Home addition cost in Hattiesburg, MS
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (300 sq ft)
- $31,700 – $64,300
- Per sq ft
- $104 – $208
- before permit
- Versus US midpoint
- −17%
- US $57,500
- Rank of 300 metros
- #285
- 1 = most expensive
If you want to build a home addition in Hattiesburg, plan on $31,700 to $64,300 for 300 sq ft, all in. Per sq ft, that is $104 to $208 for materials and labor, with the permit on top. The local midpoint runs 17% lower than the national one. Carpenters earn a median of $23.25 an hour in the Hattiesburg area, 20% below the US median of $29.12.
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Estimated cost for 300 sq ft in Hattiesburg, MS, standard level
$41,500 to $54,500
About $136 to $177 per sq ft before permits. Labor is about 62% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $15,000 | $19,600 |
| Labor | $25,600 | $33,500 |
| Permits and fees | $830 | $1,350 |
| Total | $41,500 | $54,500 |
Cost breakdown for 300 sq ft in Hattiesburg, MS
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $11,500 | $17,300 | $23,100 | 36% |
| Labor | $19,700 | $29,600 | $39,500 | 62% |
| Permits and fees | $440 | $1,100 | $1,750 | 2% |
| Total | $31,700 | $48,000 | $64,300 | 100% |
What is behind the Hattiesburg number
The wage side of the estimate leans on carpenters, who do 50% of the hours on a typical job. Their local median is $23.25 an hour. Add the other trades involved and the blended wage index for Hattiesburg is 0.77 (US = 1.00), which puts labor at 62% of the total.
On the materials line, the BEA goods price index for the Hattiesburg metro is 96.2 (US = 100). The midpoint materials bill for 300 sq ft comes to $17,300, compared with $18,000 at national prices. Permit and inspection fees are scaled by the broader index (87.6) and land at $440 to $1,750.
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 Hattiesburg. The wage table below marks each row.
Related projects, priced for Hattiesburg
Because every project leans on different trades, Hattiesburg's wage level does not move all prices equally. Against the US midpoint, kitchen remodel runs −8% and bathroom remodel −15%.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Kitchen remodel | 120 sq ft | $17,000 – $29,000 | −8% |
| Bathroom remodel | 45 sq ft | $4,000 – $19,800 | −15% |
| Detached garage | 576 sq ft | $25,300 – $50,700 | −13% |
| Roof replacement | 2,000 sq ft of roof | $5,050 – $10,700 | −15% |
Hattiesburg 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 Hattiesburg is 0.77 times the national level.
For carpenters (47-2031, weighted 50%) the local median is $23.25 an hour, which is 20% below the national $29.12. The middle half of them earn between $17.93 and $24.10 an hour. BLS counts 210 of them working in the area, 33.7 for every 10,000 jobs (US: 43.1), so the local bench is thinner than average.
Cement masons and concrete finishers (47-2051) carry 10% of the labor weighting. BLS does not publish this trade for the Hattiesburg metro, so we used the Mississippi statewide median: $21.14 an hour against $27.41 for the US. The middle half of them earn between $17.50 and $22.89 an hour.
Electricians (47-2111), 10% of the weighting: a median of $23.35 an hour, 23% below the US median of $30.38. The middle half of them earn between $20.29 and $31.16 an hour. About 240 work in the metro. That is 38.6 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 $24.01 an hour, which is 22% below the national $30.67. The middle half of them earn between $22.00 and $30.00 an hour. BLS counts 80 of them working in the area, 12.9 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 Hattiesburg metro, so we used the Mississippi statewide median: $17.94 an hour against $28.33 for the US. The middle half of them earn between $14.46 and $21.42 an hour.
For roofers (47-2181, weighted 10%) the local median is $21.00 an hour, which is 21% below the national $26.65. The middle half of them earn between $17.43 and $22.01 an hour. BLS counts 30 of them working in the area, 4.8 for every 10,000 jobs (US: 8.7), so the local bench is thinner than average.
Quotes come from real crews, not medians. If the carpenters on your job are paid at the 75th percentile ($24.10 an hour) instead of the median, the labor line grows by about $560. At the 25th percentile ($17.93) it shrinks by about $3,500. The total moves by 1.2% or 7.3%, so wages alone rarely explain a quote that is far outside our range.
For context on the local economy, BLS counts 62,230 jobs in the Hattiesburg area. That makes it the 280th largest of the 300 metros we cover, with 0.04% of US employment.
| Trade | Weight | 25th pct | Median | 75th pct | US median | Ratio | Level used |
|---|---|---|---|---|---|---|---|
| Carpenters (47-2031) | 50% | $17.93 | $23.25 | $24.10 | $29.12 | 0.80 | metro |
| Cement masons and concrete finishers (47-2051) | 10% | $17.50 | $21.14 | $22.89 | $27.41 | 0.77 | state |
| Electricians (47-2111) | 10% | $20.29 | $23.35 | $31.16 | $30.38 | 0.77 | metro |
| Plumbers, pipefitters and steamfitters (47-2152) | 10% | $22.00 | $24.01 | $30.00 | $30.67 | 0.78 | metro |
| Drywall and ceiling tile installers (47-2081) | 10% | $14.46 | $17.94 | $21.42 | $28.33 | 0.63 | state |
| Roofers (47-2181) | 10% | $17.43 | $21.00 | $22.01 | $26.65 | 0.79 | metro |
| Blended | 100% | 0.77 | |||||
Home addition: what moves the price in Hattiesburg
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).
