Detached garage cost in Flagstaff, AZ
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (576 sq ft)
- $27,700 – $55,600
- Per sq ft
- $48 – $95.50
- before permit
- Versus US midpoint
- −4%
- US $43,500
- Rank of 300 metros
- #152
- 1 = most expensive
A detached garage in Flagstaff, AZ usually costs $27,700 to $55,600 for 576 sq ft. That works out to about $48 to $95.50 per sq ft before permits. Compared with the national midpoint that is $1,900 less. Carpenters earn a median of $26.91 an hour in the Flagstaff area, 8% below the US median of $29.12.
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Estimated cost for 576 sq ft in Flagstaff, AZ, standard level
$36,000 to $47,200
About $62 to $81 per sq ft before permits. Labor is about 49% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $18,000 | $23,600 |
| Labor | $17,800 | $23,200 |
| Permits and fees | $260 | $400 |
| Total | $36,000 | $47,200 |
Cost breakdown for 576 sq ft in Flagstaff, AZ
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $13,900 | $20,800 | $27,700 | 50% |
| Labor | $13,700 | $20,500 | $27,300 | 49% |
| Permits and fees | $150 | $330 | $500 | 1% |
| Total | $27,700 | $41,600 | $55,600 | 100% |
Where the Flagstaff price comes from
We price the labor side from BLS wage data for 5 trades: carpenters at 45%, cement masons and concrete finishers at 15%, construction laborers at 20%, electricians at 10%, roofers at 10%. Weighted together, Flagstaff wages are 0.95 times the national level. Labor makes up about 49% of the midpoint estimate (50% at national prices).
Materials are scaled with BEA's regional price parity for goods. Flagstaff is at 96.2 against 100 for the US, so a materials line of $21,600 nationally becomes $20,800 here (midpoint, 576 sq ft). Permits follow the all-items index of 100.3: $150 to $500.
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 Flagstaff. The wage table below marks each row.
What nearby projects cost in Flagstaff
Jobs that often go together with detached garage are priced below at their usual sizes, using the same Flagstaff wage and price inputs. Compared with national midpoints, concrete driveway comes out highest (−1%) and home addition lowest (−6%); the gap comes from the trades each job uses.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Concrete slab | 400 sq ft | $2,400 – $5,100 | −2% |
| Garage door | 1 door | $670 – $3,550 | −4% |
| Concrete driveway | 600 sq ft | $3,600 – $9,100 | −1% |
| Home addition | 300 sq ft | $35,600 – $72,200 | −6% |
Flagstaff: what basic, standard and premium work costs
The cited range is split into basic, standard and premium bands, then scaled to Flagstaff. Bands overlap, because plenty of standard jobs cost as much as a light premium one. Sizes run from 1-car (12x20), 240 sq ft to 3-car (900 sq ft).
Basic
$27,700 to $38,800
Basic shell: slab, framing, siding, a roll-up door
Standard
$36,000 to $47,200
Finished exterior, insulated, electrical and a nicer door
Premium
$44,400 to $55,600
Insulated and drywalled, heat and cooling, upgraded finishes
| Size | Basic | Standard | Premium |
|---|---|---|---|
| 1-car (12x20), 240 sq ft | $11,600 – $16,300 | $15,200 – $19,900 | $18,700 – $23,400 |
| 2-car (24x24), 576 sq ft | $27,700 – $38,800 | $36,000 – $47,200 | $44,400 – $55,600 |
| 2.5-car (24x30), 720 sq ft | $34,600 – $48,500 | $45,000 – $58,900 | $55,400 – $69,300 |
| 3-car (900 sq ft) | $43,200 – $60,500 | $56,200 – $73,500 | $69,200 – $86,500 |
Is Flagstaff cheap or dear? The local comparison
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 576 sq ft range from $39,200 to $43,400 across Flagstaff and its five closest metros.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Flagstaff, AZthis page | $27,700 – $55,600 | $41,600 | |
| Prescott Valley, AZ95 miles | $27,300 – $54,800 | $41,100 | −1% |
| Lake Havasu City, AZ110 miles | $26,100 – $52,300 | $39,200 | −6% |
| St. George, UT135 miles | $26,300 – $52,700 | $39,500 | −5% |
| Las Vegas, NV185 miles | $28,800 – $57,900 | $43,400 | +4% |
| Phoenix, AZ185 miles | $28,000 – $56,300 | $42,200 | +1% |
| Arizona (statewide) | $27,900 – $55,900 | $41,900 | +1% |
| United States | $29,000 – $58,100 | $43,500 | +5% |
Out of the 300 metros we cover, Flagstaff ranks #152 for the cost of this job (#1 is the most expensive). Statewide, Flagstaff is 1% below the Arizona figure.
