-50% less than a ground-floor addition
- 4.Act as your own general contractor if you have experience — save 15-25% on management fees
📈 Room Addition in Houston Cost Trends (2020–2024)
Prices have increased +17.7% over the last 5 years
| Year | National Avg | YoY Change |
|---|---|---|
| 2020 | $36,312 | — |
| 2021 | $37,837 | +4.2% |
| 2022 | $40,296 | +6.5% |
| 2023 | $41,424 | +2.8% |
| 2024 | $42,750 | +3.2% |
Based on national averages adjusted for annual inflation. Actual costs vary by location and project scope.
💬 What Did You Pay?
Real costs reported by homeowners for Room Addition in Houston
Recent Reports
Frequently Asked Questions
Does a room addition increase home value?
Yes, though ROI varies: 50-65% for a standard room addition, 60-75% for a bedroom + bathroom addition. The value also depends on whether the addition fits the neighborhood — over-improving for your area yields lower returns.
How long does a room addition take?
Typical timeline: 2-4 weeks for permits and planning. 8-16 weeks for construction. Total: 3-5 months. Complex additions with full bathrooms or custom features can take 6-12 months.
Why does room addition cost different in Houston than other cities?
Houston's costs reflect local labor rates driven by the energy-healthcare-aerospace economy, humid-subtropical climate conditions that affect materials and scheduling, and relaxed permitting requirements. The competitive labor market also influences competitive pricing.
Room Addition Cost in Nearby Cities
Related Cost Guides for Houston
Popular Services in Houston
💰 Get Weekly Cost-Saving Tips
Join 10,000+ smart homeowners. Unsubscribe anytime.