Home addition cost in Dubuque, IA
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (300 sq ft)
- $36,400 – $73,600
- Per sq ft
- $120 – $239
- before permit
- Versus US midpoint
- −4%
- US $57,500
- Rank of 300 metros
- #146
- 1 = most expensive
Local price for a home addition in the Dubuque area: $36,400 to $73,600 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 runs 4% lower than the US figure. Carpenters earn a median of $28.89 an hour in the Dubuque area, 1% below the US median of $29.12.
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Estimated cost for 300 sq ft in Dubuque, IA, standard level
$47,500 to $62,400
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 | $32,100 | $41,900 |
| Permits and fees | $830 | $1,350 |
| Total | $47,500 | $62,400 |
Cost breakdown for 300 sq ft in Dubuque, IA
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $11,200 | $16,900 | $22,500 | 31% |
| Labor | $24,700 | $37,000 | $49,300 | 67% |
| Permits and fees | $440 | $1,100 | $1,750 | 2% |
| Total | $36,400 | $55,000 | $73,600 | 100% |
Where the Dubuque 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, Dubuque wages are 0.97 times the national level. Labor makes up about 67% of the midpoint estimate (67% at national prices).
Materials are scaled with BEA's regional price parity for goods. Dubuque 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 87.3: $440 to $1,750.
Data note: 20% of the labor weighting for this project uses a statewide median because BLS has no published metro figure for that trade in Dubuque. The wage table below marks each row.
What nearby projects cost in Dubuque
Jobs that often go together with home addition are priced below at their usual sizes, using the same Dubuque wage and price inputs. Compared with national midpoints, detached garage comes out highest (−4%) and roof replacement lowest (−9%); the gap comes from the trades each job uses.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Kitchen remodel | 120 sq ft | $17,400 – $29,600 | −6% |
| Bathroom remodel | 45 sq ft | $4,450 – $22,100 | −5% |
| Detached garage | 576 sq ft | $27,900 – $56,000 | −4% |
| Roof replacement | 2,000 sq ft of roof | $5,550 – $11,400 | −9% |
Specs and site conditions that change a Dubuque bid
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.
How Dubuque compares
Same job, same size (300 sq ft), priced for the nearest metros. Madison is the priciest of the group at $60,700. Iowa City is the cheapest at $51,600.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Dubuque, IAthis page | $36,400 – $73,600 | $55,000 | |
| Cedar Rapids, IA45 miles | $36,500 – $73,800 | $55,100 | level |
| Iowa City, IA75 miles | $34,100 – $69,000 | $51,600 | −6% |
| Davenport, IA75 miles | $38,000 – $77,000 | $57,500 | +5% |
| Madison, WI80 miles | $40,200 – $81,300 | $60,700 | +11% |
| Waterloo, IA80 miles | $35,600 – $72,000 | $53,800 | −2% |
| Iowa (statewide) | $35,900 – $72,700 | $54,300 | −1% |
| United States | $38,000 – $77,000 | $57,500 | +5% |
Out of the 300 metros we cover, Dubuque ranks #146 for the cost of this job (#1 is the most expensive). Statewide, Dubuque is 1% 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 | +3% |
| Davenport, IA | 180,450 jobs | $38,000 – $77,000 | $57,500 | +5% |
| Cedar Rapids, IA | 139,260 jobs | $36,500 – $73,800 | $55,100 | level |
| 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 | −4% |
Metros of a similar size
Big cities and small ones price differently, so here is Dubuque against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Altoona, PA | 58,650 jobs | $36,500 – $73,900 | $55,200 | level |
| Albany, GA | 58,390 jobs | $30,600 – $62,100 | $46,300 | −16% |
| Kingston, NY | 59,140 jobs | $39,200 – $79,400 | $59,300 | +8% |
| Wheeling, WV | 58,130 jobs | $36,100 – $73,100 | $54,600 | −1% |
Who does the work: Dubuque 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 Dubuque the blend is 0.97.
Carpenters (47-2031), 50% of the weighting: a median of $28.89 an hour, in line with the US median of $29.12. The middle half of them earn between $23.41 and $30.47 an hour. About 260 work in the metro. That is 44.5 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 $28.08 an hour, in line with the US median of $27.41. The middle half of them earn between $25.83 and $29.82 an hour. About 110 work in the metro. That is 18.8 per 10,000 jobs, compared with 13.3 nationally, which suggests plenty of local crews to bid.
For electricians (47-2111, weighted 10%) the local median is $29.86 an hour, which is in line with the national $30.38. The middle half of them earn between $22.96 and $38.68 an hour. BLS counts 210 of them working in the area, 35.9 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 $29.51 an hour, 4% below the US median of $30.67. The middle half of them earn between $23.70 and $39.45 an hour. About 120 work in the metro. That is 20.5 per 10,000 jobs, compared with 30.0 nationally, so expect fewer 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 Dubuque 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) carry 10% of the labor weighting. BLS does not publish this trade for the Dubuque metro, so we used the Iowa statewide median: $23.39 an hour against $26.65 for the US. The middle half of them earn between $22.31 and $29.50 an hour.
