Home addition cost in La Crosse, WI
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (300 sq ft)
- $38,400 – $77,800
- Per sq ft
- $127 – $253
- before permit
- Versus US midpoint
- +1%
- US $57,500
- Rank of 300 metros
- #106
- 1 = most expensive
Local price for a home addition in the La Crosse area: $38,400 to $77,800 for 300 sq ft. The low end is a basic job on easy ground; the high end is a premium spec with harder access. The midpoint lands close to the US figure. Carpenters earn a median of $28.34 an hour in the La Crosse area, 3% below the US median of $29.12.
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Estimated cost for 300 sq ft in La Crosse, WI, standard level
$50,200 to $66,000
About $165 to $215 per sq ft before permits. Labor is about 69% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $14,600 | $19,100 |
| Labor | $34,700 | $45,400 |
| Permits and fees | $870 | $1,400 |
| Total | $50,200 | $66,000 |
Cost breakdown for 300 sq ft in La Crosse, WI
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $11,300 | $16,900 | $22,500 | 29% |
| Labor | $26,700 | $40,100 | $53,400 | 69% |
| Permits and fees | $460 | $1,150 | $1,850 | 2% |
| Total | $38,400 | $58,100 | $77,800 | 100% |
Where the La Crosse price comes from
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, La Crosse wages are 1.05 times the national level. Labor makes up about 69% of the midpoint estimate (67% at national prices).
Materials are scaled with BEA's regional price parity for goods. La Crosse is at 93.8 against 100 for the US, so a materials line of $18,000 nationally becomes $16,900 here (midpoint, 300 sq ft). Permits follow the all-items index of 91.8: $460 to $1,850.
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 La Crosse. The wage table below marks each row.
Is La Crosse cheap or dear? The local comparison
Contractors rarely work more than an hour or two from home, so the neighboring metros set a rough ceiling and floor for your quotes. Midpoints for 300 sq ft range from $53,800 to $61,400 across La Crosse and its five closest metros.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| La Crosse, WIthis page | $38,400 – $77,800 | $58,100 | |
| Rochester, MN65 miles | $40,600 – $82,200 | $61,400 | +6% |
| Dubuque, IA85 miles | $36,400 – $73,600 | $55,000 | −5% |
| Eau Claire, WI85 miles | $38,600 – $78,000 | $58,300 | level |
| Madison, WI85 miles | $40,200 – $81,300 | $60,700 | +5% |
| Waterloo, IA105 miles | $35,600 – $72,000 | $53,800 | −7% |
| Wisconsin (statewide) | $39,300 – $79,500 | $59,400 | +2% |
| United States | $38,000 – $77,000 | $57,500 | −1% |
Out of the 300 metros we cover, La Crosse ranks #106 for the cost of this job (#1 is the most expensive). Statewide, La Crosse is 2% below the Wisconsin figure.
Elsewhere in Wisconsin
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Milwaukee, WI | 820,780 jobs | $40,500 – $81,900 | $61,200 | +5% |
| Madison, WI | 408,070 jobs | $40,200 – $81,300 | $60,700 | +5% |
| Green Bay, WI | 174,550 jobs | $39,400 – $79,600 | $59,500 | +2% |
| Appleton, WI | 124,230 jobs | $39,800 – $80,400 | $60,100 | +3% |
| Oshkosh, WI | 93,750 jobs | $44,700 – $90,300 | $67,500 | +16% |
| Eau Claire, WI | 86,060 jobs | $38,600 – $78,000 | $58,300 | level |
Metros of a similar size
Big cities and small ones price differently, so here is La Crosse against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Jackson, TN | 84,530 jobs | $32,700 – $66,300 | $49,500 | −15% |
| Waterloo, IA | 84,260 jobs | $35,600 – $72,000 | $53,800 | −7% |
| Eau Claire, WI | 86,060 jobs | $38,600 – $78,000 | $58,300 | level |
| Houma, LA | 83,440 jobs | $32,800 – $66,500 | $49,700 | −14% |
The best months for home addition in La Crosse
Climate numbers on this page come from NOAA's 1991-2020 U.S. Climate Normals at the nearest suitable station, La Crosse Wfo (5 miles from the city center). They are 30-year averages, so any one year can run hotter, colder or wetter.
