Home addition cost in Killeen, TX
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (300 sq ft)
- $31,900 – $64,800
- Per sq ft
- $105 – $210
- before permit
- Versus US midpoint
- −16%
- US $57,500
- Rank of 300 metros
- #280
- 1 = most expensive
If you want to build a home addition in Killeen, plan on $31,900 to $64,800 for 300 sq ft, all in. Per sq ft, that is $105 to $210 for materials and labor, with the permit on top. The local midpoint runs 16% lower than the national one. Carpenters earn a median of $22.87 an hour in the Killeen area, 21% below the US median of $29.12.
Estimate your home addition cost
Pick a size, a quality level and where you live. Prices update as you type.
Estimated cost for 300 sq ft in Killeen, TX, standard level
$41,800 to $54,900
About $136 to $178 per sq ft before permits. Labor is about 63% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $14,600 | $19,100 |
| Labor | $26,300 | $34,400 |
| Permits and fees | $870 | $1,400 |
| Total | $41,800 | $54,900 |
Cost breakdown for 300 sq ft in Killeen, TX
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $11,300 | $16,900 | $22,500 | 35% |
| Labor | $20,200 | $30,400 | $40,500 | 63% |
| Permits and fees | $460 | $1,150 | $1,800 | 2% |
| Total | $31,900 | $48,400 | $64,800 | 100% |
What is behind the Killeen number
We price the labor side from BLS wage data for 6 trades: carpenters at 50%, cement masons and concrete finishers at 10%, electricians at 10%, plumbers, pipefitters and steamfitters at 10%, drywall and ceiling tile installers at 10%, roofers at 10%. Weighted together, Killeen wages are 0.79 times the national level. Labor makes up about 63% of the midpoint estimate (67% at national prices).
On the materials line, the BEA goods price index for the Killeen metro is 93.8 (US = 100). The midpoint materials bill for 300 sq ft comes to $16,900, compared with $18,000 at national prices. Permit and inspection fees are scaled by the broader index (91.1) and land at $460 to $1,800.
Data note: 10% of the labor weighting for this project uses a statewide median because BLS has no published metro figure for that trade in Killeen. The wage table below marks each row.
Killeen: what basic, standard and premium work costs
Three bands are cut from the same cited range and localized for Killeen wages and prices. They overlap on purpose: a good standard job and a modest premium job can cost the same. The grid below prices the same bands at 3 common sizes.
Basic
$31,900 to $45,100
Bump-out or simple room without plumbing
Standard
$41,800 to $54,900
Standard room addition with HVAC and electrical
Premium
$51,700 to $64,800
Large addition with bath or kitchen and a new foundation
| Size | Basic | Standard | Premium |
|---|---|---|---|
| bump-out (100 sq ft) | $11,000 – $15,700 | $14,500 – $19,300 | $18,100 – $22,800 |
| 20x20 room (400 sq ft) | $42,400 – $59,800 | $55,400 – $72,800 | $68,400 – $85,800 |
| large suite (600 sq ft) | $63,400 – $89,200 | $82,700 – $108,500 | $102,000 – $128,000 |
Killeen against nearby metros and the rest of Texas
Of the five closest metros, 1 is cheaper than Killeen. College Station is the lowest at about $47,900 (midpoint, 300 sq ft), 85 miles away.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Killeen, TXthis page | $31,900 – $64,800 | $48,400 | |
| Waco, TX40 miles | $32,300 – $65,600 | $48,900 | +1% |
| Austin, TX65 miles | $33,800 – $68,700 | $51,300 | +6% |
| College Station, TX85 miles | $31,600 – $64,200 | $47,900 | −1% |
| Dallas, TX125 miles | $34,400 – $69,800 | $52,100 | +8% |
| San Antonio, TX130 miles | $32,800 – $66,500 | $49,600 | +3% |
| Texas (statewide) | $33,600 – $68,200 | $50,900 | +5% |
| United States | $38,000 – $77,000 | $57,500 | +19% |
Across 300 US metros, Killeen comes in at #280 from the top. The priciest is Honolulu, HI at $79,600; the cheapest is Brownsville, TX at $44,300 (midpoints, 300 sq ft). Statewide, Killeen is 5% below the Texas figure.
Other Texas metros
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Dallas, TX | 4,049,800 jobs | $34,400 – $69,800 | $52,100 | +8% |
| Houston, TX | 3,289,720 jobs | $34,100 – $69,200 | $51,600 | +7% |
| Austin, TX | 1,293,690 jobs | $33,800 – $68,700 | $51,300 | +6% |
| San Antonio, TX | 1,126,880 jobs | $32,800 – $66,500 | $49,600 | +3% |
| El Paso, TX | 339,120 jobs | $30,200 – $61,200 | $45,700 | −6% |
| McAllen, TX | 296,700 jobs | $30,100 – $61,000 | $45,500 | −6% |
Cities with a workforce like Killeen's
Big cities and small ones price differently, so here is Killeen against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Gainesville, FL | 152,670 jobs | $32,800 – $66,600 | $49,700 | +3% |
| Fargo, ND | 148,660 jobs | $37,400 – $75,800 | $56,600 | +17% |
| Roanoke, VA | 153,980 jobs | $32,800 – $66,600 | $49,700 | +3% |
| Myrtle Beach, SC | 146,260 jobs | $32,200 – $65,400 | $48,800 | +1% |
Killeen labor market for home addition
Wages are the part of this estimate that changes most from town to town. 6 trades carry the job here, and each is compared with its US median. The weighted result for Killeen is 0.79 times the national level.
