How Much Does Room Addition Cost in Tennessee?
Tennessee pricing is below the national average. Updated for 2026.
Room Addition Pricing in Tennessee
In Tennessee, the average cost for room addition is $38,700 per project, which is 14% lower than the national average of $45,000. Most Tennessee residents pay between $17,200 and $68,800.
Tennessee benefits from a lower cost of living than many states, resulting in more affordable pricing for room addition. This makes it one of the more budget-friendly states for this service.
A room addition extends your home's footprint by building a new room — bedroom, family room, home office, or in-law suite. It's one of the most expensive renovations but adds significant living space and value.
Tennessee vs National Average
What Affects Room Addition Cost in Tennessee?
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
📐 Room Addition in Tennessee 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 Tennessee
5 providersCraftsman Construction
✅ VERIFIEDCreative Design & Build
Dream Home Interiors
Are You a Room Addition Professional?
Get listed on CostWhale and reach thousands of customers searching for room addition in Tennessee.
💡 Tips to Save on Room Addition in Tennessee
- 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 Tennessee Cost Trends (2020–2024)
Prices have increased +17.7% over the last 5 years
| Year | National Avg | YoY Change |
|---|---|---|
| 2020 | $32,872 | — |
| 2021 | $34,253 | +4.2% |
| 2022 | $36,479 | +6.5% |
| 2023 | $37,500 | +2.8% |
| 2024 | $38,700 | +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 Tennessee
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.
Room Addition Cost in Other States
Related Cost Guides for Tennessee
🔍 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.
💰 Get Weekly Cost-Saving Tips
Join 10,000+ smart homeowners. Unsubscribe anytime.