Home addition cost in Cedar Rapids, IA
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (300 sq ft)
- $36,500 – $73,800
- Per sq ft
- $120 – $240
- before permit
- Versus US midpoint
- −4%
- US $57,500
- Rank of 300 metros
- #143
- 1 = most expensive
A home addition in Cedar Rapids, IA usually costs $36,500 to $73,800 for 300 sq ft. That works out to about $120 to $240 per sq ft before permits. Compared with the national midpoint that is $2,350 less. Building materials run about 6% below the US average here (BEA goods price index 93.7).
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Estimated cost for 300 sq ft in Cedar Rapids, IA, standard level
$47,700 to $62,600
About $156 to $204 per sq ft before permits. Labor is about 67% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $14,600 | $19,100 |
| Labor | $32,200 | $42,100 |
| Permits and fees | $850 | $1,400 |
| Total | $47,700 | $62,600 |
Cost breakdown for 300 sq ft in Cedar Rapids, IA
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $11,200 | $16,900 | $22,500 | 31% |
| Labor | $24,800 | $37,200 | $49,500 | 67% |
| Permits and fees | $440 | $1,100 | $1,800 | 2% |
| Total | $36,500 | $55,100 | $73,800 | 100% |
What is behind the Cedar Rapids number
The wage side of the estimate leans on carpenters, who do 50% of the hours on a typical job. Their local median is $28.33 an hour. Add the other trades involved and the blended wage index for Cedar Rapids is 0.97 (US = 1.00), which puts labor at 67% of the total.
Materials are scaled with BEA's regional price parity for goods. Cedar Rapids is at 93.7 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 89.0: $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 Cedar Rapids. The wage table below marks each row.
What local crews earn in Cedar Rapids
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 Cedar Rapids the blend is 0.97.
Carpenters (47-2031), 50% of the weighting: a median of $28.33 an hour, in line with the US median of $29.12. The middle half of them earn between $23.11 and $31.75 an hour. About 530 work in the metro. That is 38.1 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 $27.96 an hour, in line with the US median of $27.41. The middle half of them earn between $23.53 and $32.31 an hour. About 130 work in the metro. That is 9.3 per 10,000 jobs, compared with 13.3 nationally, so expect fewer local crews to bid.
For electricians (47-2111, weighted 10%) the local median is $24.15 an hour, which is 21% below the national $30.38. The middle half of them earn between $19.28 and $30.12 an hour. BLS counts 1,690 of them working in the area, 121.4 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 $40.01 an hour, 30% above the US median of $30.67. The middle half of them earn between $24.95 and $41.02 an hour. About 780 work in the metro. That is 56.0 per 10,000 jobs, compared with 30.0 nationally, which suggests plenty of local crews to bid.
Drywall and ceiling tile installers (47-2081) carry 10% of the labor weighting. BLS does not publish this trade for the Cedar Rapids metro, so we used the Iowa statewide median: $24.53 an hour against $28.33 for the US. The middle half of them earn between $21.54 and $29.70 an hour.
Roofers (47-2181), 10% of the weighting: a median of $23.00 an hour, 14% below the US median of $26.65. The middle half of them earn between $22.42 and $29.18 an hour. About 120 work in the metro. That is 8.6 per 10,000 jobs, compared with 8.7 nationally, so the supply of crews looks typical.
A quick sensitivity check: moving the lead trade (carpenters) from the median to the 75th percentile wage adds about $2,250 to the midpoint estimate; the 25th percentile takes off about $3,450. That is a swing of roughly 6.2% to 4.1% of the total, which is useful for judging whether a bid reflects wages or something else, such as scope or margin.
Cedar Rapids has 139,260 jobs in total (BLS, May 2025), ranking 160th 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% | $23.11 | $28.33 | $31.75 | $29.12 | 0.97 | metro |
| Cement masons and concrete finishers (47-2051) | 10% | $23.53 | $27.96 | $32.31 | $27.41 | 1.02 | metro |
| Electricians (47-2111) | 10% | $19.28 | $24.15 | $30.12 | $30.38 | 0.79 | metro |
| Plumbers, pipefitters and steamfitters (47-2152) | 10% | $24.95 | $40.01 | $41.02 | $30.67 | 1.30 | metro |
| Drywall and ceiling tile installers (47-2081) | 10% | $21.54 | $24.53 | $29.70 | $28.33 | 0.87 | state |
| Roofers (47-2181) | 10% | $22.42 | $23.00 | $29.18 | $26.65 | 0.86 | metro |
| Blended | 100% | 0.97 | |||||
Cost by quality level and size in Cedar Rapids
The cited range is split into basic, standard and premium bands, then scaled to Cedar Rapids. 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
$36,500 to $51,400
Bump-out or simple room without plumbing
Standard
$47,700 to $62,600
Standard room addition with HVAC and electrical
Premium
$58,900 to $73,800
Large addition with bath or kitchen and a new foundation
| Size | Basic | Standard | Premium |
|---|---|---|---|
| bump-out (100 sq ft) | $12,400 – $17,800 | $16,500 – $21,800 | $20,500 – $25,800 |
| 20x20 room (400 sq ft) | $48,500 – $68,200 | $63,300 – $83,000 | $78,100 – $97,800 |
| large suite (600 sq ft) | $72,500 – $102,000 | $94,500 – $124,000 | $116,500 – $146,000 |
How Cedar Rapids compares
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 $51,600 to $58,100 across Cedar Rapids and its five closest metros.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Cedar Rapids, IAthis page | $36,500 – $73,800 | $55,100 | |
| Iowa City, IA40 miles | $34,100 – $69,000 | $51,600 | −6% |
| Dubuque, IA45 miles | $36,400 – $73,600 | $55,000 | level |
| Waterloo, IA55 miles | $35,600 – $72,000 | $53,800 | −2% |
| Davenport, IA75 miles | $38,000 – $77,000 | $57,500 | +4% |
| La Crosse, WI115 miles | $38,400 – $77,800 | $58,100 | +5% |
| Iowa (statewide) | $35,900 – $72,700 | $54,300 | −2% |
| United States | $38,000 – $77,000 | $57,500 | +4% |
Out of the 300 metros we cover, Cedar Rapids ranks #143 for the cost of this job (#1 is the most expensive). Statewide, Cedar Rapids is 2% above the Iowa figure.
