Home addition cost in Durham, NC
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (300 sq ft)
- $33,900 – $68,800
- Per sq ft
- $111 – $223
- before permit
- Versus US midpoint
- −11%
- US $57,500
- Rank of 300 metros
- #199
- 1 = most expensive
Durham homeowners pay roughly $33,900 to $68,800 to build a home addition at 300 sq ft, or $111 to $223 per sq ft (permit not included). Against the US midpoint, Durham is 11% lower. Carpenters earn a median of $24.78 an hour in the Durham area, 15% below the US median of $29.12.
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Estimated cost for 300 sq ft in Durham, NC, standard level
$44,400 to $58,300
About $145 to $189 per sq ft before permits. Labor is about 64% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $15,100 | $19,700 |
| Labor | $28,400 | $37,100 |
| Permits and fees | $930 | $1,500 |
| Total | $44,400 | $58,300 |
Cost breakdown for 300 sq ft in Durham, NC
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $11,600 | $17,400 | $23,200 | 34% |
| Labor | $21,800 | $32,800 | $43,700 | 64% |
| Permits and fees | $490 | $1,200 | $1,950 | 2% |
| Total | $33,900 | $51,400 | $68,800 | 100% |
Why Durham prices look the way they do
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, Durham wages are 0.86 times the national level. Labor makes up about 64% of the midpoint estimate (67% at national prices).
On the materials line, the BEA goods price index for the Durham metro is 96.6 (US = 100). The midpoint materials bill for 300 sq ft comes to $17,400, compared with $18,000 at national prices. Permit and inspection fees are scaled by the broader index (97.6) and land at $490 to $1,950.
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 Durham. The wage table below marks each row.
Why two Durham quotes can differ
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.
Local wages behind the labor line
Wages are the part of this estimate that changes most from town to town. 6 trades carry the job here, and each is compared with its US median. The weighted result for Durham is 0.86 times the national level.
For carpenters (47-2031, weighted 50%) the local median is $24.78 an hour, which is 15% below the national $29.12. The middle half of them earn between $21.40 and $29.03 an hour. BLS counts 520 of them working in the area, 15.1 for every 10,000 jobs (US: 43.1), so the local bench is thinner than average.
For cement masons and concrete finishers (47-2051, weighted 10%) the local median is $21.36 an hour, which is 22% below the national $27.41. The middle half of them earn between $18.21 and $24.17 an hour. BLS counts 140 of them working in the area, 4.1 for every 10,000 jobs (US: 13.3), so the local bench is thinner than average.
Electricians (47-2111), 10% of the weighting: a median of $28.47 an hour, 6% below the US median of $30.38. The middle half of them earn between $23.95 and $30.77 an hour. About 1,160 work in the metro. That is 33.7 per 10,000 jobs, compared with 48.7 nationally, so expect fewer local crews to bid.
For plumbers, pipefitters and steamfitters (47-2152, weighted 10%) the local median is $28.90 an hour, which is 6% below the national $30.67. The middle half of them earn between $23.25 and $31.27 an hour. BLS counts 620 of them working in the area, 18.0 for every 10,000 jobs (US: 30.0), so the local bench is thinner than average.
Drywall and ceiling tile installers (47-2081) carry 10% of the labor weighting. BLS does not publish this trade for the Durham metro, so we used the North Carolina statewide median: $21.67 an hour against $28.33 for the US. The middle half of them earn between $17.43 and $24.29 an hour.
Roofers (47-2181) carry 10% of the labor weighting. BLS does not publish this trade for the Durham metro, so we used the North Carolina statewide median: $23.56 an hour against $26.65 for the US. The middle half of them earn between $21.61 and $27.18 an hour.
Quotes come from real crews, not medians. If the carpenters on your job are paid at the 75th percentile ($29.03 an hour) instead of the median, the labor line grows by about $2,800. At the 25th percentile ($21.40) it shrinks by about $2,200. The total moves by 5.4% or 4.3%, so wages alone rarely explain a quote that is far outside our range.
