Home addition cost in Indiana
Statewide estimate from BLS wages and BEA prices. Reviewed Nov 4, 2026.
- Statewide range (300 sq ft)
- $38,500 – $78,000
- Per sq ft
- $127 – $254
- before permit
- Versus US midpoint
- +1%
- US $57,500
- Metros covered
- 8
What does it cost to build a home addition in Indiana? Plan on $38,500 to $78,000 for 300 sq ft. Wages (1.04x the US blend), materials (price index 95.5) and permit costs (93.3) put the state above the national midpoint by 1%.
Inside Indiana, the metros we cover range from $56,700 (Lafayette) to $59,700 (Evansville) at the midpoint. Pick your closest city in the table for a tighter number.
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Estimated cost for 300 sq ft in Indiana (statewide), standard level
$50,400 to $66,200
About $165 to $216 per sq ft before permits. Labor is about 69% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $14,900 | $19,500 |
| Labor | $34,600 | $45,200 |
| Permits and fees | $890 | $1,450 |
| Total | $50,400 | $66,200 |
Cost breakdown for 300 sq ft in Indiana
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $11,500 | $17,200 | $22,900 | 29% |
| Labor | $26,600 | $39,900 | $53,200 | 69% |
| Permits and fees | $470 | $1,150 | $1,850 | 2% |
| Total | $38,500 | $58,300 | $78,000 | 100% |
Indiana metro-by-metro prices
2 of the 8 metros sit above the statewide midpoint of $58,300, and the top-to-bottom gap is 5%. 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 |
|---|---|---|---|
| Evansville, IN | $39,500 – $79,800 | $59,700 | +2% |
| Indianapolis, IN | $39,000 – $79,000 | $59,000 | +1% |
| Bloomington, IN | $38,600 – $78,200 | $58,400 | level |
| South Bend, IN | $38,400 – $77,700 | $58,100 | level |
| Terre Haute, IN | $38,400 – $77,600 | $58,000 | level |
| Elkhart, IN | $38,200 – $77,200 | $57,700 | −1% |
| Fort Wayne, IN | $37,600 – $76,000 | $56,800 | −3% |
| Lafayette, IN | $37,500 – $75,900 | $56,700 | −3% |
If you are planning more than one job in Indiana
Each project weights the trades differently, so Indiana's wage level does not push every price by the same amount. Compared with the US midpoint, roof replacement is +1% and kitchen remodel −3%.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Kitchen remodel | 120 sq ft | $17,900 – $30,500 | −3% |
| Bathroom remodel | 45 sq ft | $4,650 – $23,000 | −1% |
| Detached garage | 576 sq ft | $29,100 – $58,300 | level |
| Roof replacement | 2,000 sq ft of roof | $6,250 – $12,600 | +1% |
Weather windows across Indiana
Weather decides when digging and ground work can happen, and Indiana is not uniform. The table uses NOAA's 1991-2020 climate normals from the weather station nearest each metro we cover, and counts the months that are neither cold nor hot enough to complicate the job.
Indianapolis has the longest comfortable season of the metros we cover in Indiana at 9 months (March through November); South Bend has the shortest at 7 (April through October). Rainfall runs from 35 inches a year in Elkhart to 49 inches in Bloomington.
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 |
|---|---|---|---|---|
| Indianapolis | 21 | 85 | 44 | 9: March through November |
| Fort Wayne | 18 | 84 | 39 | 8: April through November |
| Evansville | 26 | 89 | 48 | 9: March through November |
| South Bend | 17 | 83 | 39 | 7: April through October |
| Elkhart | 18 | 83 | 35 | 8: April through November |
| Lafayette | 18 | 84 | 37 | 8: April through November |
| Bloomington | 21 | 85 | 49 | 8: April through November |
| Terre Haute | 21 | 86 | 41 | 9: March through November |
Basic, standard or premium: Indiana prices
Bands overlap on purpose, since a good standard job can cost as much as a light premium one. Below are the three bands for the default size, then a grid from bump-out (100 sq ft) to large suite (600 sq ft).
Basic
$38,500 to $54,300
Bump-out or simple room without plumbing
Standard
$50,400 to $66,200
Standard room addition with HVAC and electrical
Premium
$62,200 to $78,000
Large addition with bath or kitchen and a new foundation
| Size | Basic | Standard | Premium |
|---|---|---|---|
| bump-out (100 sq ft) | $13,200 – $18,800 | $17,400 – $23,000 | $21,600 – $27,300 |
| 20x20 room (400 sq ft) | $51,200 – $72,100 | $66,900 – $87,800 | $82,500 – $103,500 |
| large suite (600 sq ft) | $76,600 – $107,500 | $99,900 – $131,000 | $123,000 – $154,000 |
Why two Indiana quotes can differ
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.
Indiana labor market for home addition
Indiana's labor line is priced from 6 trades, each compared with its US median wage. After weighting by each trade's share of the work, the state comes out at 1.04 times the national level.
