Home addition cost in Lexington Park, MD
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (300 sq ft)
- $37,900 – $76,900
- Per sq ft
- $125 – $250
- before permit
- Versus US midpoint
- Level
- US $57,500
- Rank of 300 metros
- #118
- 1 = most expensive
If you want to build a home addition in Lexington Park, plan on $37,900 to $76,900 for 300 sq ft, all in. Per sq ft, that is $125 to $250 for materials and labor, with the permit on top. The local midpoint lands close to the national one. Building materials run about 0% below the US average here (BEA goods price index 99.7).
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 Lexington Park, MD, standard level
$49,600 to $65,200
About $162 to $212 per sq ft before permits. Labor is about 67% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $15,500 | $20,300 |
| Labor | $33,100 | $43,300 |
| Permits and fees | $960 | $1,550 |
| Total | $49,600 | $65,200 |
Cost breakdown for 300 sq ft in Lexington Park, MD
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $12,000 | $17,900 | $23,900 | 31% |
| Labor | $25,500 | $38,200 | $51,000 | 67% |
| Permits and fees | $500 | $1,250 | $2,000 | 2% |
| Total | $37,900 | $57,400 | $76,900 | 100% |
Why Lexington Park 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, Lexington Park wages are 1.00 times the national level. Labor makes up about 67% of the midpoint estimate (67% at national prices).
On the materials line, the BEA goods price index for the Lexington Park metro is 99.7 (US = 100). The midpoint materials bill for 300 sq ft comes to $17,900, compared with $18,000 at national prices. Permit and inspection fees are scaled by the broader index (100.8) and land at $500 to $2,000.
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 Lexington Park. The wage table below marks each row.
Pick a size, pick a tier: home addition pricing in Lexington Park
Three bands are cut from the same cited range and localized for Lexington Park 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
$37,900 to $53,500
Bump-out or simple room without plumbing
Standard
$49,600 to $65,200
Standard room addition with HVAC and electrical
Premium
$61,300 to $76,900
Large addition with bath or kitchen and a new foundation
| Size | Basic | Standard | Premium |
|---|---|---|---|
| bump-out (100 sq ft) | $13,000 – $18,600 | $17,200 – $22,800 | $21,400 – $27,000 |
| 20x20 room (400 sq ft) | $50,400 – $71,000 | $65,900 – $86,400 | $81,300 – $102,000 |
| large suite (600 sq ft) | $75,400 – $106,000 | $98,300 – $129,000 | $121,000 – $152,000 |
What nearby projects cost in Lexington Park
Because every project leans on different trades, Lexington Park's wage level does not move all prices equally. Against the US midpoint, roof replacement runs +4% and bathroom remodel −4%.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Kitchen remodel | 120 sq ft | $18,400 – $31,300 | −1% |
| Bathroom remodel | 45 sq ft | $4,550 – $22,400 | −4% |
| Detached garage | 576 sq ft | $28,900 – $58,100 | level |
| Roof replacement | 2,000 sq ft of roof | $6,400 – $13,000 | +4% |
Lexington Park 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 Lexington Park is 1.00 times the national level.
For carpenters (47-2031, weighted 50%) the local median is $30.23 an hour, which is 4% above the national $29.12. The middle half of them earn between $26.36 and $35.38 an hour. BLS counts 210 of them working in the area, 29.7 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 Lexington Park metro, so we used the Maryland statewide median: $24.98 an hour against $27.41 for the US. The middle half of them earn between $22.75 and $28.44 an hour.
Electricians (47-2111), 10% of the weighting: a median of $29.59 an hour, in line with the US median of $30.38. The middle half of them earn between $24.62 and $44.46 an hour. About 340 work in the metro. That is 48.1 per 10,000 jobs, compared with 48.7 nationally, so the supply of crews looks typical.
For plumbers, pipefitters and steamfitters (47-2152, weighted 10%) the local median is $27.74 an hour, which is 10% below the national $30.67. The middle half of them earn between $23.62 and $35.64 an hour. BLS counts 260 of them working in the area, 36.8 for every 10,000 jobs (US: 30.0), so the local bench is deeper than average.
Drywall and ceiling tile installers (47-2081) carry 10% of the labor weighting. BLS does not publish this trade for the Lexington Park metro, so we used the Maryland statewide median: $26.29 an hour against $28.33 for the US. The middle half of them earn between $22.96 and $29.22 an hour.
Roofers (47-2181) carry 10% of the labor weighting. BLS does not publish this trade for the Lexington Park metro, so we used the Maryland statewide median: $28.89 an hour against $26.65 for the US. The middle half of them earn between $23.20 and $36.08 an hour.
Quotes come from real crews, not medians. If the carpenters on your job are paid at the 75th percentile ($35.38 an hour) instead of the median, the labor line grows by about $3,400. At the 25th percentile ($26.36) it shrinks by about $2,550. The total moves by 5.9% or 4.4%, so wages alone rarely explain a quote that is far outside our range.
For context on the local economy, BLS counts 70,650 jobs in the Lexington Park area. That makes it the 259th largest of the 300 metros we cover, with 0.05% of US employment.
| Trade | Weight | 25th pct | Median | 75th pct | US median | Ratio | Level used |
|---|---|---|---|---|---|---|---|
| Carpenters (47-2031) | 50% | $26.36 | $30.23 | $35.38 | $29.12 | 1.04 | metro |
| Cement masons and concrete finishers (47-2051) | 10% | $22.75 | $24.98 | $28.44 | $27.41 | 0.91 | state |
| Electricians (47-2111) | 10% | $24.62 | $29.59 | $44.46 | $30.38 | 0.97 | metro |
| Plumbers, pipefitters and steamfitters (47-2152) | 10% | $23.62 | $27.74 | $35.64 | $30.67 | 0.90 | metro |
| Drywall and ceiling tile installers (47-2081) | 10% | $22.96 | $26.29 | $29.22 | $28.33 | 0.93 | state |
| Roofers (47-2181) | 10% | $23.20 | $28.89 | $36.08 | $26.65 | 1.08 | state |
| Blended | 100% | 1.00 | |||||
Climate in Lexington Park: timing your home addition job
We use NOAA's 1991-2020 climate normals for Patuxent River Nas (5 miles from the city center). These are 30-year monthly averages, not forecasts.