For carpenters (47-2031, weighted 50%) the local median is $22.87 an hour, which is 21% below the national $29.12. The middle half of them earn between $21.30 and $28.43 an hour. BLS counts 270 of them working in the area, 17.9 for every 10,000 jobs (US: 43.1), so the local bench is thinner than average.
For cement masons and concrete finishers (47-2051, weighted 10%) the local median is $22.60 an hour, which is 18% below the national $27.41. The middle half of them earn between $18.66 and $22.98 an hour. BLS counts 390 of them working in the area, 25.9 for every 10,000 jobs (US: 13.3), so the local bench is deeper than average.
Electricians (47-2111), 10% of the weighting: a median of $23.88 an hour, 21% below the US median of $30.38. The middle half of them earn between $20.14 and $29.84 an hour. About 550 work in the metro. That is 36.5 per 10,000 jobs, compared with 48.7 nationally, so expect fewer local crews to bid.
For plumbers, pipefitters and steamfitters (47-2152, weighted 10%) the local median is $27.22 an hour, which is 11% below the national $30.67. The middle half of them earn between $21.20 and $29.55 an hour. BLS counts 340 of them working in the area, 22.6 for every 10,000 jobs (US: 30.0), so the local bench is thinner than average.
Drywall and ceiling tile installers (47-2081), 10% of the weighting: a median of $19.28 an hour, 32% below the US median of $28.33. The middle half of them earn between $19.28 and $23.07 an hour. About 80 work in the metro. That is 5.3 per 10,000 jobs, compared with 5.3 nationally, so the supply of crews looks typical.
Roofers (47-2181) carry 10% of the labor weighting. BLS does not publish this trade for the Killeen metro, so we used the Texas statewide median: $22.13 an hour against $26.65 for the US. The middle half of them earn between $18.00 and $25.78 an hour.
Quotes come from real crews, not medians. If the carpenters on your job are paid at the 75th percentile ($28.43 an hour) instead of the median, the labor line grows by about $3,650. At the 25th percentile ($21.30) it shrinks by about $1,050. The total moves by 7.5% or 2.1%, so wages alone rarely explain a quote that is far outside our range.
For context on the local economy, BLS counts 150,580 jobs in the Killeen-Temple area. That makes it the 155th largest of the 300 metros we cover, with 0.10% of US employment.
| Trade | Weight | 25th pct | Median | 75th pct | US median | Ratio | Level used |
|---|---|---|---|---|---|---|---|
| Carpenters (47-2031) | 50% | $21.30 | $22.87 | $28.43 | $29.12 | 0.79 | metro |
| Cement masons and concrete finishers (47-2051) | 10% | $18.66 | $22.60 | $22.98 | $27.41 | 0.82 | metro |
| Electricians (47-2111) | 10% | $20.14 | $23.88 | $29.84 | $30.38 | 0.79 | metro |
| Plumbers, pipefitters and steamfitters (47-2152) | 10% | $21.20 | $27.22 | $29.55 | $30.67 | 0.89 | metro |
| Drywall and ceiling tile installers (47-2081) | 10% | $19.28 | $19.28 | $23.07 | $28.33 | 0.68 | metro |
| Roofers (47-2181) | 10% | $18.00 | $22.13 | $25.78 | $26.65 | 0.83 | state |
| Blended | 100% | 0.79 | |||||
Specs and site conditions that change a Killeen bid
Type of addition
A new room is $125-$250 per sq ft; a bump-out $85-$200; an attic conversion $50-$150; a garage conversion $50-$200 (HomeGuide).
Plumbing and fixtures
Adding a bathroom or kitchen drives the price up the most.
Permits
Construction permits run $500-$2,000, or $5-$21 per $1,000 of project cost (HomeGuide).
Climate in Killeen: timing your home addition job
We use NOAA's 1991-2020 climate normals for Killeen (5 miles from the city center). These are 30-year monthly averages, not forecasts.
October through May is the stretch where digging, grading and setting material in the ground runs into the fewest weather problems in Killeen (8 of 12 months). June, July, August and September have an average daytime high of 90°F or more.
Killeen gets about 35 inches of precipitation in a normal year. The wettest months are May, September and October (4.7 inches in May). Inside the workable window, February and April are the driest, at 2.2 and 2.1 inches. The station averages about 105 days a year at 90°F or above.
