Home addition cost in Kansas
Statewide estimate from BLS wages and BEA prices. Reviewed Nov 4, 2026.
- Statewide range (300 sq ft)
- $35,200 – $71,300
- Per sq ft
- $116 – $232
- before permit
- Versus US midpoint
- −7%
- US $57,500
- Metros covered
- 2
Kansas prices for home addition: $35,200 to $71,300 for 300 sq ft, or $116 to $232 per sq ft without the permit. The state midpoint is 7% below the national one. Local wages for carpenters are $27.39 an hour.
Inside Kansas, the metros we cover range from $51,300 (Wichita) to $52,100 (Topeka) at the midpoint.
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Estimated cost for 300 sq ft in Kansas (statewide), standard level
$46,100 to $60,500
About $151 to $197 per sq ft before permits. Labor is about 66% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $14,700 | $19,200 |
| Labor | $30,500 | $39,900 |
| Permits and fees | $860 | $1,400 |
| Total | $46,100 | $60,500 |
Cost breakdown for 300 sq ft in Kansas
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $11,300 | $16,900 | $22,600 | 32% |
| Labor | $23,500 | $35,200 | $47,000 | 66% |
| Permits and fees | $450 | $1,150 | $1,800 | 2% |
| Total | $35,200 | $53,300 | $71,300 | 100% |
Wages behind the Kansas number
Statewide wages come from BLS's state-level estimates, which blend big cities with small towns and rural areas. 6 trades drive the labor line for this job, and the weighted ratio against the national wage level is 0.92 for Kansas.
For carpenters (47-2031, weighted 50%) the local median is $27.39 an hour, which is 6% below the national $29.12. The middle half of them earn between $22.99 and $32.08 an hour. BLS counts 5,210 of them working in the state, 36.2 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 $25.06 an hour, which is 9% below the national $27.41. The middle half of them earn between $22.15 and $30.10 an hour. BLS counts 3,610 of them working in the state, 25.1 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 $31.66 an hour, 4% above the US median of $30.38. The middle half of them earn between $24.67 and $38.73 an hour. About 6,350 work in the state. That is 44.2 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 $31.36 an hour, which is in line with the national $30.67. The middle half of them earn between $23.67 and $40.80 an hour. BLS counts 4,590 of them working in the state, 31.9 for every 10,000 jobs (US: 30.0), so the local bench is about average.
Drywall and ceiling tile installers (47-2081), 10% of the weighting: a median of $19.18 an hour, 32% below the US median of $28.33. The middle half of them earn between $17.25 and $26.89 an hour. About 650 work in the state. That is 4.5 per 10,000 jobs, compared with 5.3 nationally, so expect fewer local crews to bid.
For roofers (47-2181, weighted 10%) the local median is $22.69 an hour, which is 15% below the national $26.65. The middle half of them earn between $21.23 and $29.48 an hour. BLS counts 900 of them working in the state, 6.3 for every 10,000 jobs (US: 8.7), so the local bench is thinner than average.
A crew paid at the 75th percentile for carpenters ($32.08 an hour) would add about $3,100 to the statewide midpoint; one at the 25th percentile ($22.99) would take off about $2,900. Use that as a rough guide to how far a bid can sit from our midpoint on wages alone.
BLS counts 1,437,520 jobs across Kansas (May 2025), which is 0.9% of US employment.
| Trade | Weight | 25th pct | Median | 75th pct | US median | Ratio | Level used |
|---|---|---|---|---|---|---|---|
| Carpenters (47-2031) | 50% | $22.99 | $27.39 | $32.08 | $29.12 | 0.94 | state |
| Cement masons and concrete finishers (47-2051) | 10% | $22.15 | $25.06 | $30.10 | $27.41 | 0.91 | state |
| Electricians (47-2111) | 10% | $24.67 | $31.66 | $38.73 | $30.38 | 1.04 | state |
| Plumbers, pipefitters and steamfitters (47-2152) | 10% | $23.67 | $31.36 | $40.80 | $30.67 | 1.02 | state |
| Drywall and ceiling tile installers (47-2081) | 10% | $17.25 | $19.18 | $26.89 | $28.33 | 0.68 | state |
| Roofers (47-2181) | 10% | $21.23 | $22.69 | $29.48 | $26.65 | 0.85 | state |
| Blended | 100% | 0.92 | |||||
Quality levels and sizes in Kansas
The cited range is cut into three overlapping bands (basic, standard and premium) and scaled to statewide Kansas wages and prices. The grid prices the same bands at 3 common sizes.