March through December is the stretch where digging, grading and setting material in the ground runs into the fewest weather problems in Lexington Park (10 of 12 months). January and February have an average overnight low at or below freezing (32°F).
In January and February the average low is at or below freezing, which means frozen ground and slower digging, compaction and sod or stone placement. NOAA counts about 68 days a year with a low at or below 32°F at this station.
Lexington Park gets about 45 inches of precipitation in a normal year, including roughly 13 inches of snow. The wettest months are June, July and August (4.7 inches in August). Inside the workable window, November and December are the driest, at 3.1 and 3.5 inches. The station averages about 26 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 | 45 | 30 | 2.9 | Cold |
| Feb | 48 | 31 | 2.8 | Cold |
| Mar | 55 | 37 | 4.0 | Workable |
| Apr | 66 | 47 | 3.7 | Workable |
| May | 75 | 57 | 3.7 | Workable |
| Jun | 83 | 66 | 4.3 | Workable |
| Jul | 87 | 71 | 4.5 | Workable |
| Aug | 85 | 69 | 4.7 | Workable |
| Sep | 79 | 63 | 4.2 | Workable |
| Oct | 69 | 52 | 4.0 | Workable |
| Nov | 58 | 41 | 3.1 | Workable |
| Dec | 50 | 34 | 3.5 | Workable |
Lexington Park against nearby metros and the rest of Maryland
Same job, same size (300 sq ft), priced for the nearest metros. Washington is the priciest of the group at $60,100. Richmond is the cheapest at $52,000.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Lexington Park, MDthis page | $37,900 – $76,900 | $57,400 | |
| Washington, DC65 miles | $39,700 – $80,500 | $60,100 | +5% |
| Baltimore, MD70 miles | $38,100 – $77,300 | $57,700 | +1% |
| Dover, DE75 miles | $34,700 – $70,400 | $52,600 | −8% |
| Richmond, VA80 miles | $34,300 – $69,700 | $52,000 | −9% |
| Virginia Beach, VA100 miles | $34,400 – $69,800 | $52,100 | −9% |
| Maryland (statewide) | $39,100 – $79,300 | $59,200 | +3% |
| United States | $38,000 – $77,000 | $57,500 | level |
Across 300 US metros, Lexington Park comes in at #118 from the top. The priciest is Honolulu, HI at $79,600; the cheapest is Brownsville, TX at $44,300 (midpoints, 300 sq ft). Statewide, Lexington Park is 3% below the Maryland figure.
Other Maryland metros
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Baltimore, MD | 1,356,680 jobs | $38,100 – $77,300 | $57,700 | +1% |
| Hagerstown, MD | 107,170 jobs | $35,900 – $72,800 | $54,400 | −5% |
Cities with a workforce like Lexington Park's
Big cities and small ones price differently, so here is Lexington Park against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Bismarck, ND | 71,270 jobs | $35,600 – $72,100 | $53,800 | −6% |
| Janesville, WI | 69,870 jobs | $43,100 – $87,100 | $65,100 | +13% |
| Redding, CA | 71,550 jobs | $41,700 – $84,500 | $63,100 | +10% |
| Wausau, WI | 69,530 jobs | $37,000 – $74,900 | $55,900 | −3% |
Why two Lexington Park quotes can differ
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.
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 $49,600 to $65,200 for Lexington Park, MD is attached.
A detailed PDF report of this estimate, $9
Multi-page report for Lexington Park, MD: 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 Lexington Park: your questions
+How much does it cost to build a home addition in Lexington Park?
For 300 sq ft, expect $37,900 to $76,900 in the Lexington Park area. A standard-spec job lands at $49,600 to $65,200. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for home addition in Lexington Park?
About $125 to $250 per sq ft for materials and labor, plus $500 to $2,000 for the permit if one is needed. The US range is $125 to $250.
+Is home addition cheaper in Lexington Park or Washington?
Washington is 65 miles away. The midpoint for 300 sq ft there is $60,100, which is 5% more than Lexington Park ($57,400). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Lexington Park?
About 67% at the midpoint, or $38,200 out of $57,400. Materials are 31% and permits 2%. Nationally, labor is 67%.
+What would 20x20 room (400 sq ft) cost in Lexington Park?
$50,400 to $102,000. Pick a different size in the estimator above to get your own number.
+Does home addition need a permit in Lexington Park?
Often, but rules are set by your city or county building office, so call before you hire. Budget $500 to $2,000 for fees in the Lexington Park area (our national range of $500 to $2,000 scaled by the local price level).
+Is Lexington Park expensive for home addition compared with the rest of Maryland?
Lexington Park is 3% below the Maryland statewide estimate ($59,200 at the midpoint). We cover 3 metros in Maryland; see the state page to compare them.
+What do carpenters earn in Lexington Park?
The BLS median is $30.23 an hour in the Lexington Park area, compared with $29.12 nationally. The 25th to 75th percentile range is $26.36 to $35.38.
+What do basic and premium home addition work cost in Lexington Park?
For 300 sq ft, basic work runs $37,900 to $53,500 and premium work $61,300 to $76,900. 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 Lexington Park?
Based on NOAA 1991-2020 normals, the comfortable months for this kind of work are March through December. November and December 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 Lexington Park
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.