Elsewhere in Iowa
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Des Moines, IA | 404,130 jobs | $37,300 – $75,400 | $56,300 | +2% |
| Davenport, IA | 180,450 jobs | $38,000 – $77,000 | $57,500 | +4% |
| Iowa City, IA | 93,760 jobs | $34,100 – $69,000 | $51,600 | −6% |
| Waterloo, IA | 84,260 jobs | $35,600 – $72,000 | $53,800 | −2% |
| Sioux City, IA | 75,010 jobs | $34,700 – $70,300 | $52,500 | −5% |
| Dubuque, IA | 58,470 jobs | $36,400 – $73,600 | $55,000 | level |
Metros of a similar size
Big cities and small ones price differently, so here is Cedar Rapids against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Huntington, WV | 140,740 jobs | $35,600 – $72,000 | $53,800 | −2% |
| Rockford, IL | 137,650 jobs | $43,600 – $88,200 | $65,900 | +20% |
| Vallejo, CA | 144,130 jobs | $43,700 – $88,500 | $66,100 | +20% |
| Evansville, IN | 135,250 jobs | $39,500 – $79,800 | $59,700 | +8% |
Related projects, priced for Cedar Rapids
Jobs that often go together with home addition are priced below at their usual sizes, using the same Cedar Rapids wage and price inputs. Compared with national midpoints, bathroom remodel comes out highest (−2%) and roof replacement lowest (−9%); the gap comes from the trades each job uses.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Kitchen remodel | 120 sq ft | $17,500 – $29,700 | −6% |
| Bathroom remodel | 45 sq ft | $4,600 – $22,900 | −2% |
| Detached garage | 576 sq ft | $27,500 – $55,200 | −5% |
| Roof replacement | 2,000 sq ft of roof | $5,500 – $11,400 | −9% |
Cedar Rapids weather and the home addition calendar
Climate numbers on this page come from NOAA's 1991-2020 U.S. Climate Normals at the nearest suitable station, Cedar Rapids Muni Ap (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 Cedar Rapids 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 144 days a year with a low at or below 32°F at this station.
Cedar Rapids gets about 36 inches of precipitation in a normal year. The wettest months are May, June and July (5.6 inches in June). Inside the workable window, September and October are the driest, at 3.4 and 2.9 inches. The station averages about 12 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 | 28 | 11 | 0.9 | Cold |
| Feb | 33 | 16 | 1.2 | Cold |
| Mar | 46 | 27 | 2.0 | Cold |
| Apr | 60 | 38 | 3.6 | Workable |
| May | 71 | 50 | 4.3 | Workable |
| Jun | 80 | 60 | 5.6 | Workable |
| Jul | 83 | 63 | 4.4 | Workable |
| Aug | 81 | 60 | 4.1 | Workable |
| Sep | 75 | 52 | 3.4 | Workable |
| Oct | 62 | 40 | 2.9 | Workable |
| Nov | 46 | 28 | 2.0 | Cold |
| Dec | 33 | 17 | 1.6 | Cold |
Home addition: what moves the price in Cedar Rapids
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.
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 $47,700 to $62,600 for Cedar Rapids, IA is attached.
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Multi-page report for Cedar Rapids, IA: low, typical and high cost, a line-item breakdown of materials and labor by trade, permit notes, the best months to schedule, a quote comparison sheet, red flags, questions for contractors, checklists and every source. 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 Cedar Rapids: your questions
+How much does it cost to build a home addition in Cedar Rapids?
For 300 sq ft, expect $36,500 to $73,800 in the Cedar Rapids area. A standard-spec job lands at $47,700 to $62,600. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for home addition in Cedar Rapids?
About $120 to $240 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 Cedar Rapids or Iowa City?
Iowa City is 40 miles away. The midpoint for 300 sq ft there is $51,600, which is 6% less than Cedar Rapids ($55,100). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Cedar Rapids?
About 67% at the midpoint, or $37,200 out of $55,100. Materials are 31% and permits 2%. Nationally, labor is 67%.
+What would 20x20 room (400 sq ft) cost in Cedar Rapids?
$48,500 to $97,800. Pick a different size in the estimator above to get your own number.
+Does home addition need a permit in Cedar Rapids?
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 Cedar Rapids area (our national range of $500 to $2,000 scaled by the local price level).
+Is Cedar Rapids expensive for home addition compared with the rest of Iowa?
Cedar Rapids is 2% above the Iowa statewide estimate ($54,300 at the midpoint). We cover 7 metros in Iowa; see the state page to compare them.
+What do carpenters earn in Cedar Rapids?
The BLS median is $28.33 an hour in the Cedar Rapids area, compared with $29.12 nationally. The 25th to 75th percentile range is $23.11 to $31.75.
+What do basic and premium home addition work cost in Cedar Rapids?
For 300 sq ft, basic work runs $36,500 to $51,400 and premium work $58,900 to $73,800. 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 Cedar Rapids?
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 Cedar Rapids
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.