Home addition cost in Anchorage, AK
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (300 sq ft)
- $45,800 – $92,600
- Per sq ft
- $151 – $302
- before permit
- Versus US midpoint
- +20%
- US $57,500
- Rank of 300 metros
- #9
- 1 = most expensive
If you want to build a home addition in Anchorage, plan on $45,800 to $92,600 for 300 sq ft, all in. Per sq ft, that is $151 to $302 for materials and labor, with the permit on top. The local midpoint runs 20% higher than the national one. Carpenters earn a median of $35.00 an hour in the Anchorage area, 20% above the US median of $29.12.
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Estimated cost for 300 sq ft in Anchorage, AK, standard level
$59,800 to $78,500
About $196 to $256 per sq ft before permits. Labor is about 70% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $16,700 | $21,900 |
| Labor | $42,100 | $55,000 |
| Permits and fees | $1,000 | $1,650 |
| Total | $59,800 | $78,500 |
Cost breakdown for 300 sq ft in Anchorage, AK
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $12,900 | $19,300 | $25,800 | 28% |
| Labor | $32,400 | $48,500 | $64,700 | 70% |
| Permits and fees | $530 | $1,300 | $2,100 | 2% |
| Total | $45,800 | $69,200 | $92,600 | 100% |
Why Anchorage 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 $35.00 an hour. Add the other trades involved and the blended wage index for Anchorage is 1.27 (US = 1.00), which puts labor at 70% of the total.
On the materials line, the BEA goods price index for the Anchorage metro is 107.3 (US = 100). The midpoint materials bill for 300 sq ft comes to $19,300, compared with $18,000 at national prices. Permit and inspection fees are scaled by the broader index (105.4) and land at $530 to $2,100.
Why two Anchorage 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).
What nearby projects cost in Anchorage
Because every project leans on different trades, Anchorage's wage level does not move all prices equally. Against the US midpoint, detached garage runs +17% and kitchen remodel +10%.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Kitchen remodel | 120 sq ft | $20,400 – $34,700 | +10% |
| Bathroom remodel | 45 sq ft | $5,400 – $26,800 | +15% |
| Detached garage | 576 sq ft | $33,900 – $68,000 | +17% |
| Roof replacement | 2,000 sq ft of roof | $7,050 – $14,200 | +14% |
Anchorage against nearby metros and the rest of Alaska
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 $62,700 to $70,900 across Anchorage and its five closest metros.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Anchorage, AKthis page | $45,800 – $92,600 | $69,200 | |
| Bellingham, WA1410 miles | $45,500 – $92,000 | $68,800 | −1% |
| Bremerton, WA1450 miles | $42,400 – $85,800 | $64,100 | −7% |
| Seattle, WA1480 miles | $46,900 – $94,800 | $70,900 | +2% |
| Olympia, WA1485 miles | $42,800 – $86,500 | $64,700 | −7% |
| Spokane, WA1570 miles | $41,500 – $84,000 | $62,700 | −9% |
| Alaska (statewide) | $46,600 – $94,200 | $70,400 | +2% |
| United States | $38,000 – $77,000 | $57,500 | −17% |
Across 300 US metros, Anchorage comes in at #9 from the top. The priciest is Honolulu, HI at $79,600; the cheapest is Brownsville, TX at $44,300 (midpoints, 300 sq ft). Statewide, Anchorage is 2% below the Alaska figure.
Anchorage is the only Alaska metro we cover, so the statewide page is the only in-state comparison. It uses statewide wages, which include rural areas.
Cities with a workforce like Anchorage's
Big cities and small ones price differently, so here is Anchorage against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Sioux Falls, SD | 178,590 jobs | $33,500 – $67,900 | $50,700 | −27% |
| Reading, PA | 174,670 jobs | $37,300 – $75,500 | $56,400 | −18% |
| Lafayette, LA | 179,570 jobs | $33,100 – $67,000 | $50,000 | −28% |
| Green Bay, WI | 174,550 jobs | $39,400 – $79,600 | $59,500 | −14% |
Anchorage labor market for home addition
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 Anchorage is 1.27 times the national level.
For carpenters (47-2031, weighted 50%) the local median is $35.00 an hour, which is 20% above the national $29.12. The middle half of them earn between $28.72 and $44.15 an hour. BLS counts 1,460 of them working in the area, 82.5 for every 10,000 jobs (US: 43.1), so the local bench is deeper than average.
For cement masons and concrete finishers (47-2051, weighted 10%) the local median is $44.35 an hour, which is 62% above the national $27.41. The middle half of them earn between $44.33 and $53.55 an hour. BLS counts 160 of them working in the area, 9.0 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 $39.63 an hour, 30% above the US median of $30.38. The middle half of them earn between $30.81 and $49.80 an hour. About 930 work in the metro. That is 52.5 per 10,000 jobs, compared with 48.7 nationally, so the supply of crews looks typical.
For plumbers, pipefitters and steamfitters (47-2152, weighted 10%) the local median is $45.00 an hour, which is 47% above the national $30.67. The middle half of them earn between $34.73 and $49.08 an hour. BLS counts 640 of them working in the area, 36.1 for every 10,000 jobs (US: 30.0), so the local bench is deeper than average.
Drywall and ceiling tile installers (47-2081), 10% of the weighting: a median of $31.34 an hour, 11% above the US median of $28.33. The middle half of them earn between $28.81 and $36.02 an hour. About 60 work in the metro. That is 3.4 per 10,000 jobs, compared with 5.3 nationally, so expect fewer local crews to bid.
For roofers (47-2181, weighted 10%) the local median is $31.61 an hour, which is 19% above the national $26.65. The middle half of them earn between $27.31 and $38.75 an hour. BLS counts 230 of them working in the area, 13.0 for every 10,000 jobs (US: 8.7), so the local bench is deeper than average.
