How Much Does Room Addition Cost in Round Rock, TX?

Round Rock pricing is near the national average. Updated for 2026.

Based on local labor rates, varied climate conditions, and Round Rock's diversified economy.See our methodology

Low End
$20,400
Average
$45,900
High End
$81,600
per project
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Room Addition Pricing in Round Rock, TX

In Round Rock, room addition costs are 2% above the national average, reflecting the city's diversified-driven economy. The balanced labor market means you have decent options when shopping for quotes. Most residents with a population base of 130K find the pricing competitive relative to the local cost of living.

Local climate plays a direct role in room addition costs here. Extreme heat drives heavy HVAC demand; severe storms create periodic repair surges.

Market-specific factors matter in Round Rock: no state income tax in many Southern states helps keep overall costs lower.

Round Rock has moderate permitting requirements. Depending on the scope of your room addition project, you may need local permits. A licensed contractor will handle the permitting process as part of the job in most cases.

Round Rock vs National Average

Round Rock Average
$45,900
National Average
$45,000
Difference
+2%
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What Affects Room Addition Cost in Round Rock?

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

Round Rock Market Conditions

no state income tax in many Southern states helps keep overall costs lower

Local Climate Impact

extreme heat drives heavy HVAC demand; severe storms create periodic repair surges

๐Ÿ“ Room Addition in Round Rock Cost Calculator

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Top-Rated Room Addition Pros in Round Rock, TX

6 providers

Modern Edge Renovations

โญ PREMIUM
โ˜…โ˜…โ˜…โ˜…โ˜…4.5(131 reviews)
๐Ÿ“ 189 Washington Ave, Round Rock, TX๐Ÿ—๏ธ Since 1994
โœ“ LicensedBBB: A+โšก Usually responds in 2 hours

Serving Round Rock and surrounding areas since 1994. Licensed, insured, and committed to quality workmanship at fair prices.

Craftsman Renovations

โญ PREMIUM
โ˜…โ˜…โ˜…โ˜…โ˜…4.3(140 reviews)
๐Ÿ“ 488 Business Park Dr, Round Rock, TX๐Ÿ—๏ธ Since 1989
โœ“ LicensedBBB: A+โšก Usually responds in 2 hours

Serving Round Rock and surrounding areas since 1989. Licensed, insured, and committed to quality workmanship at fair prices.

Renovation Construction

โ˜…โ˜…โ˜…โ˜…โ˜…4.9(67 reviews)
๐Ÿ“ 797 Main St, Round Rock, TX๐Ÿ—๏ธ Since 1997
โœ“ Licensedโœ“ InsuredBBB: A

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Tips to Save on Room Addition in Round Rock

  • 1.A bump-out (extending an existing room 2-4 feet) costs $5,000-$15,000 โ€” 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 โ€” save 15-25% on management fees
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๐Ÿ“ˆ Room Addition in Round Rock Cost Trends (2020โ€“2024)

Prices have increased +17.7% over the last 5 years

$38,988
2020
$40,625
2021
$43,266
2022
$44,477
2023
$45,900
2024
YearNational AvgYoY Change
2020$38,988โ€”
2021$40,625+4.2%
2022$43,266+6.5%
2023$44,477+2.8%
2024$45,900+3.2%

Based on national averages adjusted for annual inflation. Actual costs vary by location and project scope.

๐Ÿ’ฌ What Did You Pay?

Real costs reported by homeowners for Room Addition in Round Rock

$45,164
Avg Reported
$31,615
Lowest Reported
$65,488
Highest Reported

Recent Reports

$40,692
Dallas, TX ยท Jan 2024
โ˜…โ˜…โ˜…โ˜†โ˜†
$51,306
Chicago, IL ยท Feb 2024
โ˜…โ˜…โ˜…โ˜…โ˜†
$43,062
Phoenix, AZ ยท Mar 2024
โ˜…โ˜…โ˜…โ˜…โ˜†
$50,885
Denver, CO ยท Apr 2024
โ˜…โ˜…โ˜…โ˜†โ˜†
$43,353
Atlanta, GA ยท May 2024
โ˜…โ˜…โ˜…โ˜†โ˜†
$49,956
Seattle, WA ยท Jun 2024
โ˜…โ˜…โ˜…โ˜†โ˜†

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 โ€” 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 Round Rock than other cities?

Round Rock's costs reflect local labor rates driven by the diversified economy, varied climate conditions that affect materials and scheduling, and moderate permitting requirements. The balanced labor market also influences competitive pricing.

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