Does the season change the price? Probably, but we do not have a sourced seasonal price curve, so the estimator shows a year-round figure and does not adjust by month. When you collect quotes, ask whether scheduling in a slower month gets a better rate.
| Month | Avg high °F | Avg low °F | Precip (in) | For this job |
|---|---|---|---|---|
| Jan | 60 | 36 | 2.5 | Workable |
| Feb | 63 | 40 | 2.2 | Workable |
| Mar | 70 | 47 | 3.3 | Workable |
| Apr | 77 | 54 | 2.1 | Workable |
| May | 84 | 63 | 4.7 | Workable |
| Jun | 92 | 70 | 3.2 | Hot |
| Jul | 96 | 72 | 2.7 | Hot |
| Aug | 97 | 73 | 1.6 | Hot |
| Sep | 90 | 67 | 3.9 | Hot |
| Oct | 80 | 56 | 3.4 | Workable |
| Nov | 69 | 46 | 2.7 | Workable |
| Dec | 60 | 38 | 2.4 | Workable |
Related projects, priced for Killeen
Because every project leans on different trades, Killeen's wage level does not move all prices equally. Against the US midpoint, kitchen remodel runs −9% and roof replacement −13%.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Kitchen remodel | 120 sq ft | $16,800 – $28,600 | −9% |
| Bathroom remodel | 45 sq ft | $4,100 – $20,400 | −12% |
| Detached garage | 576 sq ft | $25,100 – $50,500 | −13% |
| Roof replacement | 2,000 sq ft of roof | $5,200 – $10,900 | −13% |
Get 3 local quotes
Tell us about the job and we will try to connect you with up to three local contractors for written quotes. It is free and you are under no obligation to hire. Your estimate of $41,800 to $54,900 for Killeen, TX is attached.
A detailed PDF report of this estimate, $9
The report lays out the home addition numbers for Killeen, TX line by line, with the local wage and price inputs, permit and timing notes, a quote comparison sheet and the full method. Save your estimate above, preview page 1 free, and unlock the full report for $9 one-time, or get every report with CostLocal Pro.
Home addition in Killeen: your questions
+How much does it cost to build a home addition in Killeen?
For 300 sq ft, expect $31,900 to $64,800 in the Killeen area. A standard-spec job lands at $41,800 to $54,900. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for home addition in Killeen?
About $105 to $210 per sq ft for materials and labor, plus $460 to $1,800 for the permit if one is needed. The US range is $125 to $250.
+Is home addition cheaper in Killeen or Waco?
Waco is 40 miles away. The midpoint for 300 sq ft there is $48,900, which is 1% more than Killeen ($48,400). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Killeen?
About 63% at the midpoint, or $30,400 out of $48,400. Materials are 35% and permits 2%. Nationally, labor is 67%.
+What would 20x20 room (400 sq ft) cost in Killeen?
$42,400 to $85,800. Pick a different size in the estimator above to get your own number.
+Does home addition need a permit in Killeen?
Often, but rules are set by your city or county building office, so call before you hire. Budget $460 to $1,800 for fees in the Killeen area (our national range of $500 to $2,000 scaled by the local price level).
+Is Killeen expensive for home addition compared with the rest of Texas?
Killeen is 5% below the Texas statewide estimate ($50,900 at the midpoint). We cover 21 metros in Texas; see the state page to compare them.
+What do carpenters earn in Killeen?
The BLS median is $22.87 an hour in the Killeen area, compared with $29.12 nationally. The 25th to 75th percentile range is $21.30 to $28.43.
+What do basic and premium home addition work cost in Killeen?
For 300 sq ft, basic work runs $31,900 to $45,100 and premium work $51,700 to $64,800. Basic means: bump-out or simple room without plumbing. Premium means: large addition with bath or kitchen and a new foundation.
+When is the best time to build a home addition in Killeen?
Based on NOAA 1991-2020 normals, the comfortable months for this kind of work are October through May. February and April are typically the driest of those months. Local contractors' schedules matter as much as the weather, so book early for the busy months.
Home addition near Killeen
Where these numbers come from
Base prices are national ranges from the sources below. We scale labor by local BLS wages, materials by BEA goods prices and permits by the BEA all-items price level. Full method on the methodology page.
- HomeGuide: How Much Does a Home Addition Cost? (2026) (accessed November 4, 2026)
- Cost to Renovate: Renovation Labor Report 2026: Where the Money Goes (accessed November 4, 2026)
- HomeGuide: 2026 Building Permit Costs | Fees & Cost Calculator (accessed November 4, 2026)
- BLS Occupational Employment and Wage Statistics, May 2025
- BEA Regional Price Parities, 2024
- NOAA NCEI U.S. Climate Normals, 1991-2020
Note on derived figures: Materials = 32% of the installed price, from Cost to Renovate's mid-range 'Structural' category split (56% labor, 32% materials, 11% permits and design). It is a category average rather than an addition-specific figure.