Quotes come from real crews, not medians. If the carpenters on your job are paid at the 75th percentile ($44.15 an hour) instead of the median, the labor line grows by about $6,000. At the 25th percentile ($28.72) it shrinks by about $4,100. The total moves by 8.7% or 6.0%, so wages alone rarely explain a quote that is far outside our range.
For context on the local economy, BLS counts 177,050 jobs in the Anchorage area. That makes it the 131st largest of the 300 metros we cover, with 0.11% of US employment.
| Trade | Weight | 25th pct | Median | 75th pct | US median | Ratio | Level used |
|---|---|---|---|---|---|---|---|
| Carpenters (47-2031) | 50% | $28.72 | $35.00 | $44.15 | $29.12 | 1.20 | metro |
| Cement masons and concrete finishers (47-2051) | 10% | $44.33 | $44.35 | $53.55 | $27.41 | 1.62 | metro |
| Electricians (47-2111) | 10% | $30.81 | $39.63 | $49.80 | $30.38 | 1.30 | metro |
| Plumbers, pipefitters and steamfitters (47-2152) | 10% | $34.73 | $45.00 | $49.08 | $30.67 | 1.47 | metro |
| Drywall and ceiling tile installers (47-2081) | 10% | $28.81 | $31.34 | $36.02 | $28.33 | 1.11 | metro |
| Roofers (47-2181) | 10% | $27.31 | $31.61 | $38.75 | $26.65 | 1.19 | metro |
| Blended | 100% | 1.27 | |||||
Climate in Anchorage: timing your home addition job
We use NOAA's 1991-2020 climate normals for Eagle Rvr Nature Ctr (5 miles from the city center). These are 30-year monthly averages, not forecasts.
May through September is the stretch where digging, grading and setting material in the ground runs into the fewest weather problems in Anchorage (5 of 12 months). January, February, March, April, October, November and December have an average overnight low at or below freezing (32°F).
In January, February, March, April, October, 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 204 days a year with a low at or below 32°F at this station.
Anchorage gets about 23 inches of precipitation in a normal year. The wettest months are August, September and October (3.6 inches in September). Inside the workable window, May and June are the driest, at 0.9 and 1.3 inches.
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 | 21 | 6 | 2.3 | Cold |
| Feb | 28 | 12 | 1.6 | Cold |
| Mar | 35 | 15 | 1.6 | Cold |
| Apr | 47 | 27 | 0.8 | Cold |
| May | 58 | 36 | 0.9 | Workable |
| Jun | 65 | 44 | 1.3 | Workable |
| Jul | 67 | 48 | 1.7 | Workable |
| Aug | 65 | 45 | 2.6 | Workable |
| Sep | 56 | 37 | 3.6 | Workable |
| Oct | 42 | 26 | 2.5 | Cold |
| Nov | 26 | 13 | 1.7 | Cold |
| Dec | 23 | 9 | 2.0 | Cold |
Cost by quality level and size in Anchorage
Three bands are cut from the same cited range and localized for Anchorage 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
$45,800 to $64,500
Bump-out or simple room without plumbing
Standard
$59,800 to $78,500
Standard room addition with HVAC and electrical
Premium
$73,900 to $92,600
Large addition with bath or kitchen and a new foundation
| Size | Basic | Standard | Premium |
|---|---|---|---|
| bump-out (100 sq ft) | $15,600 – $22,300 | $20,600 – $27,300 | $25,600 – $32,300 |
| 20x20 room (400 sq ft) | $60,900 – $85,600 | $79,400 – $104,000 | $98,000 – $123,000 |
| large suite (600 sq ft) | $91,000 – $128,000 | $118,500 – $155,500 | $146,500 – $183,000 |
Get 3 local quotes
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Detailed home addition report for Anchorage, AK, $9
The report lays out the home addition numbers for Anchorage, AK line by line, with the local wage and price inputs, permit and timing notes, a quote comparison sheet and the full method. 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 Anchorage: your questions
+How much does it cost to build a home addition in Anchorage?
For 300 sq ft, expect $45,800 to $92,600 in the Anchorage area. A standard-spec job lands at $59,800 to $78,500. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for home addition in Anchorage?
About $151 to $302 per sq ft for materials and labor, plus $530 to $2,100 for the permit if one is needed. The US range is $125 to $250.
+Is home addition cheaper in Anchorage or Bellingham?
Bellingham is 1410 miles away. The midpoint for 300 sq ft there is $68,800, which is 1% less than Anchorage ($69,200). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Anchorage?
About 70% at the midpoint, or $48,500 out of $69,200. Materials are 28% and permits 2%. Nationally, labor is 67%.
+What would 20x20 room (400 sq ft) cost in Anchorage?
$60,900 to $123,000. Pick a different size in the estimator above to get your own number.
+Does home addition need a permit in Anchorage?
Often, but rules are set by your city or county building office, so call before you hire. Budget $530 to $2,100 for fees in the Anchorage area (our national range of $500 to $2,000 scaled by the local price level).
+Is Anchorage expensive for home addition compared with the rest of Alaska?
Anchorage is 2% below the Alaska statewide estimate ($70,400 at the midpoint).
+What do carpenters earn in Anchorage?
The BLS median is $35.00 an hour in the Anchorage area, compared with $29.12 nationally. The 25th to 75th percentile range is $28.72 to $44.15.
+What do basic and premium home addition work cost in Anchorage?
For 300 sq ft, basic work runs $45,800 to $64,500 and premium work $73,900 to $92,600. 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 Anchorage?
Based on NOAA 1991-2020 normals, the comfortable months for this kind of work are May through September. May and June 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 Anchorage
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.