Cost to Build a House in Dallas County, Texas
Building a house in Dallas County, Texas costs about $187/sq ft in 2026 — roughly $329,120–$418,880 for a 2,000 sq ft mid-range home (construction only, land excluded). 4,651 single-family homes were permitted here in 2025, and the typical existing home is worth $311,003. Population: 2,600,000.
That applies a local adjustment of +8% to the Texas average of $173/sq ft.
How much building happens in Dallas County
Single-family homes permitted each year, 2000–2025. 2025 is highlighted; the 2008–2011 crash years are darker.
Dallas County is building 56% fewer homes than it did before the crash, up from a low of 2,569 in 2011. A thinner builder market can mean fewer bids and longer waits for specialist trades.
U.S. Census Bureau Building Permits Survey, county annual files 2000–2025 (1-unit structures, total including imputation).
Build or buy in Dallas County?
Building a median-size new home in Dallas County costs about $219,809 more than buying the typical existing one. That gap is wider than the Texas average of +62%, because existing homes here are cheaper than elsewhere in the state.
The two sides are not the same product: the build is brand new at the median new-home size for the South, the existing home is typically older and smaller. Lot cost uses Texas's average land share, and local lot prices can be well above or below it. Full Texas build-vs-buy comparison
Existing home value: Zillow Home Value Index, single-family, middle tier (2026-08) — an index of typical value, not a median sale price. Land: FHFA Working Paper 19-01.
What builders declared on Dallas County permits (2025)
The average declared valuation was $295,317 per home, against our $374,000 estimate for a 2,000 sq ft mid-range build. The two measure different things: builders declare a valuation for permit-fee purposes, which routinely understates finished cost, and permits cover homes of every size and finish level. We show both because quoting only the flattering one would be dishonest.
Source: U.S. Census Bureau Building Permits Survey, 2025 annual data.
Local Market Factors
- ›Dallas metro
- ›Corporate HQ concentration drives costs
What building in Dallas County actually involves
Cost per square foot is one number. These are the conditions behind it.
How busy this market is
Dallas County ranks 8th of 223 counties in Texas for single-family permits issued in 2025, accounting for 3.3% of all the single-family homes permitted statewide that year.
That is an active market with a reasonable choice of builders.
U.S. Census Bureau Building Permits Survey, co2025a.txt (2025).
What land adds on top
Land averages 23.9% of finished property value in Texas, which is a markup of about 31% on construction cost. For the $374,000 build above, that implies roughly $115,940 for the lot.
This is a statewide figure. Lots inside Dallas County's built-up areas will run above it and rural parcels below, so treat it as an order of magnitude rather than a budget line.
FHFA Working Paper 19-01 land values.
What the trades cost
Median hourly wage, Texas. BLS Occupational Employment and Wage Statistics, May 2025.
Climate, spec and timing
- 1,625 heating and 3,091 cooling degree days a year in Texas — cooling drives the mechanical budget. (NOAA, 2016-2025 average)
- The median new home in the South is 2,162 sq ft and the Census median contract price there is $157.3/sq ft, excluding land — the same basis as our estimate above. (Census Survey of Construction 2025)
- Statewide, permit filings peak in April and bottom out in November. Contractors have the most capacity in the quiet months.
- Texas issued 140,579 single-family permits in 2025 overall. See the 35-year state history.
Cost by Home Size in Dallas County
| Home Size | Basic | Mid-Range | Premium |
|---|---|---|---|
| 500 sq ft | $69,130 | $93,500 | $127,319 |
| 1,000 sq ft | $138,261 | $187,000 | $254,638 |
| 1,500 sq ft | $207,391 | $280,500 | $381,957 |
| 2,000 sq ft | $276,521 | $374,000 | $509,277 |
| 2,500 sq ft | $345,652 | $467,500 | $636,596 |
| 3,000 sq ft | $414,782 | $561,000 | $763,915 |
| 4,000 sq ft | $553,043 | $748,000 | $1,018,553 |
| 5,000 sq ft | $691,303 | $935,000 | $1,273,191 |
Other Texas counties
Costs are estimates only and represent construction costs, excluding land, architect fees, permits, and landscaping. Land in Texas averages 23.9% of finished property value (FHFA), which adds roughly 31% on top of these construction figures.
County multiplier of 1.08× applied to the Texas state average (which itself is 0.92× the national average of $188/sq ft).
Cost data: HouseBuildCalc Permit Cost Index (876,000+ building permits, 1,700+ ZIP codes), U.S. Census Bureau Survey of Construction, BLS Producer Price Index, NAHB Cost of Constructing a Home (published summaries). County-level multipliers are estimates derived from regional market data. County permits: U.S. Census Bureau Building Permits Survey. Home values: Zillow Home Value Index. For planning purposes only.