Basic
$35,200 to $49,700
Bump-out or simple room without plumbing
Standard
$46,100 to $60,500
Standard room addition with HVAC and electrical
Premium
$56,900 to $71,300
Large addition with bath or kitchen and a new foundation
| Size | Basic | Standard | Premium |
|---|---|---|---|
| bump-out (100 sq ft) | $12,000 – $17,200 | $15,900 – $21,100 | $19,800 – $25,000 |
| 20x20 room (400 sq ft) | $46,800 – $65,900 | $61,100 – $80,200 | $75,400 – $94,500 |
| large suite (600 sq ft) | $70,000 – $98,300 | $91,300 – $119,500 | $112,500 – $141,000 |
If you are planning more than one job in Kansas
The table prices neighboring jobs at their usual sizes using statewide Kansas wages and prices. Against national midpoints, bathroom remodel comes out highest (−5%) and roof replacement lowest (−11%), because each job leans on different trades.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Kitchen remodel | 120 sq ft | $17,400 – $29,600 | −6% |
| Bathroom remodel | 45 sq ft | $4,450 – $22,100 | −5% |
| Detached garage | 576 sq ft | $27,200 – $54,600 | −6% |
| Roof replacement | 2,000 sq ft of roof | $5,400 – $11,200 | −11% |
Weather windows across Kansas
Season matters for home addition. For each Kansas metro below we took NOAA's 1991-2020 monthly normals from the nearest suitable station and counted comfortable months for digging and ground work.
Topeka has the longest comfortable season of the metros we cover in Kansas at 8 months (March through June and August through November); Wichita has the shortest at 7 (March through June and September through November). Rainfall runs from 34 inches a year in Wichita to 37 inches in Topeka.
We do not adjust prices by month, because we have no reliable published data on seasonal pricing. Timing is still worth raising when you collect bids.
| Metro | Jan avg low °F | Jul avg high °F | Precip (in/yr) | Comfortable months |
|---|---|---|---|---|
| Wichita | 23 | 93 | 34 | 7: March through June and September through November |
| Topeka | 20 | 90 | 37 | 8: March through June and August through November |
Kansas versus the states around it
Kansas ranks 34 of 51 (the 50 states plus DC) for home addition, where 1 is the most expensive. The costliest is Hawaii at $76,300 and the cheapest Arkansas at $48,200, both for 300 sq ft at the midpoint. Kansas sits at $53,300. The five states closest by workforce center are listed below.
| State | Distance | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Oklahoma | 160 miles away | $32,400 – $65,700 | $49,000 | −8% |
| Nebraska | 220 miles away | $33,700 – $68,300 | $51,000 | −4% |
| Missouri | 250 miles away | $37,800 – $76,500 | $57,200 | +7% |
| Arkansas | 280 miles away | $31,800 – $64,500 | $48,200 | −10% |
| Iowa | 340 miles away | $35,900 – $72,700 | $54,300 | +2% |
Home addition cost by metro in Kansas
0 of the 2 metros sit above the statewide midpoint of $53,300, and the top-to-bottom gap is 2%. Each row prices the default size with that metro's own BLS wages and BEA price levels, so the gap between rows is real local variation rather than a flat markup.
| Metro | Range (300 sq ft) | Midpoint | vs. state |
|---|---|---|---|
| Topeka, KS | $34,400 – $69,800 | $52,100 | −2% |
| Wichita, KS | $33,900 – $68,700 | $51,300 | −4% |
Home addition: what moves the price in Kansas
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).
Foundation
A foundation, framing, roofing and matching exterior finishes all have to be built before the interior work starts.
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Home addition in Kansas: your questions
+How much does it cost to build a home addition in Kansas?
$35,200 to $71,300 for 300 sq ft, using statewide wages and prices. Metro areas inside Kansas can sit above or below that.
+Which city in Kansas is cheapest for home addition?
Wichita at about $51,300 (midpoint, 300 sq ft). The priciest is Topeka at $52,100.
+Is home addition cheaper in Kansas than the US average?
It is 7% cheaper: $53,300 against $57,500 for 300 sq ft at the midpoint.
+What share of the price is labor in Kansas?
About 66% ($35,200). Materials are 32%. Statewide labor for this job is weighted 0.92x the national wage level.
+What do carpenters earn in Kansas?
The BLS statewide median is $27.39 an hour, against $29.12 for the US. The 25th to 75th percentile range is $22.99 to $32.08.
+Where does Kansas rank for home addition costs?
34th most expensive of 51 (the 50 states plus DC) at the midpoint, $53,300 for 300 sq ft. Rank 1 is the costliest.
+What do basic and premium home addition work cost in Kansas?
For 300 sq ft, basic work runs $35,200 to $49,700 and premium work $56,900 to $71,300. Basic means: bump-out or simple room without plumbing. Premium means: large addition with bath or kitchen and a new foundation.
+Does the season matter for home addition in Kansas?
Yes where winters or summers are hard. Of the Kansas metros we cover, Topeka has the most comfortable months (8 of 12) based on NOAA 1991-2020 normals. Our prices do not change by month, so ask contractors whether they charge more or less in busy and slow seasons.
Home addition by city in Kansas
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.