For digging, grading and setting material in the ground, the comfortable months in La Crosse are April through October: 7 of 12. Outside them, January, February, March, November and December have an average overnight low at or below freezing (32°F).
In January, February, March, November 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 148 days a year with a low at or below 32°F at this station.
La Crosse gets about 37 inches of precipitation in a normal year, including roughly 54 inches of snow. The wettest months are May, June and August (5.3 inches in June). Inside the workable window, September and October are the driest, at 4.0 and 2.9 inches. The station averages about 3 days a year at 90°F or above.
We do not adjust the estimate by month, because we have no reliable published data on seasonal pricing. It is still worth asking contractors whether an off-peak start date changes their bid.
| Month | Avg high °F | Avg low °F | Precip (in) | For this job |
|---|---|---|---|---|
| Jan | 24 | 8 | 1.1 | Cold |
| Feb | 29 | 13 | 1.1 | Cold |
| Mar | 41 | 24 | 1.9 | Cold |
| Apr | 55 | 36 | 4.0 | Workable |
| May | 67 | 48 | 4.9 | Workable |
| Jun | 76 | 58 | 5.3 | Workable |
| Jul | 80 | 62 | 4.3 | Workable |
| Aug | 78 | 60 | 4.5 | Workable |
| Sep | 71 | 52 | 4.0 | Workable |
| Oct | 58 | 40 | 2.9 | Workable |
| Nov | 42 | 28 | 1.9 | Cold |
| Dec | 29 | 15 | 1.5 | Cold |
Home addition: what moves the price in La Crosse
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).
Plumbing and fixtures
Adding a bathroom or kitchen drives the price up the most.
Pick a size, pick a tier: home addition pricing in La Crosse
The cited range is split into basic, standard and premium bands, then scaled to La Crosse. Bands overlap, because plenty of standard jobs cost as much as a light premium one. Sizes run from bump-out (100 sq ft) to large suite (600 sq ft).
Basic
$38,400 to $54,200
Bump-out or simple room without plumbing
Standard
$50,200 to $66,000
Standard room addition with HVAC and electrical
Premium
$62,000 to $77,800
Large addition with bath or kitchen and a new foundation
| Size | Basic | Standard | Premium |
|---|---|---|---|
| bump-out (100 sq ft) | $13,100 – $18,700 | $17,300 – $22,900 | $21,500 – $27,100 |
| 20x20 room (400 sq ft) | $51,100 – $71,900 | $66,700 – $87,500 | $82,300 – $103,000 |
| large suite (600 sq ft) | $76,400 – $107,500 | $99,600 – $130,500 | $123,000 – $153,500 |
What nearby projects cost in La Crosse
Jobs that often go together with home addition are priced below at their usual sizes, using the same La Crosse wage and price inputs. Compared with national midpoints, roof replacement comes out highest (+4%) and kitchen remodel lowest (−4%); the gap comes from the trades each job uses.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Kitchen remodel | 120 sq ft | $17,900 – $30,400 | −4% |
| Bathroom remodel | 45 sq ft | $4,850 – $24,100 | +3% |
| Detached garage | 576 sq ft | $29,200 – $58,600 | +1% |
| Roof replacement | 2,000 sq ft of roof | $6,400 – $12,800 | +4% |
Who does the work: La Crosse trade wages
The labor line is built from BLS wage data, one trade at a time. This job draws on 6 trades. We compare each trade's local median with the US median, weight the ratios by how much of the job each trade does, and apply the blend to the national labor cost. For La Crosse the blend is 1.05.
Carpenters (47-2031), 50% of the weighting: a median of $28.34 an hour, in line with the US median of $29.12. The middle half of them earn between $23.93 and $36.95 an hour. About 450 work in the metro. That is 53.3 per 10,000 jobs, compared with 43.1 nationally, which suggests plenty of local crews to bid.
Cement masons and concrete finishers (47-2051), 10% of the weighting: a median of $29.26 an hour, 7% above the US median of $27.41. The middle half of them earn between $25.00 and $33.93 an hour. About 120 work in the metro. That is 14.2 per 10,000 jobs, compared with 13.3 nationally, so the supply of crews looks typical.
For electricians (47-2111, weighted 10%) the local median is $37.87 an hour, which is 25% above the national $30.38. The middle half of them earn between $29.32 and $45.60 an hour. BLS counts 320 of them working in the area, 37.9 for every 10,000 jobs (US: 48.7), so the local bench is thinner than average.