For context on the local economy, BLS counts 344,020 jobs in the Durham-Chapel Hill area. That makes it the 74th largest of the 300 metros we cover, with 0.22% of US employment.
| Trade | Weight | 25th pct | Median | 75th pct | US median | Ratio | Level used |
|---|---|---|---|---|---|---|---|
| Carpenters (47-2031) | 50% | $21.40 | $24.78 | $29.03 | $29.12 | 0.85 | metro |
| Cement masons and concrete finishers (47-2051) | 10% | $18.21 | $21.36 | $24.17 | $27.41 | 0.78 | metro |
| Electricians (47-2111) | 10% | $23.95 | $28.47 | $30.77 | $30.38 | 0.94 | metro |
| Plumbers, pipefitters and steamfitters (47-2152) | 10% | $23.25 | $28.90 | $31.27 | $30.67 | 0.94 | metro |
| Drywall and ceiling tile installers (47-2081) | 10% | $17.43 | $21.67 | $24.29 | $28.33 | 0.76 | state |
| Roofers (47-2181) | 10% | $21.61 | $23.56 | $27.18 | $26.65 | 0.88 | state |
| Blended | 100% | 0.86 | |||||
When to schedule home addition in Durham
We use NOAA's 1991-2020 climate normals for Raleigh Durham Intl Ap (10 miles from the city center). These are 30-year monthly averages, not forecasts.
February through June and August through December are the stretches where digging, grading and setting material in the ground runs into the fewest weather problems in Durham (10 of 12 months). January has an average overnight low at or below freezing (32°F); July has an average daytime high of 90°F or more.
In January the average low is at or below freezing, which means frozen ground and slower digging, compaction and sod or stone placement. NOAA counts about 65 days a year with a low at or below 32°F at this station.
Durham gets about 46 inches of precipitation in a normal year, including roughly 5 inches of snow. The wettest months are July, August and September (5.2 inches in September). Inside the workable window, February and November are the driest, at 2.8 and 3.3 inches. The station averages about 52 days a year at 90°F or above.
Does the season change the price? Probably, but we do not have a sourced seasonal price curve, so the estimator shows a year-round figure and does not adjust by month. When you collect quotes, ask whether scheduling in a slower month gets a better rate.
| Month | Avg high °F | Avg low °F | Precip (in) | For this job |
|---|---|---|---|---|
| Jan | 52 | 32 | 3.4 | Cold |
| Feb | 56 | 34 | 2.8 | Workable |
| Mar | 63 | 40 | 4.1 | Workable |
| Apr | 73 | 49 | 3.5 | Workable |
| May | 80 | 58 | 3.4 | Workable |
| Jun | 87 | 66 | 3.9 | Workable |
| Jul | 91 | 70 | 5.0 | Hot |
| Aug | 89 | 69 | 4.7 | Workable |
| Sep | 83 | 63 | 5.2 | Workable |
| Oct | 73 | 50 | 3.4 | Workable |
| Nov | 63 | 40 | 3.3 | Workable |
| Dec | 55 | 34 | 3.4 | Workable |
Durham against nearby metros and the rest of North Carolina
Same job, same size (300 sq ft), priced for the nearest metros. Raleigh is the priciest of the group at $51,400. Fayetteville is the cheapest at $48,700.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Durham, NCthis page | $33,900 – $68,800 | $51,400 | |
| Burlington, NC15 miles | $33,000 – $67,000 | $50,000 | −3% |
| Greensboro, NC40 miles | $33,700 – $68,400 | $51,100 | −1% |
| Raleigh, NC40 miles | $33,900 – $68,900 | $51,400 | level |
| Fayetteville, NC65 miles | $32,200 – $65,300 | $48,700 | −5% |
| Winston, NC70 miles | $33,000 – $66,900 | $49,900 | −3% |
| North Carolina (statewide) | $33,300 – $67,500 | $50,400 | −2% |
| United States | $38,000 – $77,000 | $57,500 | +12% |
Across 300 US metros, Durham comes in at #199 from the top. The priciest is Honolulu, HI at $79,600; the cheapest is Brownsville, TX at $44,300 (midpoints, 300 sq ft). Statewide, Durham is 2% above the North Carolina figure.