A quick sensitivity check: moving the lead trade (carpenters) from the median to the 75th percentile wage adds about $1,050 to the midpoint estimate; the 25th percentile takes off about $3,600. That is a swing of roughly 6.5% to 1.9% of the total, which is useful for judging whether a bid reflects wages or something else, such as scope or margin.
Dubuque has 58,470 jobs in total (BLS, May 2025), ranking 292nd 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% | $23.41 | $28.89 | $30.47 | $29.12 | 0.99 | metro |
| Cement masons and concrete finishers (47-2051) | 10% | $25.83 | $28.08 | $29.82 | $27.41 | 1.02 | metro |
| Electricians (47-2111) | 10% | $22.96 | $29.86 | $38.68 | $30.38 | 0.98 | metro |
| Plumbers, pipefitters and steamfitters (47-2152) | 10% | $23.70 | $29.51 | $39.45 | $30.67 | 0.96 | metro |
| Drywall and ceiling tile installers (47-2081) | 10% | $21.54 | $24.53 | $29.70 | $28.33 | 0.87 | state |
| Roofers (47-2181) | 10% | $22.31 | $23.39 | $29.50 | $26.65 | 0.88 | state |
| Blended | 100% | 0.97 | |||||
Pick a size, pick a tier: home addition pricing in Dubuque
The cited range is split into basic, standard and premium bands, then scaled to Dubuque. 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
$36,400 to $51,200
Bump-out or simple room without plumbing
Standard
$47,500 to $62,400
Standard room addition with HVAC and electrical
Premium
$58,700 to $73,600
Large addition with bath or kitchen and a new foundation
| Size | Basic | Standard | Premium |
|---|---|---|---|
| bump-out (100 sq ft) | $12,400 – $17,700 | $16,400 – $21,700 | $20,400 – $25,700 |
| 20x20 room (400 sq ft) | $48,300 – $68,000 | $63,100 – $82,800 | $77,800 – $97,500 |
| large suite (600 sq ft) | $72,300 – $101,500 | $94,200 – $123,500 | $116,000 – $145,500 |
The best months for home addition in Dubuque
Climate numbers on this page come from NOAA's 1991-2020 U.S. Climate Normals at the nearest suitable station, Dubuque Rgnl 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 Dubuque 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.
Dubuque gets about 38 inches of precipitation in a normal year, including roughly 43 inches of snow. The wettest months are May, June and July (5.2 inches in June). Inside the workable window, September and October are the driest, at 3.8 and 2.9 inches. The station averages about 6 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 | 27 | 11 | 1.3 | Cold |
| Feb | 31 | 15 | 1.6 | Cold |
| Mar | 44 | 26 | 2.3 | Cold |
| Apr | 58 | 37 | 4.1 | Workable |
| May | 69 | 49 | 4.3 | Workable |
| Jun | 79 | 59 | 5.2 | Workable |
| Jul | 82 | 62 | 4.8 | Workable |
| Aug | 80 | 60 | 4.0 | Workable |
| Sep | 73 | 52 | 3.8 | Workable |
| Oct | 60 | 40 | 2.9 | Workable |
| Nov | 45 | 28 | 2.2 | Cold |
| Dec | 32 | 17 | 1.8 | Cold |
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Home addition in Dubuque: your questions
+How much does it cost to build a home addition in Dubuque?
For 300 sq ft, expect $36,400 to $73,600 in the Dubuque area. A standard-spec job lands at $47,500 to $62,400. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for home addition in Dubuque?
About $120 to $239 per sq ft for materials and labor, plus $440 to $1,750 for the permit if one is needed. The US range is $125 to $250.
+Is home addition cheaper in Dubuque or Cedar Rapids?
Cedar Rapids is 45 miles away. The midpoint for 300 sq ft there is $55,100, which is 0% more than Dubuque ($55,000). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Dubuque?
About 67% at the midpoint, or $37,000 out of $55,000. Materials are 31% and permits 2%. Nationally, labor is 67%.
+What would 20x20 room (400 sq ft) cost in Dubuque?
$48,300 to $97,500. Pick a different size in the estimator above to get your own number.
+Does home addition need a permit in Dubuque?
Often, but rules are set by your city or county building office, so call before you hire. Budget $440 to $1,750 for fees in the Dubuque area (our national range of $500 to $2,000 scaled by the local price level).
+Is Dubuque expensive for home addition compared with the rest of Iowa?
Dubuque is 1% 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 Dubuque?
The BLS median is $28.89 an hour in the Dubuque area, compared with $29.12 nationally. The 25th to 75th percentile range is $23.41 to $30.47.
+What do basic and premium home addition work cost in Dubuque?
For 300 sq ft, basic work runs $36,400 to $51,200 and premium work $58,700 to $73,600. 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 Dubuque?
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 Dubuque
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.