Home addition cost in Topeka, KS
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (300 sq ft)
- $34,400 – $69,800
- Per sq ft
- $113 – $227
- before permit
- Versus US midpoint
- −9%
- US $57,500
- Rank of 300 metros
- #182
- 1 = most expensive
If you want to build a home addition in Topeka, plan on $34,400 to $69,800 for 300 sq ft, all in. Per sq ft, that is $113 to $227 for materials and labor, with the permit on top. The local midpoint runs 9% lower than the national one. Carpenters earn a median of $24.62 an hour in the Topeka area, 15% below the US median of $29.12.
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Estimated cost for 300 sq ft in Topeka, KS, standard level
$45,100 to $59,200
About $147 to $193 per sq ft before permits. Labor is about 65% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $14,700 | $19,200 |
| Labor | $29,500 | $38,600 |
| Permits and fees | $840 | $1,400 |
| Total | $45,100 | $59,200 |
Cost breakdown for 300 sq ft in Topeka, KS
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $11,300 | $16,900 | $22,600 | 32% |
| Labor | $22,700 | $34,100 | $45,400 | 65% |
| Permits and fees | $440 | $1,100 | $1,800 | 2% |
| Total | $34,400 | $52,100 | $69,800 | 100% |
Where the Topeka price comes from
Labor is 65% of the midpoint bill here, against 67% nationally. The mix of trades behind this job is carpenters (50%), cement masons and concrete finishers (10%), electricians (10%), plumbers, pipefitters and steamfitters (10%), drywall and ceiling tile installers (10%), roofers (10%). We weight each trade's local median wage by that share and compare it with the national median. In Topeka the blended ratio comes out at 0.89.
On the materials line, the BEA goods price index for the Topeka metro is 94.0 (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 (88.8) and land at $440 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 Topeka. The wage table below marks each row.
Topeka 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 Topeka is 0.89 times the national level.
For carpenters (47-2031, weighted 50%) the local median is $24.62 an hour, which is 15% below the national $29.12. The middle half of them earn between $22.76 and $29.63 an hour. BLS counts 360 of them working in the area, 31.1 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 $25.69 an hour, which is 6% below the national $27.41. The middle half of them earn between $21.63 and $32.10 an hour. BLS counts 210 of them working in the area, 18.1 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 $31.50 an hour, 4% above the US median of $30.38. The middle half of them earn between $28.85 and $38.73 an hour. About 510 work in the metro. That is 44.1 per 10,000 jobs, compared with 48.7 nationally, so the supply of crews looks typical.
For plumbers, pipefitters and steamfitters (47-2152, weighted 10%) the local median is $36.10 an hour, which is 18% above the national $30.67. The middle half of them earn between $23.59 and $43.10 an hour. BLS counts 420 of them working in the area, 36.3 for every 10,000 jobs (US: 30.0), so the local bench is deeper than average.
Drywall and ceiling tile installers (47-2081) carry 10% of the labor weighting. BLS does not publish this trade for the Topeka metro, so we used the Kansas statewide median: $19.18 an hour against $28.33 for the US. The middle half of them earn between $17.25 and $26.89 an hour.
For roofers (47-2181, weighted 10%) the local median is $22.79 an hour, which is 14% below the national $26.65. The middle half of them earn between $22.69 and $30.55 an hour. BLS counts 100 of them working in the area, 8.6 for every 10,000 jobs (US: 8.7), so the local bench is about average.
Quotes come from real crews, not medians. If the carpenters on your job are paid at the 75th percentile ($29.63 an hour) instead of the median, the labor line grows by about $3,300. At the 25th percentile ($22.76) it shrinks by about $1,200. The total moves by 6.3% or 2.3%, so wages alone rarely explain a quote that is far outside our range.
