Estimating additions and ADUs in Dallas, TX
Prices for additions and ADUs in Dallas, TX, how they compare with the national median and what to know when bidding here, for remodeling contractors.
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Room addition prices in Dallas
Q4 2026 pricing. Ranges are rounded to the nearest $50, or $100 from $5,000 up.
1 story over a basement
$40,400 to $267,800
150 to 1,000 square feet
National median: $45,700 to $302,100.
2 story over a basement
$61,800 to $415,600
150 to 1,000 square feet
National median: $69,300 to $464,400.
How Dallas compares
Across the work in the cost data, Dallas prices run 9% below the national median.
More work in Dallas
- Kitchen remodelsCabinets, countertops, appliances and finishes.
- Bathroom remodelsTile, fixtures, vanities and plumbing rough-ins.
- GaragesOne and two car garages, framed and sided.
- Decks and porchesFraming, decking, railings and stairs.
- PaintingInterior and exterior, by surface area and substrate.
- Electrical workService upgrades, rough-ins, fixtures and finish work.
- All of Dallas, TXEvery category, against the national median.
- Additions and ADUs nationallyNational ranges, cost drivers and the estimate's structure.
Estimate additions and ADUs with Dallas prices
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