Home addition cost in Lake Charles, LA
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (300 sq ft)
- $33,100 – $67,100
- Per sq ft
- $109 – $218
- before permit
- Versus US midpoint
- −13%
- US $57,500
- Rank of 300 metros
- #237
- 1 = most expensive
A home addition in Lake Charles, LA usually costs $33,100 to $67,100 for 300 sq ft. That works out to about $109 to $218 per sq ft before permits. Compared with the national midpoint that is $7,400 less. Carpenters earn a median of $22.08 an hour in the Lake Charles area, 24% below the US median of $29.12.
Estimate your home addition cost
Pick a size, a quality level and where you live. Prices update as you type.
Estimated cost for 300 sq ft in Lake Charles, LA, standard level
$43,300 to $56,900
About $142 to $185 per sq ft before permits. Labor is about 64% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $14,600 | $19,100 |
| Labor | $27,900 | $36,500 |
| Permits and fees | $820 | $1,350 |
| Total | $43,300 | $56,900 |
Cost breakdown for 300 sq ft in Lake Charles, LA
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $11,200 | $16,900 | $22,500 | 34% |
| Labor | $21,400 | $32,200 | $42,900 | 64% |
| Permits and fees | $430 | $1,050 | $1,700 | 2% |
| Total | $33,100 | $50,100 | $67,100 | 100% |
Where the Lake Charles price comes from
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, Lake Charles wages are 0.84 times the national level. Labor makes up about 64% of the midpoint estimate (67% at national prices).
Materials are scaled with BEA's regional price parity for goods. Lake Charles is at 93.7 against 100 for the US, so a materials line of $18,000 nationally becomes $16,900 here (midpoint, 300 sq ft). Permits follow the all-items index of 85.9: $430 to $1,700.
Data note: 30% of the labor weighting for this project uses a statewide median because BLS has no published metro figure for that trade in Lake Charles. The wage table below marks each row.
Cost by quality level and size in Lake Charles
The cited range is split into basic, standard and premium bands, then scaled to Lake Charles. 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
$33,100 to $46,700
Bump-out or simple room without plumbing
Standard
$43,300 to $56,900
Standard room addition with HVAC and electrical
Premium
$53,500 to $67,100
Large addition with bath or kitchen and a new foundation
| Size | Basic | Standard | Premium |
|---|---|---|---|
| bump-out (100 sq ft) | $11,300 – $16,200 | $15,000 – $19,900 | $18,600 – $23,500 |
| 20x20 room (400 sq ft) | $44,000 – $62,000 | $57,500 – $75,400 | $70,900 – $88,900 |
| large suite (600 sq ft) | $65,800 – $92,500 | $85,800 – $112,500 | $106,000 – $132,500 |
Home addition: what moves the price in Lake Charles
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.
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).
What local crews earn in Lake Charles
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 Lake Charles the blend is 0.84.
Carpenters (47-2031), 50% of the weighting: a median of $22.08 an hour, 24% below the US median of $29.12. The middle half of them earn between $16.13 and $28.48 an hour. About 630 work in the metro. That is 62.0 per 10,000 jobs, compared with 43.1 nationally, which suggests plenty of local crews to bid.
Cement masons and concrete finishers (47-2051) carry 10% of the labor weighting. BLS does not publish this trade for the Lake Charles metro, so we used the Louisiana statewide median: $23.64 an hour against $27.41 for the US. The middle half of them earn between $19.54 and $30.00 an hour.
For electricians (47-2111, weighted 10%) the local median is $30.59 an hour, which is in line with the national $30.38. The middle half of them earn between $23.38 and $34.83 an hour. BLS counts 590 of them working in the area, 58.0 for every 10,000 jobs (US: 48.7), so the local bench is deeper than average.
Plumbers, pipefitters and steamfitters (47-2152), 10% of the weighting: a median of $32.69 an hour, 7% above the US median of $30.67. The middle half of them earn between $28.59 and $35.49 an hour. About 560 work in the metro. That is 55.1 per 10,000 jobs, compared with 30.0 nationally, which suggests plenty of local crews to bid.
