Home addition cost in Duluth, MN
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (300 sq ft)
- $40,500 – $81,800
- Per sq ft
- $133 – $267
- before permit
- Versus US midpoint
- +6%
- US $57,500
- Rank of 300 metros
- #61
- 1 = most expensive
Local price for a home addition in the Duluth area: $40,500 to $81,800 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 runs 6% higher than the US figure. Carpenters earn a median of $29.10 an hour in the Duluth area, 0% below the US median of $29.12.
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Estimated cost for 300 sq ft in Duluth, MN, standard level
$52,900 to $69,400
About $173 to $227 per sq ft before permits. Labor is about 70% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $14,900 | $19,400 |
| Labor | $37,200 | $48,600 |
| Permits and fees | $840 | $1,400 |
| Total | $52,900 | $69,400 |
Cost breakdown for 300 sq ft in Duluth, MN
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $11,400 | $17,200 | $22,900 | 28% |
| Labor | $28,600 | $42,900 | $57,200 | 70% |
| Permits and fees | $440 | $1,100 | $1,800 | 2% |
| Total | $40,500 | $61,100 | $81,800 | 100% |
Why Duluth prices look the way they do
The wage side of the estimate leans on carpenters, who do 50% of the hours on a typical job. Their local median is $29.10 an hour. Add the other trades involved and the blended wage index for Duluth is 1.12 (US = 1.00), which puts labor at 70% of the total.
Materials are scaled with BEA's regional price parity for goods. Duluth is at 95.3 against 100 for the US, so a materials line of $18,000 nationally becomes $17,200 here (midpoint, 300 sq ft). Permits follow the all-items index of 88.8: $440 to $1,800.
Who does the work: Duluth 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 Duluth the blend is 1.12.
Carpenters (47-2031), 50% of the weighting: a median of $29.10 an hour, in line with the US median of $29.12. The middle half of them earn between $23.05 and $36.50 an hour. About 620 work in the metro. That is 49.7 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 $33.81 an hour, 23% above the US median of $27.41. The middle half of them earn between $28.31 and $40.26 an hour. About 150 work in the metro. That is 12.0 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 $39.76 an hour, which is 31% above the national $30.38. The middle half of them earn between $29.03 and $46.53 an hour. BLS counts 680 of them working in the area, 54.5 for every 10,000 jobs (US: 48.7), so the local bench is about average.
Plumbers, pipefitters and steamfitters (47-2152), 10% of the weighting: a median of $40.89 an hour, 33% above the US median of $30.67. The middle half of them earn between $28.49 and $47.17 an hour. About 420 work in the metro. That is 33.7 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 $28.95 an hour, which is in line with the national $28.33. The middle half of them earn between $23.29 and $35.68 an hour. BLS counts 40 of them working in the area, 3.2 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 $35.03 an hour, 31% above the US median of $26.65. The middle half of them earn between $28.52 and $43.29 an hour. About 240 work in the metro. That is 19.2 per 10,000 jobs, compared with 8.7 nationally, which suggests plenty of local crews to bid.
A quick sensitivity check: moving the lead trade (carpenters) from the median to the 75th percentile wage adds about $4,850 to the midpoint estimate; the 25th percentile takes off about $3,950. That is a swing of roughly 6.5% to 7.9% of the total, which is useful for judging whether a bid reflects wages or something else, such as scope or margin.
Duluth has 124,710 jobs in total (BLS, May 2025), ranking 173rd 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% | $23.05 | $29.10 | $36.50 | $29.12 | 1.00 | metro |
| Cement masons and concrete finishers (47-2051) | 10% | $28.31 | $33.81 | $40.26 | $27.41 | 1.23 | metro |
| Electricians (47-2111) | 10% | $29.03 | $39.76 | $46.53 | $30.38 | 1.31 | metro |
| Plumbers, pipefitters and steamfitters (47-2152) | 10% | $28.49 | $40.89 | $47.17 | $30.67 | 1.33 | metro |
| Drywall and ceiling tile installers (47-2081) | 10% | $23.29 | $28.95 | $35.68 | $28.33 | 1.02 | metro |
| Roofers (47-2181) | 10% | $28.52 | $35.03 | $43.29 | $26.65 | 1.31 | metro |
| Blended | 100% | 1.12 | |||||
What nearby projects cost in Duluth
Jobs that often go together with home addition are priced below at their usual sizes, using the same Duluth wage and price inputs. Compared with national midpoints, roof replacement comes out highest (+17%) and kitchen remodel lowest (−2%); the gap comes from the trades each job uses.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Kitchen remodel | 120 sq ft | $18,200 – $31,000 | −2% |
| Bathroom remodel | 45 sq ft | $5,050 – $25,000 | +7% |
| Detached garage | 576 sq ft | $30,500 – $61,200 | +5% |
| Roof replacement | 2,000 sq ft of roof | $7,400 – $14,400 | +17% |
The best months for home addition in Duluth
Climate numbers on this page come from NOAA's 1991-2020 U.S. Climate Normals at the nearest suitable station, Duluth (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 Duluth are May through October: 6 of 12. Outside them, January, February, March, April, November and December have an average overnight low at or below freezing (32°F).
In January, February, March, April, 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 177 days a year with a low at or below 32°F at this station.
