Home addition cost in Miami, FL
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (300 sq ft)
- $35,100 – $71,300
- Per sq ft
- $115 – $230
- before permit
- Versus US midpoint
- −7%
- US $57,500
- Rank of 300 metros
- #170
- 1 = most expensive
Local price for a home addition in the Miami area: $35,100 to $71,300 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 7% lower than the US figure. Carpenters earn a median of $24.79 an hour in the Miami area, 15% below the US median of $29.12.
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Estimated cost for 300 sq ft in Miami, FL, standard level
$46,000 to $60,500
About $150 to $196 per sq ft before permits. Labor is about 62% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $16,200 | $21,100 |
| Labor | $28,700 | $37,600 |
| Permits and fees | $1,100 | $1,750 |
| Total | $46,000 | $60,500 |
Cost breakdown for 300 sq ft in Miami, FL
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $12,400 | $18,600 | $24,900 | 35% |
| Labor | $22,100 | $33,100 | $44,200 | 62% |
| Permits and fees | $570 | $1,450 | $2,300 | 3% |
| Total | $35,100 | $53,200 | $71,300 | 100% |
Why Miami 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, Miami wages are 0.87 times the national level. Labor makes up about 62% of the midpoint estimate (67% at national prices).
Materials are scaled with BEA's regional price parity for goods. Miami is at 103.6 against 100 for the US, so a materials line of $18,000 nationally becomes $18,600 here (midpoint, 300 sq ft). Permits follow the all-items index of 114.2: $570 to $2,300.
Specs and site conditions that change a Miami bid
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.
Who does the work: Miami 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 Miami the blend is 0.87.
Carpenters (47-2031), 50% of the weighting: a median of $24.79 an hour, 15% below the US median of $29.12. The middle half of them earn between $21.65 and $29.32 an hour. About 10,100 work in the metro. That is 35.8 per 10,000 jobs, compared with 43.1 nationally, so expect fewer local crews to bid.
Cement masons and concrete finishers (47-2051), 10% of the weighting: a median of $23.49 an hour, 14% below the US median of $27.41. The middle half of them earn between $23.04 and $27.86 an hour. About 3,820 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 $28.19 an hour, which is 7% below the national $30.38. The middle half of them earn between $23.59 and $30.40 an hour. BLS counts 12,990 of them working in the area, 46.1 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 $27.77 an hour, 9% below the US median of $30.67. The middle half of them earn between $22.86 and $30.75 an hour. About 5,930 work in the metro. That is 21.0 per 10,000 jobs, compared with 30.0 nationally, so expect fewer local crews to bid.
For drywall and ceiling tile installers (47-2081, weighted 10%) the local median is $24.12 an hour, which is 15% below the national $28.33. The middle half of them earn between $23.10 and $28.00 an hour. BLS counts 1,300 of them working in the area, 4.6 for every 10,000 jobs (US: 5.3), so the local bench is about 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 $18.29 and $25.06 an hour. About 5,290 work in the metro. That is 18.8 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 $3,000 to the midpoint estimate; the 25th percentile takes off about $2,050. That is a swing of roughly 3.9% to 5.6% of the total, which is useful for judging whether a bid reflects wages or something else, such as scope or margin.
Miami-Fort Lauderdale-West Palm Beach has 2,819,940 jobs in total (BLS, May 2025), ranking 9th 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% | $21.65 | $24.79 | $29.32 | $29.12 | 0.85 | metro |
| Cement masons and concrete finishers (47-2051) | 10% | $23.04 | $23.49 | $27.86 | $27.41 | 0.86 | metro |
| Electricians (47-2111) | 10% | $23.59 | $28.19 | $30.40 | $30.38 | 0.93 | metro |
| Plumbers, pipefitters and steamfitters (47-2152) | 10% | $22.86 | $27.77 | $30.75 | $30.67 | 0.91 | metro |
| Drywall and ceiling tile installers (47-2081) | 10% | $23.10 | $24.12 | $28.00 | $28.33 | 0.85 | metro |
| Roofers (47-2181) | 10% | $18.29 | $23.09 | $25.06 | $26.65 | 0.87 | metro |
| Blended | 100% | 0.87 | |||||
Is Miami cheap or dear? The local comparison
Same job, same size (300 sq ft), priced for the nearest metros. Miami is the priciest of the group. Sebastian is the cheapest at $50,200.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Miami, FLthis page | $35,100 – $71,300 | $53,200 | |
| Naples, FL55 miles | $34,000 – $69,000 | $51,500 | −3% |
| Port St. Lucie, FL80 miles | $33,100 – $67,300 | $50,200 | −6% |
| Cape Coral, FL100 miles | $33,200 – $67,400 | $50,300 | −6% |
| Punta Gorda, FL110 miles | $33,200 – $67,500 | $50,400 | −5% |
| Sebastian, FL110 miles | $33,100 – $67,200 | $50,200 | −6% |
| Florida (statewide) | $33,700 – $68,400 | $51,100 | −4% |
| United States | $38,000 – $77,000 | $57,500 | +8% |
Out of the 300 metros we cover, Miami ranks #170 for the cost of this job (#1 is the most expensive). Statewide, Miami is 4% above the Florida figure.