Elsewhere in Arizona
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Phoenix, AZ | 2,375,760 jobs | $28,000 – $56,300 | $42,200 | +1% |
| Tucson, AZ | 389,630 jobs | $26,700 – $53,600 | $40,100 | −4% |
| Prescott Valley, AZ | 72,300 jobs | $27,300 – $54,800 | $41,100 | −1% |
| Yuma, AZ | 68,880 jobs | $26,200 – $52,600 | $39,400 | −5% |
| Lake Havasu City, AZ | 56,490 jobs | $26,100 – $52,300 | $39,200 | −6% |
Metros of a similar size
Big cities and small ones price differently, so here is Flagstaff against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Logan, UT | 66,800 jobs | $26,600 – $53,300 | $39,900 | −4% |
| Amherst, MA | 65,670 jobs | $30,900 – $62,000 | $46,400 | +12% |
| Missoula, MT | 67,070 jobs | $28,900 – $58,000 | $43,400 | +4% |
| Harrisonburg, VA | 65,460 jobs | $26,500 – $53,100 | $39,800 | −4% |
Flagstaff weather and the detached garage calendar
Climate numbers on this page come from NOAA's 1991-2020 U.S. Climate Normals at the nearest suitable station, Flagstaff Pulliam Ap (5 miles from the city center). They are 30-year averages, so any one year can run hotter, colder or wetter.
For pouring concrete, the comfortable months in Flagstaff are June through September: 4 of 12. Outside them, January, February, March, April, May, October, November and December have an average overnight low of 40°F or below.
The 40°F line is a deliberately cautious stand-in. The American Concrete Institute's cold-weather guide (ACI 306R-16) defines cold-weather concreting around an average daily air temperature below 40°F, which is colder than our test of an average overnight low at or below 40°F, so we flag a few extra shoulder months. In cold weather crews may need heated enclosures, insulating blankets or accelerated mixes, and those measures can raise a quote.
Flagstaff gets about 21 inches of precipitation in a normal year, including roughly 90 inches of snow. The wettest months are February, July and August (3.0 inches in August). Inside the workable window, June and September are the driest, at 0.3 and 1.8 inches. The station averages about 3 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 | 43 | 18 | 2.0 | Cold |
| Feb | 46 | 20 | 2.2 | Cold |
| Mar | 52 | 24 | 1.9 | Cold |
| Apr | 59 | 28 | 0.9 | Cold |
| May | 68 | 35 | 0.8 | Cold |
| Jun | 79 | 43 | 0.3 | Workable |
| Jul | 82 | 51 | 2.6 | Workable |
| Aug | 79 | 51 | 3.0 | Workable |
| Sep | 74 | 43 | 1.8 | Workable |
| Oct | 64 | 32 | 1.5 | Cold |
| Nov | 52 | 23 | 1.6 | Cold |
| Dec | 43 | 17 | 1.9 | Cold |
Detached garage: what moves the price in Flagstaff
Foundation
A slab is cheapest. A frost-depth foundation in cold states costs more.
Garage apartments
A garage with living space is a different project: HomeGuide puts them at $80,000-$300,000.
Permits
You need a permit for a detached garage: $150-$500 on average, with separate electrical or plumbing permits if those are involved.
What local crews earn in Flagstaff
The labor line is built from BLS wage data, one trade at a time. This job draws on 5 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 Flagstaff the blend is 0.95.
Carpenters (47-2031), 45% of the weighting: a median of $26.91 an hour, 8% below the US median of $29.12. The middle half of them earn between $22.77 and $30.14 an hour. About 280 work in the metro. That is 42.0 per 10,000 jobs, compared with 43.1 nationally, so the supply of crews looks typical.
For construction laborers (47-2061, weighted 20%) the local median is $22.32 an hour, which is in line with the national $22.66. The middle half of them earn between $18.61 and $24.26 an hour. BLS counts 470 of them working in the area, 70.6 for every 10,000 jobs (US: 70.5), so the local bench is about average.