Drywall and ceiling tile installers (47-2081) carry 10% of the labor weighting. BLS does not publish this trade for the Lake Charles metro, so we used the Louisiana statewide median: $22.80 an hour against $28.33 for the US. The middle half of them earn between $16.01 and $29.20 an hour.
Roofers (47-2181) carry 10% of the labor weighting. BLS does not publish this trade for the Lake Charles metro, so we used the Louisiana statewide median: $23.44 an hour against $26.65 for the US. The middle half of them earn between $18.74 and $27.02 an hour.
A quick sensitivity check: moving the lead trade (carpenters) from the median to the 75th percentile wage adds about $4,200 to the midpoint estimate; the 25th percentile takes off about $3,900. That is a swing of roughly 7.8% to 8.4% of the total, which is useful for judging whether a bid reflects wages or something else, such as scope or margin.
Lake Charles has 101,690 jobs in total (BLS, May 2025), ranking 202nd 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% | $16.13 | $22.08 | $28.48 | $29.12 | 0.76 | metro |
| Cement masons and concrete finishers (47-2051) | 10% | $19.54 | $23.64 | $30.00 | $27.41 | 0.86 | state |
| Electricians (47-2111) | 10% | $23.38 | $30.59 | $34.83 | $30.38 | 1.01 | metro |
| Plumbers, pipefitters and steamfitters (47-2152) | 10% | $28.59 | $32.69 | $35.49 | $30.67 | 1.07 | metro |
| Drywall and ceiling tile installers (47-2081) | 10% | $16.01 | $22.80 | $29.20 | $28.33 | 0.80 | state |
| Roofers (47-2181) | 10% | $18.74 | $23.44 | $27.02 | $26.65 | 0.88 | state |
| Blended | 100% | 0.84 | |||||
What nearby projects cost in Lake Charles
Jobs that often go together with home addition are priced below at their usual sizes, using the same Lake Charles wage and price inputs. Compared with national midpoints, kitchen remodel comes out highest (−8%) and detached garage lowest (−11%); the gap comes from the trades each job uses.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Kitchen remodel | 120 sq ft | $17,000 – $28,900 | −8% |
| Bathroom remodel | 45 sq ft | $4,300 – $21,200 | −9% |
| Detached garage | 576 sq ft | $25,900 – $51,900 | −11% |
| Roof replacement | 2,000 sq ft of roof | $5,500 – $11,400 | −9% |
Lake Charles weather and the home addition calendar
Climate numbers on this page come from NOAA's 1991-2020 U.S. Climate Normals at the nearest suitable station, Lake Charles (5 miles from the city center). They are 30-year averages, so any one year can run hotter, colder or wetter.
For digging, grading and setting material in the ground, the comfortable months in Lake Charles are September through May: 9 of 12. Outside them, June, July and August have an average daytime high of 90°F or more.
Lake Charles gets about 60 inches of precipitation in a normal year. The wettest months are January, June and August (6.5 inches in June). Inside the workable window, February and March are the driest, at 3.3 and 3.7 inches. The station averages about 88 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 | 63 | 43 | 5.9 | Workable |
| Feb | 67 | 47 | 3.3 | Workable |
| Mar | 73 | 53 | 3.7 | Workable |
| Apr | 79 | 59 | 4.4 | Workable |
| May | 85 | 67 | 5.4 | Workable |
| Jun | 91 | 74 | 6.5 | Hot |
| Jul | 92 | 76 | 5.7 | Hot |
| Aug | 93 | 75 | 6.2 | Hot |
| Sep | 89 | 71 | 5.2 | Workable |
| Oct | 82 | 60 | 4.8 | Workable |
| Nov | 72 | 51 | 4.1 | Workable |
| Dec | 65 | 45 | 4.6 | Workable |
Lake Charles against nearby metros and the rest of Louisiana
Same job, same size (300 sq ft), priced for the nearest metros. Baton Rouge is the priciest of the group at $54,600. Alexandria is the cheapest at $48,900.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Lake Charles, LAthis page | $33,100 – $67,100 | $50,100 | |
| Beaumont, TX60 miles | $35,300 – $71,400 | $53,400 | +6% |
| Lafayette, LA65 miles | $33,100 – $67,000 | $50,000 | level |
| Alexandria, LA95 miles | $32,300 – $65,500 | $48,900 | −2% |
| Baton Rouge, LA125 miles | $36,100 – $73,100 | $54,600 | +9% |
| Houston, TX130 miles | $34,100 – $69,200 | $51,600 | +3% |
| Louisiana (statewide) | $33,700 – $68,300 | $51,000 | +2% |
| United States | $38,000 – $77,000 | $57,500 | +15% |
Out of the 300 metros we cover, Lake Charles ranks #237 for the cost of this job (#1 is the most expensive). Statewide, Lake Charles is 2% below the Louisiana figure.