Plumbers, pipefitters and steamfitters (47-2152), 10% of the weighting: a median of $39.72 an hour, 30% above the US median of $30.67. The middle half of them earn between $29.32 and $47.12 an hour. About 280 work in the metro. That is 33.2 per 10,000 jobs, compared with 30.0 nationally, so the supply of crews looks typical.
For drywall and ceiling tile installers (47-2081, weighted 10%) the local median is $26.36 an hour, which is 7% below the national $28.33. The middle half of them earn between $18.81 and $30.43 an hour. BLS counts 30 of them working in the area, 3.6 for every 10,000 jobs (US: 5.3), so the local bench is thinner than average.
Roofers (47-2181) carry 10% of the labor weighting. BLS does not publish this trade for the La Crosse metro, so we used the Wisconsin statewide median: $28.54 an hour against $26.65 for the US. The middle half of them earn between $23.01 and $31.41 an hour.
A quick sensitivity check: moving the lead trade (carpenters) from the median to the 75th percentile wage adds about $5,650 to the midpoint estimate; the 25th percentile takes off about $2,900. That is a swing of roughly 5.0% to 9.7% of the total, which is useful for judging whether a bid reflects wages or something else, such as scope or margin.
La Crosse-Onalaska has 84,380 jobs in total (BLS, May 2025), ranking 228th by size among the 300 metros on this site.
| Trade | Weight | 25th pct | Median | 75th pct | US median | Ratio | Level used |
|---|---|---|---|---|---|---|---|
| Carpenters (47-2031) | 50% | $23.93 | $28.34 | $36.95 | $29.12 | 0.97 | metro |
| Cement masons and concrete finishers (47-2051) | 10% | $25.00 | $29.26 | $33.93 | $27.41 | 1.07 | metro |
| Electricians (47-2111) | 10% | $29.32 | $37.87 | $45.60 | $30.38 | 1.25 | metro |
| Plumbers, pipefitters and steamfitters (47-2152) | 10% | $29.32 | $39.72 | $47.12 | $30.67 | 1.30 | metro |
| Drywall and ceiling tile installers (47-2081) | 10% | $18.81 | $26.36 | $30.43 | $28.33 | 0.93 | metro |
| Roofers (47-2181) | 10% | $23.01 | $28.54 | $31.41 | $26.65 | 1.07 | state |
| Blended | 100% | 1.05 | |||||
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Home addition in La Crosse: your questions
+How much does it cost to build a home addition in La Crosse?
For 300 sq ft, expect $38,400 to $77,800 in the La Crosse area. A standard-spec job lands at $50,200 to $66,000. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for home addition in La Crosse?
About $127 to $253 per sq ft for materials and labor, plus $460 to $1,850 for the permit if one is needed. The US range is $125 to $250.
+Is home addition cheaper in La Crosse or Rochester?
Rochester is 65 miles away. The midpoint for 300 sq ft there is $61,400, which is 6% more than La Crosse ($58,100). Wage and materials indexes both feed that gap.
+How much of the bill is labor in La Crosse?
About 69% at the midpoint, or $40,100 out of $58,100. Materials are 29% and permits 2%. Nationally, labor is 67%.
+What would 20x20 room (400 sq ft) cost in La Crosse?
$51,100 to $103,000. Pick a different size in the estimator above to get your own number.
+Does home addition need a permit in La Crosse?
Often, but rules are set by your city or county building office, so call before you hire. Budget $460 to $1,850 for fees in the La Crosse area (our national range of $500 to $2,000 scaled by the local price level).
+Is La Crosse expensive for home addition compared with the rest of Wisconsin?
La Crosse is 2% below the Wisconsin statewide estimate ($59,400 at the midpoint). We cover 12 metros in Wisconsin; see the state page to compare them.
+What do carpenters earn in La Crosse?
The BLS median is $28.34 an hour in the La Crosse area, compared with $29.12 nationally. The 25th to 75th percentile range is $23.93 to $36.95.
+What do basic and premium home addition work cost in La Crosse?
For 300 sq ft, basic work runs $38,400 to $54,200 and premium work $62,000 to $77,800. 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 La Crosse?
Based on NOAA 1991-2020 normals, the comfortable months for this kind of work are April through October. September and October 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 La Crosse
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.