Cost by quality level and size in Hattiesburg
Three bands are cut from the same cited range and localized for Hattiesburg 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
$31,700 to $44,700
Bump-out or simple room without plumbing
Standard
$41,500 to $54,500
Standard room addition with HVAC and electrical
Premium
$51,300 to $64,300
Large addition with bath or kitchen and a new foundation
| Size | Basic | Standard | Premium |
|---|---|---|---|
| bump-out (100 sq ft) | $10,900 – $15,600 | $14,400 – $19,100 | $17,900 – $22,600 |
| 20x20 room (400 sq ft) | $42,100 – $59,300 | $55,000 – $72,200 | $67,900 – $85,100 |
| large suite (600 sq ft) | $63,000 – $88,500 | $82,100 – $107,500 | $101,500 – $127,000 |
Is Hattiesburg cheap or dear? The local comparison
Of the five closest metros, none is cheaper than Hattiesburg. Daphne comes closest at about $49,100.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Hattiesburg, MSthis page | $31,700 – $64,300 | $48,000 | |
| Gulfport, MS50 miles | $32,800 – $66,600 | $49,700 | +4% |
| Slidell, LA70 miles | $33,000 – $66,900 | $50,000 | +4% |
| Mobile, AL70 miles | $33,300 – $67,500 | $50,400 | +5% |
| Daphne, AL95 miles | $32,400 – $65,800 | $49,100 | +2% |
| Jackson, MS100 miles | $32,500 – $65,800 | $49,200 | +2% |
| Mississippi (statewide) | $32,500 – $66,000 | $49,300 | +3% |
| United States | $38,000 – $77,000 | $57,500 | +20% |
Across 300 US metros, Hattiesburg comes in at #285 from the top. The priciest is Honolulu, HI at $79,600; the cheapest is Brownsville, TX at $44,300 (midpoints, 300 sq ft). Statewide, Hattiesburg is 3% below the Mississippi figure.
Other Mississippi metros
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Jackson, MS | 270,730 jobs | $32,500 – $65,800 | $49,200 | +2% |
| Gulfport, MS | 158,310 jobs | $32,800 – $66,600 | $49,700 | +4% |
Cities with a workforce like Hattiesburg's
Big cities and small ones price differently, so here is Hattiesburg against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Vineland, NJ | 62,300 jobs | $41,500 – $84,000 | $62,700 | +31% |
| Pueblo, CO | 61,780 jobs | $36,100 – $73,200 | $54,600 | +14% |
| Muskegon, MI | 62,340 jobs | $35,900 – $72,800 | $54,400 | +13% |
| Santa Fe, NM | 61,770 jobs | $35,600 – $72,200 | $53,900 | +12% |
Climate in Hattiesburg: timing your home addition job
We use NOAA's 1991-2020 climate normals for Hattiesburg Chain Muni Ap (5 miles from the city center). These are 30-year monthly averages, not forecasts.
September through May is the stretch where digging, grading and setting material in the ground runs into the fewest weather problems in Hattiesburg (9 of 12 months). June, July and August have an average daytime high of 90°F or more.
Hattiesburg gets about 59 inches of precipitation in a normal year. The wettest months are January, June and July (5.8 inches in June). Inside the workable window, October and November are the driest, at 3.7 and 3.7 inches. The station averages about 96 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 | 60 | 38 | 5.8 | Workable |
| Feb | 65 | 42 | 4.9 | Workable |
| Mar | 72 | 48 | 5.6 | Workable |
| Apr | 78 | 54 | 5.4 | Workable |
| May | 85 | 62 | 4.4 | Workable |
| Jun | 90 | 70 | 5.8 | Hot |
| Jul | 92 | 72 | 5.7 | Hot |
| Aug | 92 | 72 | 4.8 | Hot |
| Sep | 88 | 67 | 4.2 | Workable |
| Oct | 80 | 55 | 3.7 | Workable |
| Nov | 69 | 44 | 3.7 | Workable |
| Dec | 62 | 41 | 5.0 | Workable |
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 $41,500 to $54,500 for Hattiesburg, MS is attached.
Detailed home addition report for Hattiesburg, MS, $9
The report lays out the home addition numbers for Hattiesburg, MS 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 Hattiesburg: your questions
+How much does it cost to build a home addition in Hattiesburg?
For 300 sq ft, expect $31,700 to $64,300 in the Hattiesburg area. A standard-spec job lands at $41,500 to $54,500. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for home addition in Hattiesburg?
About $104 to $208 per sq ft for materials and labor, plus $440 to $1,750 for the permit if one is needed. The US range is $125 to $250.
+Is home addition cheaper in Hattiesburg or Gulfport?
Gulfport is 50 miles away. The midpoint for 300 sq ft there is $49,700, which is 4% more than Hattiesburg ($48,000). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Hattiesburg?
About 62% at the midpoint, or $29,600 out of $48,000. Materials are 36% and permits 2%. Nationally, labor is 67%.
+What would 20x20 room (400 sq ft) cost in Hattiesburg?
$42,100 to $85,100. Pick a different size in the estimator above to get your own number.
+Does home addition need a permit in Hattiesburg?
Often, but rules are set by your city or county building office, so call before you hire. Budget $440 to $1,750 for fees in the Hattiesburg area (our national range of $500 to $2,000 scaled by the local price level).
+Is Hattiesburg expensive for home addition compared with the rest of Mississippi?
Hattiesburg is 3% below the Mississippi statewide estimate ($49,300 at the midpoint). We cover 3 metros in Mississippi; see the state page to compare them.
+What do carpenters earn in Hattiesburg?
The BLS median is $23.25 an hour in the Hattiesburg area, compared with $29.12 nationally. The 25th to 75th percentile range is $17.93 to $24.10.
+What do basic and premium home addition work cost in Hattiesburg?
For 300 sq ft, basic work runs $31,700 to $44,700 and premium work $51,300 to $64,300. 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 Hattiesburg?
Based on NOAA 1991-2020 normals, the comfortable months for this kind of work are September through May. October 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 Hattiesburg
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.