Detached garage cost in Charleston, SC
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (576 sq ft)
- $26,700 – $53,500
- Per sq ft
- $46 – $92
- before permit
- Versus US midpoint
- −8%
- US $43,500
- Rank of 300 metros
- #193
- 1 = most expensive
Local price for a detached garage in the Charleston area: $26,700 to $53,500 for 576 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 8% lower than the US figure. Carpenters earn a median of $24.22 an hour in the Charleston area, 17% below the US median of $29.12.
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Estimated cost for 576 sq ft in Charleston, SC, standard level
$34,700 to $45,500
About $60 to $78 per sq ft before permits. Labor is about 47% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $18,000 | $23,600 |
| Labor | $16,400 | $21,500 |
| Permits and fees | $260 | $400 |
| Total | $34,700 | $45,500 |
Cost breakdown for 576 sq ft in Charleston, SC
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $13,900 | $20,800 | $27,700 | 52% |
| Labor | $12,600 | $19,000 | $25,300 | 47% |
| Permits and fees | $150 | $330 | $500 | 1% |
| Total | $26,700 | $40,100 | $53,500 | 100% |
What is behind the Charleston number
Labor is 47% of the midpoint bill here, against 50% nationally. The mix of trades behind this job is carpenters (45%), cement masons and concrete finishers (15%), construction laborers (20%), electricians (10%), roofers (10%). We weight each trade's local median wage by that share and compare it with the national median. In Charleston the blended ratio comes out at 0.88.
Materials are scaled with BEA's regional price parity for goods. Charleston is at 96.3 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 101.0: $150 to $500.
Who does the work: Charleston trade wages
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 Charleston the blend is 0.88.
Carpenters (47-2031), 45% of the weighting: a median of $24.22 an hour, 17% below the US median of $29.12. The middle half of them earn between $21.37 and $29.52 an hour. About 1,240 work in the metro. That is 31.5 per 10,000 jobs, compared with 43.1 nationally, so expect fewer local crews to bid.
For construction laborers (47-2061, weighted 20%) the local median is $20.98 an hour, which is 7% below the national $22.66. The middle half of them earn between $18.00 and $24.49 an hour. BLS counts 3,710 of them working in the area, 94.1 for every 10,000 jobs (US: 70.5), so the local bench is deeper than average.
Cement masons and concrete finishers (47-2051), 15% of the weighting: a median of $25.27 an hour, 8% below the US median of $27.41. The middle half of them earn between $22.52 and $30.36 an hour. About 300 work in the metro. That is 7.6 per 10,000 jobs, compared with 13.3 nationally, so expect fewer local crews to bid.
For electricians (47-2111, weighted 10%) the local median is $28.37 an hour, which is 7% below the national $30.38. The middle half of them earn between $23.54 and $31.81 an hour. BLS counts 1,480 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), 10% of the weighting: a median of $23.09 an hour, 13% below the US median of $26.65. The middle half of them earn between $18.81 and $29.46 an hour. About 110 work in the metro. That is 2.8 per 10,000 jobs, compared with 8.7 nationally, so expect fewer local crews to bid.
A quick sensitivity check: moving the lead trade (carpenters) from the median to the 75th percentile wage adds about $1,750 to the midpoint estimate; the 25th percentile takes off about $950. That is a swing of roughly 2.4% to 4.4% of the total, which is useful for judging whether a bid reflects wages or something else, such as scope or margin.
Charleston-North Charleston has 394,170 jobs in total (BLS, May 2025), ranking 66th 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% | $21.37 | $24.22 | $29.52 | $29.12 | 0.83 | metro |
| Cement masons and concrete finishers (47-2051) | 15% | $22.52 | $25.27 | $30.36 | $27.41 | 0.92 | metro |
| Construction laborers (47-2061) | 20% | $18.00 | $20.98 | $24.49 | $22.66 | 0.93 | metro |
| Electricians (47-2111) | 10% | $23.54 | $28.37 | $31.81 | $30.38 | 0.93 | metro |
| Roofers (47-2181) | 10% | $18.81 | $23.09 | $29.46 | $26.65 | 0.87 | metro |
| Blended | 100% | 0.88 | |||||
The best months for detached garage in Charleston
Climate numbers on this page come from NOAA's 1991-2020 U.S. Climate Normals at the nearest suitable station, Charleston City (5 miles from the city center). They are 30-year averages, so any one year can run hotter, colder or wetter.
Weather is not a serious constraint for pouring concrete in Charleston: no month in the averages is cold enough (an average overnight low of 40°F or below) or hot enough (an average daytime high of 90°F or more) to rule it out, so the workable window is all year.
Charleston gets about 44 inches of precipitation in a normal year. The wettest months are July, August and September (6.1 inches in August). The station averages about 25 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 | 58 | 44 | 2.6 | Workable |
| Feb | 60 | 46 | 2.6 | Workable |
| Mar | 66 | 52 | 3.0 | Workable |
| Apr | 72 | 60 | 3.0 | Workable |
| May | 79 | 68 | 2.6 | Workable |
| Jun | 84 | 74 | 4.8 | Workable |
| Jul | 88 | 77 | 5.1 | Workable |
| Aug | 86 | 77 | 6.1 | Workable |
| Sep | 83 | 73 | 5.3 | Workable |
| Oct | 76 | 63 | 4.1 | Workable |
| Nov | 67 | 53 | 2.3 | Workable |
| Dec | 61 | 47 | 2.9 | Workable |
Planning more than one job in Charleston?