Elsewhere in Louisiana
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| New Orleans, LA | 445,550 jobs | $33,800 – $68,500 | $51,100 | +2% |
| Baton Rouge, LA | 409,690 jobs | $36,100 – $73,100 | $54,600 | +9% |
| Lafayette, LA | 179,570 jobs | $33,100 – $67,000 | $50,000 | level |
| Shreveport, LA | 162,750 jobs | $32,800 – $66,500 | $49,600 | −1% |
| Slidell, LA | 98,240 jobs | $33,000 – $66,900 | $50,000 | level |
| Monroe, LA | 87,500 jobs | $32,700 – $66,300 | $49,500 | −1% |
Metros of a similar size
Big cities and small ones price differently, so here is Lake Charles against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Lafayette, IN | 102,200 jobs | $37,500 – $75,900 | $56,700 | +13% |
| Springfield, IL | 100,810 jobs | $44,200 – $89,400 | $66,800 | +33% |
| Clarksville, TN | 103,220 jobs | $33,000 – $66,900 | $50,000 | level |
| Santa Cruz, CA | 98,500 jobs | $44,100 – $89,300 | $66,700 | +33% |
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 $43,300 to $56,900 for Lake Charles, LA is attached.
Take this estimate with you: PDF report, $9
Multi-page report for Lake Charles, LA: low, typical and high cost, a line-item breakdown of materials and labor by trade, permit notes, the best months to schedule, a quote comparison sheet, red flags, questions for contractors, checklists and every source. 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 Lake Charles: your questions
+How much does it cost to build a home addition in Lake Charles?
For 300 sq ft, expect $33,100 to $67,100 in the Lake Charles area. A standard-spec job lands at $43,300 to $56,900. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for home addition in Lake Charles?
About $109 to $218 per sq ft for materials and labor, plus $430 to $1,700 for the permit if one is needed. The US range is $125 to $250.
+Is home addition cheaper in Lake Charles or Beaumont?
Beaumont is 60 miles away. The midpoint for 300 sq ft there is $53,400, which is 6% more than Lake Charles ($50,100). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Lake Charles?
About 64% at the midpoint, or $32,200 out of $50,100. Materials are 34% and permits 2%. Nationally, labor is 67%.
+What would 20x20 room (400 sq ft) cost in Lake Charles?
$44,000 to $88,900. Pick a different size in the estimator above to get your own number.
+Does home addition need a permit in Lake Charles?
Often, but rules are set by your city or county building office, so call before you hire. Budget $430 to $1,700 for fees in the Lake Charles area (our national range of $500 to $2,000 scaled by the local price level).
+Is Lake Charles expensive for home addition compared with the rest of Louisiana?
Lake Charles is 2% below the Louisiana statewide estimate ($51,000 at the midpoint). We cover 9 metros in Louisiana; see the state page to compare them.
+What do carpenters earn in Lake Charles?
The BLS median is $22.08 an hour in the Lake Charles area, compared with $29.12 nationally. The 25th to 75th percentile range is $16.13 to $28.48.
+What do basic and premium home addition work cost in Lake Charles?
For 300 sq ft, basic work runs $33,100 to $46,700 and premium work $53,500 to $67,100. 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 Lake Charles?
Based on NOAA 1991-2020 normals, the comfortable months for this kind of work are September through May. February and March 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 Lake Charles
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.