Elsewhere in Florida
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Tampa, FL | 1,447,120 jobs | $33,900 – $68,700 | $51,300 | −4% |
| Orlando, FL | 1,411,730 jobs | $33,200 – $67,400 | $50,300 | −6% |
| Jacksonville, FL | 765,930 jobs | $33,900 – $68,900 | $51,400 | −3% |
| North Port, FL | 339,940 jobs | $34,100 – $69,200 | $51,600 | −3% |
| Cape Coral, FL | 304,790 jobs | $33,200 – $67,400 | $50,300 | −6% |
| Lakeland, FL | 265,280 jobs | $32,300 – $65,500 | $48,900 | −8% |
Metros of a similar size
Big cities and small ones price differently, so here is Miami against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Atlanta, GA | 2,889,670 jobs | $34,900 – $70,700 | $52,800 | −1% |
| Boston, MA | 2,703,890 jobs | $44,300 – $89,700 | $67,000 | +26% |
| Philadelphia, PA | 2,897,830 jobs | $39,300 – $79,600 | $59,400 | +12% |
| Phoenix, AZ | 2,375,760 jobs | $36,700 – $74,500 | $55,600 | +5% |
Planning more than one job in Miami?
Jobs that often go together with home addition are priced below at their usual sizes, using the same Miami wage and price inputs. Compared with national midpoints, kitchen remodel comes out highest (+1%) and roof replacement lowest (−6%); the gap comes from the trades each job uses.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Kitchen remodel | 120 sq ft | $18,600 – $31,800 | +1% |
| Bathroom remodel | 45 sq ft | $4,550 – $22,400 | −4% |
| Detached garage | 576 sq ft | $27,800 – $55,900 | −4% |
| Roof replacement | 2,000 sq ft of roof | $5,650 – $11,900 | −6% |
Cost by quality level and size in Miami
The cited range is split into basic, standard and premium bands, then scaled to Miami. 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
$35,100 to $49,600
Bump-out or simple room without plumbing
Standard
$46,000 to $60,500
Standard room addition with HVAC and electrical
Premium
$56,800 to $71,300
Large addition with bath or kitchen and a new foundation
| Size | Basic | Standard | Premium |
|---|---|---|---|
| bump-out (100 sq ft) | $12,100 – $17,400 | $16,000 – $21,300 | $20,000 – $25,300 |
| 20x20 room (400 sq ft) | $46,600 – $65,700 | $60,900 – $80,000 | $75,200 – $94,300 |
| large suite (600 sq ft) | $69,600 – $97,900 | $90,800 – $119,000 | $112,000 – $140,500 |
The best months for home addition in Miami
Climate numbers on this page come from NOAA's 1991-2020 U.S. Climate Normals at the nearest suitable station, Miami Beach (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 digging, grading and setting material in the ground in Miami: no month in the averages is cold enough (an average overnight low at or below freezing (32°F)) or hot enough (an average daytime high of 90°F or more) to rule it out, so the workable window is all year.
Miami gets about 57 inches of precipitation in a normal year. The wettest months are June, August and September (8.4 inches in September). The station averages about 30 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 | 74 | 61 | 2.3 | Workable |
| Feb | 75 | 63 | 2.3 | Workable |
| Mar | 77 | 65 | 2.5 | Workable |
| Apr | 80 | 70 | 3.4 | Workable |
| May | 83 | 74 | 4.9 | Workable |
| Jun | 86 | 77 | 7.8 | Workable |
| Jul | 88 | 78 | 6.0 | Workable |
| Aug | 88 | 78 | 7.5 | Workable |
| Sep | 87 | 77 | 8.4 | Workable |
| Oct | 84 | 74 | 6.5 | Workable |
| Nov | 79 | 69 | 3.3 | Workable |
| Dec | 76 | 65 | 2.3 | Workable |
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Home addition in Miami: your questions
+How much does it cost to build a home addition in Miami?
For 300 sq ft, expect $35,100 to $71,300 in the Miami area. A standard-spec job lands at $46,000 to $60,500. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for home addition in Miami?
About $115 to $230 per sq ft for materials and labor, plus $570 to $2,300 for the permit if one is needed. The US range is $125 to $250.
+Is home addition cheaper in Miami or Naples?
Naples is 55 miles away. The midpoint for 300 sq ft there is $51,500, which is 3% less than Miami ($53,200). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Miami?
About 62% at the midpoint, or $33,100 out of $53,200. Materials are 35% and permits 3%. Nationally, labor is 67%.
+What would 20x20 room (400 sq ft) cost in Miami?
$46,600 to $94,300. Pick a different size in the estimator above to get your own number.
+Does home addition need a permit in Miami?
Often, but rules are set by your city or county building office, so call before you hire. Budget $570 to $2,300 for fees in the Miami area (our national range of $500 to $2,000 scaled by the local price level).
+Is Miami expensive for home addition compared with the rest of Florida?
Miami is 4% above the Florida statewide estimate ($51,100 at the midpoint). We cover 19 metros in Florida; see the state page to compare them.
+What do carpenters earn in Miami?
The BLS median is $24.79 an hour in the Miami area, compared with $29.12 nationally. The 25th to 75th percentile range is $21.65 to $29.32.
+What do basic and premium home addition work cost in Miami?
For 300 sq ft, basic work runs $35,100 to $49,600 and premium work $56,800 to $71,300. Basic means: bump-out or simple room without plumbing. Premium means: large addition with bath or kitchen and a new foundation.
+Is there a bad season to build a home addition in Miami?
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.
Home addition near Miami
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.