Duluth gets about 31 inches of precipitation in a normal year, including roughly 90 inches of snow. The wettest months are June, July and August (4.4 inches in June). Inside the workable window, May and October are the driest, at 3.4 and 2.9 inches. The station averages about 2 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 | 20 | 2 | 0.9 | Cold |
| Feb | 25 | 6 | 1.0 | Cold |
| Mar | 36 | 18 | 1.5 | Cold |
| Apr | 49 | 30 | 2.5 | Cold |
| May | 63 | 41 | 3.4 | Workable |
| Jun | 72 | 50 | 4.4 | Workable |
| Jul | 78 | 56 | 3.9 | Workable |
| Aug | 76 | 55 | 3.7 | Workable |
| Sep | 67 | 47 | 3.5 | Workable |
| Oct | 53 | 36 | 2.9 | Workable |
| Nov | 37 | 23 | 2.0 | Cold |
| Dec | 25 | 10 | 1.5 | Cold |
Pick a size, pick a tier: home addition pricing in Duluth
The cited range is split into basic, standard and premium bands, then scaled to Duluth. 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
$40,500 to $57,000
Bump-out or simple room without plumbing
Standard
$52,900 to $69,400
Standard room addition with HVAC and electrical
Premium
$65,300 to $81,800
Large addition with bath or kitchen and a new foundation
| Size | Basic | Standard | Premium |
|---|---|---|---|
| bump-out (100 sq ft) | $13,800 – $19,700 | $18,200 – $24,100 | $22,600 – $28,500 |
| 20x20 room (400 sq ft) | $53,800 – $75,700 | $70,200 – $92,100 | $86,600 – $108,500 |
| large suite (600 sq ft) | $80,500 – $113,000 | $105,000 – $137,500 | $129,500 – $162,000 |
How Duluth compares
Of the five closest metros, 3 are cheaper than Duluth. Wausau is the lowest at about $55,900 (midpoint, 300 sq ft), 210 miles away.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Duluth, MNthis page | $40,500 – $81,800 | $61,100 | |
| St. Cloud, MN155 miles | $40,600 – $82,100 | $61,300 | level |
| Minneapolis, MN160 miles | $45,300 – $91,700 | $68,500 | +12% |
| Eau Claire, WI175 miles | $38,600 – $78,000 | $58,300 | −5% |
| Wausau, WI210 miles | $37,000 – $74,900 | $55,900 | −9% |
| Fargo, ND215 miles | $37,400 – $75,800 | $56,600 | −7% |
| Minnesota (statewide) | $42,200 – $85,400 | $63,800 | +4% |
| United States | $38,000 – $77,000 | $57,500 | −6% |
Out of the 300 metros we cover, Duluth ranks #61 for the cost of this job (#1 is the most expensive). Statewide, Duluth is 4% below the Minnesota figure.
Elsewhere in Minnesota
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Minneapolis, MN | 1,951,650 jobs | $45,300 – $91,700 | $68,500 | +12% |
| Rochester, MN | 122,980 jobs | $40,600 – $82,200 | $61,400 | level |
| St. Cloud, MN | 103,920 jobs | $40,600 – $82,100 | $61,300 | level |
Metros of a similar size
Big cities and small ones price differently, so here is Duluth against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Crestview, FL | 125,050 jobs | $33,200 – $67,400 | $50,300 | −18% |
| Appleton, WI | 124,230 jobs | $39,800 – $80,400 | $60,100 | −2% |
| Norwich, CT | 126,450 jobs | $39,800 – $80,700 | $60,300 | −1% |
| Amarillo, TX | 123,930 jobs | $32,400 – $65,800 | $49,100 | −20% |
Specs and site conditions that change a Duluth bid
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).
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Home addition in Duluth: your questions
+How much does it cost to build a home addition in Duluth?
For 300 sq ft, expect $40,500 to $81,800 in the Duluth area. A standard-spec job lands at $52,900 to $69,400. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for home addition in Duluth?
About $133 to $267 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 Duluth or St. Cloud?
St. Cloud is 155 miles away. The midpoint for 300 sq ft there is $61,300, which is 0% more than Duluth ($61,100). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Duluth?
About 70% at the midpoint, or $42,900 out of $61,100. Materials are 28% and permits 2%. Nationally, labor is 67%.
+What would 20x20 room (400 sq ft) cost in Duluth?
$53,800 to $108,500. Pick a different size in the estimator above to get your own number.
+Does home addition need a permit in Duluth?
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 Duluth area (our national range of $500 to $2,000 scaled by the local price level).
+Is Duluth expensive for home addition compared with the rest of Minnesota?
Duluth is 4% below the Minnesota statewide estimate ($63,800 at the midpoint). We cover 4 metros in Minnesota; see the state page to compare them.
+What do carpenters earn in Duluth?
The BLS median is $29.10 an hour in the Duluth area, compared with $29.12 nationally. The 25th to 75th percentile range is $23.05 to $36.50.
+What do basic and premium home addition work cost in Duluth?
For 300 sq ft, basic work runs $40,500 to $57,000 and premium work $65,300 to $81,800. 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 Duluth?
Based on NOAA 1991-2020 normals, the comfortable months for this kind of work are May through October. May 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 Duluth
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.