Carpenters (47-2031), 50% of the weighting: a median of $30.23 an hour, 4% above the US median of $29.12. The middle half of them earn between $24.01 and $36.95 an hour. About 15,240 work in the state. That is 47.6 per 10,000 jobs, compared with 43.1 nationally, so the supply of crews looks typical.
Cement masons and concrete finishers (47-2051), 10% of the weighting: a median of $29.46 an hour, 7% above the US median of $27.41. The middle half of them earn between $23.32 and $34.03 an hour. About 4,390 work in the state. That is 13.7 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 $32.93 an hour, which is 8% above the national $30.38. The middle half of them earn between $24.04 and $43.89 an hour. BLS counts 19,020 of them working in the state, 59.4 for every 10,000 jobs (US: 48.7), so the local bench is deeper than average.
Plumbers, pipefitters and steamfitters (47-2152), 10% of the weighting: a median of $36.69 an hour, 20% above the US median of $30.67. The middle half of them earn between $27.89 and $46.52 an hour. About 11,280 work in the state. That is 35.2 per 10,000 jobs, compared with 30.0 nationally, which suggests plenty of local crews to bid.
For drywall and ceiling tile installers (47-2081, weighted 10%) the local median is $23.95 an hour, which is 15% below the national $28.33. The middle half of them earn between $22.04 and $30.49 an hour. BLS counts 680 of them working in the state, 2.1 for every 10,000 jobs (US: 5.3), so the local bench is thinner than average.
Roofers (47-2181), 10% of the weighting: a median of $27.88 an hour, 5% above the US median of $26.65. The middle half of them earn between $21.79 and $36.64 an hour. About 2,980 work in the state. That is 9.3 per 10,000 jobs, compared with 8.7 nationally, so the supply of crews looks typical.
A crew paid at the 75th percentile for carpenters ($36.95 an hour) would add about $4,400 to the statewide midpoint; one at the 25th percentile ($24.01) would take off about $4,100. Use that as a rough guide to how far a bid can sit from our midpoint on wages alone.
BLS counts 3,201,220 jobs across Indiana (May 2025), which is 2.1% of US employment.
| Trade | Weight | 25th pct | Median | 75th pct | US median | Ratio | Level used |
|---|---|---|---|---|---|---|---|
| Carpenters (47-2031) | 50% | $24.01 | $30.23 | $36.95 | $29.12 | 1.04 | state |
| Cement masons and concrete finishers (47-2051) | 10% | $23.32 | $29.46 | $34.03 | $27.41 | 1.07 | state |
| Electricians (47-2111) | 10% | $24.04 | $32.93 | $43.89 | $30.38 | 1.08 | state |
| Plumbers, pipefitters and steamfitters (47-2152) | 10% | $27.89 | $36.69 | $46.52 | $30.67 | 1.20 | state |
| Drywall and ceiling tile installers (47-2081) | 10% | $22.04 | $23.95 | $30.49 | $28.33 | 0.85 | state |
| Roofers (47-2181) | 10% | $21.79 | $27.88 | $36.64 | $26.65 | 1.05 | state |
| Blended | 100% | 1.04 | |||||
Indiana against its neighbors
Indiana ranks 18 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. Indiana sits at $58,300. The five states closest by workforce center are listed below.
| State | Distance | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Kentucky | 140 miles away | $34,500 – $70,000 | $52,200 | −10% |
| Illinois | 140 miles away | $47,400 – $95,800 | $71,600 | +23% |
| Ohio | 180 miles away | $37,400 – $75,700 | $56,600 | −3% |
| Michigan | 220 miles away | $39,200 – $79,400 | $59,300 | +2% |
| Wisconsin | 260 miles away | $39,300 – $79,500 | $59,400 | +2% |
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Home addition in Indiana: your questions
+How much does it cost to build a home addition in Indiana?
$38,500 to $78,000 for 300 sq ft, using statewide wages and prices. Metro areas inside Indiana can sit above or below that.
+Which city in Indiana is cheapest for home addition?
Lafayette at about $56,700 (midpoint, 300 sq ft). The priciest is Evansville at $59,700.
+Is home addition cheaper in Indiana than the US average?
It is 1% more expensive: $58,300 against $57,500 for 300 sq ft at the midpoint.
+What share of the price is labor in Indiana?
About 69% ($39,900). Materials are 29%. Statewide labor for this job is weighted 1.04x the national wage level.
+What do carpenters earn in Indiana?
The BLS statewide median is $30.23 an hour, against $29.12 for the US. The 25th to 75th percentile range is $24.01 to $36.95.
+Where does Indiana rank for home addition costs?
18th most expensive of 51 (the 50 states plus DC) at the midpoint, $58,300 for 300 sq ft. Rank 1 is the costliest.
+What do basic and premium home addition work cost in Indiana?
For 300 sq ft, basic work runs $38,500 to $54,300 and premium work $62,200 to $78,000. 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 Indiana?
Yes where winters or summers are hard. Of the Indiana metros we cover, Indianapolis has the most comfortable months (9 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 Indiana
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.