For context on the local economy, BLS counts 115,750 jobs in the Topeka area. That makes it the 188th largest of the 300 metros we cover, with 0.07% of US employment.
| Trade | Weight | 25th pct | Median | 75th pct | US median | Ratio | Level used |
|---|---|---|---|---|---|---|---|
| Carpenters (47-2031) | 50% | $22.76 | $24.62 | $29.63 | $29.12 | 0.85 | metro |
| Cement masons and concrete finishers (47-2051) | 10% | $21.63 | $25.69 | $32.10 | $27.41 | 0.94 | metro |
| Electricians (47-2111) | 10% | $28.85 | $31.50 | $38.73 | $30.38 | 1.04 | metro |
| Plumbers, pipefitters and steamfitters (47-2152) | 10% | $23.59 | $36.10 | $43.10 | $30.67 | 1.18 | metro |
| Drywall and ceiling tile installers (47-2081) | 10% | $17.25 | $19.18 | $26.89 | $28.33 | 0.68 | state |
| Roofers (47-2181) | 10% | $22.69 | $22.79 | $30.55 | $26.65 | 0.86 | metro |
| Blended | 100% | 0.89 | |||||
Related projects, priced for Topeka
Because every project leans on different trades, Topeka's wage level does not move all prices equally. Against the US midpoint, bathroom remodel runs −4% and roof replacement −10%.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Kitchen remodel | 120 sq ft | $17,300 – $29,500 | −6% |
| Bathroom remodel | 45 sq ft | $4,500 – $22,300 | −4% |
| Detached garage | 576 sq ft | $26,700 – $53,600 | −8% |
| Roof replacement | 2,000 sq ft of roof | $5,450 – $11,300 | −10% |
How Topeka compares
Of the five closest metros, 3 are cheaper than Topeka. Lincoln is the lowest at about $50,800 (midpoint, 300 sq ft), 135 miles away.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Topeka, KSthis page | $34,400 – $69,800 | $52,100 | |
| Kansas City, MO75 miles | $38,400 – $77,700 | $58,100 | +11% |
| Wichita, KS125 miles | $33,900 – $68,700 | $51,300 | −1% |
| Lincoln, NE135 miles | $33,600 – $68,100 | $50,800 | −2% |
| Joplin, MO150 miles | $34,300 – $69,400 | $51,900 | level |
| Omaha, NE155 miles | $34,700 – $70,400 | $52,600 | +1% |
| Kansas (statewide) | $35,200 – $71,300 | $53,300 | +2% |
| United States | $38,000 – $77,000 | $57,500 | +10% |
Across 300 US metros, Topeka comes in at #182 from the top. The priciest is Honolulu, HI at $79,600; the cheapest is Brownsville, TX at $44,300 (midpoints, 300 sq ft). Statewide, Topeka is 2% below the Kansas figure.
Other Kansas metros
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Wichita, KS | 308,570 jobs | $33,900 – $68,700 | $51,300 | −1% |
Cities with a workforce like Topeka's
Big cities and small ones price differently, so here is Topeka against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Columbus, GA | 116,380 jobs | $31,800 – $64,500 | $48,200 | −8% |
| Tyler, TX | 115,220 jobs | $31,100 – $63,000 | $47,000 | −10% |
| Longview, TX | 118,060 jobs | $31,400 – $63,700 | $47,500 | −9% |
| Charlottesville, VA | 114,780 jobs | $35,700 – $72,300 | $54,000 | +4% |
Specs and site conditions that change a Topeka bid
Permits
Construction permits run $500-$2,000, or $5-$21 per $1,000 of project cost (HomeGuide).
Foundation
A foundation, framing, roofing and matching exterior finishes all have to be built before the interior work starts.
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).