Cement masons and concrete finishers (47-2051), 15% of the weighting: a median of $28.12 an hour, in line with the US median of $27.41. The middle half of them earn between $23.15 and $29.88 an hour. About 90 work in the metro. That is 13.5 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 $29.49 an hour, which is in line with the national $30.38. The middle half of them earn between $23.72 and $37.00 an hour. BLS counts 250 of them working in the area, 37.5 for every 10,000 jobs (US: 48.7), so the local bench is thinner than average.
Roofers (47-2181) carry 10% of the labor weighting. BLS does not publish this trade for the Flagstaff metro, so we used the Arizona statewide median: $22.76 an hour against $26.65 for the US. The middle half of them earn between $19.16 and $28.43 an hour.
A quick sensitivity check: moving the lead trade (carpenters) from the median to the 75th percentile wage adds about $1,100 to the midpoint estimate; the 25th percentile takes off about $1,400. That is a swing of roughly 3.3% to 2.6% of the total, which is useful for judging whether a bid reflects wages or something else, such as scope or margin.
Flagstaff has 66,610 jobs in total (BLS, May 2025), ranking 272nd by size among the 300 metros on this site.
| Trade | Weight | 25th pct | Median | 75th pct | US median | Ratio | Level used |
|---|---|---|---|---|---|---|---|
| Carpenters (47-2031) | 45% | $22.77 | $26.91 | $30.14 | $29.12 | 0.92 | metro |
| Cement masons and concrete finishers (47-2051) | 15% | $23.15 | $28.12 | $29.88 | $27.41 | 1.03 | metro |
| Construction laborers (47-2061) | 20% | $18.61 | $22.32 | $24.26 | $22.66 | 0.98 | metro |
| Electricians (47-2111) | 10% | $23.72 | $29.49 | $37.00 | $30.38 | 0.97 | metro |
| Roofers (47-2181) | 10% | $19.16 | $22.76 | $28.43 | $26.65 | 0.85 | state |
| Blended | 100% | 0.95 | |||||
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Detached garage in Flagstaff: your questions
+How much does it cost to build a detached garage in Flagstaff?
For 576 sq ft, expect $27,700 to $55,600 in the Flagstaff area. A standard-spec job lands at $36,000 to $47,200. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for detached garage in Flagstaff?
About $48 to $95.50 per sq ft for materials and labor, plus $150 to $500 for the permit if one is needed. The US range is $50 to $100.
+Is detached garage cheaper in Flagstaff or Prescott Valley?
Prescott Valley is 95 miles away. The midpoint for 576 sq ft there is $41,100, which is 1% less than Flagstaff ($41,600). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Flagstaff?
About 49% at the midpoint, or $20,500 out of $41,600. Materials are 50% and permits 1%. Nationally, labor is 50%.
+What would 2.5-car (24x30), 720 sq ft cost in Flagstaff?
$34,600 to $69,300. Pick a different size in the estimator above to get your own number.
+Does detached garage need a permit in Flagstaff?
Often, but rules are set by your city or county building office, so call before you hire. Budget $150 to $500 for fees in the Flagstaff area (our national range of $150 to $500 scaled by the local price level).
+Is Flagstaff expensive for detached garage compared with the rest of Arizona?
Flagstaff is 1% below the Arizona statewide estimate ($41,900 at the midpoint). We cover 6 metros in Arizona; see the state page to compare them.
+What do carpenters earn in Flagstaff?
The BLS median is $26.91 an hour in the Flagstaff area, compared with $29.12 nationally. The 25th to 75th percentile range is $22.77 to $30.14.
+What do basic and premium detached garage work cost in Flagstaff?
For 576 sq ft, basic work runs $27,700 to $38,800 and premium work $44,400 to $55,600. Basic means: basic shell: slab, framing, siding, a roll-up door. Premium means: insulated and drywalled, heat and cooling, upgraded finishes.
+When is the best time to build a detached garage in Flagstaff?
Based on NOAA 1991-2020 normals, the comfortable months for this kind of work are June through September. June and September are typically the driest of those months. Local contractors' schedules matter as much as the weather, so book early for the busy months.
Detached garage near Flagstaff
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 Detached Garage Cost? (2026) (accessed November 4, 2026)
- Trusscore: How Much Does It Cost to Build a Garage? 2026 Price Guide (accessed November 4, 2026)
- Angi: How Much Does It Cost to Build a Detached Garage? [2026 Data] (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 = installed range / 1.6, because Angi puts professional labor at roughly an additional 60% of the materials cost (materials about 62.5% of the total).