Jobs that often go together with detached garage are priced below at their usual sizes, using the same Charleston wage and price inputs. Compared with national midpoints, concrete slab comes out highest (−6%) and home addition lowest (−12%); the gap comes from the trades each job uses.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Concrete slab | 400 sq ft | $2,300 – $4,900 | −6% |
| Garage door | 1 door | $650 – $3,500 | −6% |
| Concrete driveway | 600 sq ft | $3,400 – $8,500 | −7% |
| Home addition | 300 sq ft | $33,600 – $68,200 | −12% |
Charleston: what basic, standard and premium work costs
The cited range is split into basic, standard and premium bands, then scaled to Charleston. 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
$26,700 to $37,400
Basic shell: slab, framing, siding, a roll-up door
Standard
$34,700 to $45,500
Finished exterior, insulated, electrical and a nicer door
Premium
$42,800 to $53,500
Insulated and drywalled, heat and cooling, upgraded finishes
| Size | Basic | Standard | Premium |
|---|---|---|---|
| 1-car (12x20), 240 sq ft | $11,200 – $15,800 | $14,600 – $19,200 | $18,000 – $22,600 |
| 2-car (24x24), 576 sq ft | $26,700 – $37,400 | $34,700 – $45,500 | $42,800 – $53,500 |
| 2.5-car (24x30), 720 sq ft | $33,300 – $46,700 | $43,300 – $56,700 | $53,400 – $66,800 |
| 3-car (900 sq ft) | $41,600 – $58,300 | $54,100 – $70,800 | $66,600 – $83,400 |
Specs and site conditions that change a Charleston bid
Size and finish level
HomeGuide puts a 2-car detached garage at $20,000-$57,600, with the spread driven by how finished it is.
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.
Is Charleston cheap or dear? The local comparison
Of the five closest metros, all are cheaper than Charleston. Savannah is the lowest at about $38,300 (midpoint, 576 sq ft), 95 miles away.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Charleston, SCthis page | $26,700 – $53,500 | $40,100 | |
| Hilton Head, SC65 miles | $26,500 – $53,100 | $39,800 | −1% |
| Florence, SC80 miles | $26,300 – $52,800 | $39,500 | −1% |
| Myrtle Beach, SC85 miles | $25,600 – $51,300 | $38,400 | −4% |
| Columbia, SC95 miles | $26,200 – $52,600 | $39,400 | −2% |
| Savannah, GA95 miles | $25,400 – $51,100 | $38,300 | −5% |
| South Carolina (statewide) | $26,500 – $53,100 | $39,800 | −1% |
| United States | $29,000 – $58,100 | $43,500 | +9% |
Out of the 300 metros we cover, Charleston ranks #193 for the cost of this job (#1 is the most expensive). Statewide, Charleston is 1% above the South Carolina figure.
Elsewhere in South Carolina
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Greenville, SC | 434,900 jobs | $26,600 – $53,300 | $40,000 | level |
| Columbia, SC | 394,200 jobs | $26,200 – $52,600 | $39,400 | −2% |
| Spartanburg, SC | 165,150 jobs | $26,500 – $53,100 | $39,800 | −1% |
| Myrtle Beach, SC | 146,260 jobs | $25,600 – $51,300 | $38,400 | −4% |
| Florence, SC | 89,060 jobs | $26,300 – $52,800 | $39,500 | −1% |
| Hilton Head, SC | 81,920 jobs | $26,500 – $53,100 | $39,800 | −1% |
Metros of a similar size
Big cities and small ones price differently, so here is Charleston against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Columbia, SC | 394,200 jobs | $26,200 – $52,600 | $39,400 | −2% |
| Boise, ID | 391,790 jobs | $27,400 – $55,100 | $41,200 | +3% |
| Des Moines, IA | 404,130 jobs | $28,200 – $56,600 | $42,400 | +6% |
| Tucson, AZ | 389,630 jobs | $26,700 – $53,600 | $40,100 | level |
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Detached garage in Charleston: your questions
+How much does it cost to build a detached garage in Charleston?
For 576 sq ft, expect $26,700 to $53,500 in the Charleston area. A standard-spec job lands at $34,700 to $45,500. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for detached garage in Charleston?
About $46 to $92 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 Charleston or Hilton Head?
Hilton Head is 65 miles away. The midpoint for 576 sq ft there is $39,800, which is 1% less than Charleston ($40,100). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Charleston?
About 47% at the midpoint, or $19,000 out of $40,100. Materials are 52% and permits 1%. Nationally, labor is 50%.
+What would 2.5-car (24x30), 720 sq ft cost in Charleston?
$33,300 to $66,800. Pick a different size in the estimator above to get your own number.
+Does detached garage need a permit in Charleston?
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 Charleston area (our national range of $150 to $500 scaled by the local price level).
+Is Charleston expensive for detached garage compared with the rest of South Carolina?
Charleston is 1% above the South Carolina statewide estimate ($39,800 at the midpoint). We cover 7 metros in South Carolina; see the state page to compare them.
+What do carpenters earn in Charleston?
The BLS median is $24.22 an hour in the Charleston area, compared with $29.12 nationally. The 25th to 75th percentile range is $21.37 to $29.52.
+What do basic and premium detached garage work cost in Charleston?
For 576 sq ft, basic work runs $26,700 to $37,400 and premium work $42,800 to $53,500. Basic means: basic shell: slab, framing, siding, a roll-up door. Premium means: insulated and drywalled, heat and cooling, upgraded finishes.
+Is there a bad season to build a detached garage in Charleston?
Not from a temperature point of view. NOAA's 1991-2020 normals show no month with a freezing-level overnight low or a 90°F-plus average high, so timing is mostly about contractor availability and rain.
Detached garage near Charleston
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).