Pick a size, pick a tier: home addition pricing in Topeka
Three bands are cut from the same cited range and localized for Topeka 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
$34,400 to $48,600
Bump-out or simple room without plumbing
Standard
$45,100 to $59,200
Standard room addition with HVAC and electrical
Premium
$55,700 to $69,800
Large addition with bath or kitchen and a new foundation
| Size | Basic | Standard | Premium |
|---|---|---|---|
| bump-out (100 sq ft) | $11,800 – $16,800 | $15,600 – $20,600 | $19,400 – $24,400 |
| 20x20 room (400 sq ft) | $45,800 – $64,500 | $59,800 – $78,500 | $73,800 – $92,500 |
| large suite (600 sq ft) | $68,500 – $96,200 | $89,300 – $117,000 | $110,000 – $138,000 |
Climate in Topeka: timing your home addition job
We use NOAA's 1991-2020 climate normals for Topeka Muni Ap (5 miles from the city center). These are 30-year monthly averages, not forecasts.
March through June and August through November are the stretches where digging, grading and setting material in the ground runs into the fewest weather problems in Topeka (8 of 12 months). January, February and December have an average overnight low at or below freezing (32°F); July has an average daytime high of 90°F or more.
In January, February and December the average low is at or below freezing, which means frozen ground and slower digging, compaction and sod or stone placement. NOAA counts about 114 days a year with a low at or below 32°F at this station.
Topeka gets about 37 inches of precipitation in a normal year, including roughly 17 inches of snow. The wettest months are May, June and August (5.2 inches in May). Inside the workable window, March and November are the driest, at 2.3 and 1.8 inches. The station averages about 50 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 | 40 | 20 | 0.9 | Cold |
| Feb | 46 | 24 | 1.3 | Cold |
| Mar | 57 | 34 | 2.3 | Workable |
| Apr | 67 | 44 | 3.8 | Workable |
| May | 76 | 55 | 5.2 | Workable |
| Jun | 86 | 65 | 4.9 | Workable |
| Jul | 90 | 69 | 4.0 | Hot |
| Aug | 89 | 67 | 4.5 | Workable |
| Sep | 81 | 58 | 3.5 | Workable |
| Oct | 69 | 45 | 2.9 | Workable |
| Nov | 55 | 33 | 1.8 | Workable |
| Dec | 44 | 24 | 1.5 | Cold |
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 $45,100 to $59,200 for Topeka, KS is attached.
Detailed home addition report for Topeka, KS, $9
The report lays out the home addition numbers for Topeka, KS 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 Topeka: your questions
+How much does it cost to build a home addition in Topeka?
For 300 sq ft, expect $34,400 to $69,800 in the Topeka area. A standard-spec job lands at $45,100 to $59,200. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for home addition in Topeka?
About $113 to $227 per sq ft for materials and labor, plus $440 to $1,800 for the permit if one is needed. The US range is $125 to $250.
+Is home addition cheaper in Topeka or Kansas City?
Kansas City is 75 miles away. The midpoint for 300 sq ft there is $58,100, which is 11% more than Topeka ($52,100). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Topeka?
About 65% at the midpoint, or $34,100 out of $52,100. Materials are 32% and permits 2%. Nationally, labor is 67%.
+What would 20x20 room (400 sq ft) cost in Topeka?
$45,800 to $92,500. Pick a different size in the estimator above to get your own number.
+Does home addition need a permit in Topeka?
Often, but rules are set by your city or county building office, so call before you hire. Budget $440 to $1,800 for fees in the Topeka area (our national range of $500 to $2,000 scaled by the local price level).
+Is Topeka expensive for home addition compared with the rest of Kansas?
Topeka is 2% below the Kansas statewide estimate ($53,300 at the midpoint). We cover 2 metros in Kansas; see the state page to compare them.
+What do carpenters earn in Topeka?
The BLS median is $24.62 an hour in the Topeka area, compared with $29.12 nationally. The 25th to 75th percentile range is $22.76 to $29.63.
+What do basic and premium home addition work cost in Topeka?
For 300 sq ft, basic work runs $34,400 to $48,600 and premium work $55,700 to $69,800. 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 Topeka?
Based on NOAA 1991-2020 normals, the comfortable months for this kind of work are March through June and August through November. March and November 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 Topeka
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.