Other North Carolina metros
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Charlotte, NC | 1,358,370 jobs | $33,900 – $68,800 | $51,300 | level |
| Raleigh, NC | 743,120 jobs | $33,900 – $68,900 | $51,400 | level |
| Greensboro, NC | 365,410 jobs | $33,700 – $68,400 | $51,100 | −1% |
| Winston, NC | 271,980 jobs | $33,000 – $66,900 | $49,900 | −3% |
| Wilmington, NC | 191,280 jobs | $33,900 – $68,800 | $51,400 | level |
| Asheville, NC | 180,620 jobs | $33,700 – $68,400 | $51,100 | −1% |
Cities with a workforce like Durham's
Big cities and small ones price differently, so here is Durham against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Worcester, MA | 349,880 jobs | $45,000 – $91,100 | $68,100 | +33% |
| North Port, FL | 339,940 jobs | $34,100 – $69,200 | $51,600 | level |
| Little Rock, AR | 358,210 jobs | $31,900 – $64,600 | $48,300 | −6% |
| El Paso, TX | 339,120 jobs | $30,200 – $61,200 | $45,700 | −11% |
Pick a size, pick a tier: home addition pricing in Durham
Three bands are cut from the same cited range and localized for Durham wages and prices. They overlap on purpose: a good standard job and a modest premium job can cost the same. The grid below prices the same bands at 3 common sizes.
Basic
$33,900 to $47,900
Bump-out or simple room without plumbing
Standard
$44,400 to $58,300
Standard room addition with HVAC and electrical
Premium
$54,900 to $68,800
Large addition with bath or kitchen and a new foundation
| Size | Basic | Standard | Premium |
|---|---|---|---|
| bump-out (100 sq ft) | $11,600 – $16,700 | $15,400 – $20,500 | $19,200 – $24,200 |
| 20x20 room (400 sq ft) | $45,100 – $63,500 | $58,900 – $77,300 | $72,700 – $91,100 |
| large suite (600 sq ft) | $67,300 – $94,700 | $87,800 – $115,000 | $108,500 – $135,500 |
Related projects, priced for Durham
Because every project leans on different trades, Durham's wage level does not move all prices equally. Against the US midpoint, kitchen remodel runs −5% and bathroom remodel −8%.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Kitchen remodel | 120 sq ft | $17,500 – $29,800 | −5% |
| Bathroom remodel | 45 sq ft | $4,300 – $21,300 | −8% |
| Detached garage | 576 sq ft | $26,700 – $53,600 | −8% |
| Roof replacement | 2,000 sq ft of roof | $5,600 – $11,600 | −7% |
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 $44,400 to $58,300 for Durham, NC is attached.
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Home addition in Durham: your questions
+How much does it cost to build a home addition in Durham?
For 300 sq ft, expect $33,900 to $68,800 in the Durham area. A standard-spec job lands at $44,400 to $58,300. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for home addition in Durham?
About $111 to $223 per sq ft for materials and labor, plus $490 to $1,950 for the permit if one is needed. The US range is $125 to $250.
+Is home addition cheaper in Durham or Burlington?
Burlington is 15 miles away. The midpoint for 300 sq ft there is $50,000, which is 3% less than Durham ($51,400). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Durham?
About 64% at the midpoint, or $32,800 out of $51,400. Materials are 34% and permits 2%. Nationally, labor is 67%.
+What would 20x20 room (400 sq ft) cost in Durham?
$45,100 to $91,100. Pick a different size in the estimator above to get your own number.
+Does home addition need a permit in Durham?
Often, but rules are set by your city or county building office, so call before you hire. Budget $490 to $1,950 for fees in the Durham area (our national range of $500 to $2,000 scaled by the local price level).
+Is Durham expensive for home addition compared with the rest of North Carolina?
Durham is 2% above the North Carolina statewide estimate ($50,400 at the midpoint). We cover 11 metros in North Carolina; see the state page to compare them.
+What do carpenters earn in Durham?
The BLS median is $24.78 an hour in the Durham area, compared with $29.12 nationally. The 25th to 75th percentile range is $21.40 to $29.03.
+What do basic and premium home addition work cost in Durham?
For 300 sq ft, basic work runs $33,900 to $47,900 and premium work $54,900 to $68,800. 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 Durham?
Based on NOAA 1991-2020 normals, the comfortable months for this kind of work are February through June and August through December. February and November 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 Durham
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.