Cost to Build a House in Harrison County, Mississippi
Building a house in Harrison County, Mississippi costs about $153/sq ft in 2026 — roughly $269,280–$342,720 for a 2,000 sq ft mid-range home (construction only, land excluded). 1,909 single-family homes were permitted here in 2025, and the typical existing home is worth $228,543. Population: 210,000.
That applies a local adjustment of +5% to the Mississippi average of $146/sq ft.
How much building happens in Harrison County
Single-family homes permitted each year, 2000–2025. 2025 is highlighted; the 2008–2011 crash years are darker.
Harrison County has recovered most of its pre-crash building volume. Builders are active here and it should be possible to get several competing bids.
U.S. Census Bureau Building Permits Survey, county annual files 2000–2025 (1-unit structures, total including imputation).
Build or buy in Harrison County?
Building a median-size new home in Harrison County costs about $165,552 more than buying the typical existing one. That gap is narrower than the Mississippi average of +91.8%, because existing homes here are pricier than in much of the state — which makes Harrison County one of the stronger cases for building in Mississippi.
The two sides are not the same product: the build is brand new at the median new-home size for the South, the existing home is typically older and smaller. Lot cost uses Mississippi's average land share, and local lot prices can be well above or below it. Full Mississippi build-vs-buy comparison
Existing home value: Zillow Home Value Index, single-family, middle tier (2026-08) — an index of typical value, not a median sale price. Land: FHFA Working Paper 19-01.
What builders declared on Harrison County permits (2025)
The average declared valuation was $126,732 per home, against our $306,000 estimate for a 2,000 sq ft mid-range build. The two measure different things: builders declare a valuation for permit-fee purposes, which routinely understates finished cost, and permits cover homes of every size and finish level. We show both because quoting only the flattering one would be dishonest.
Source: U.S. Census Bureau Building Permits Survey, 2025 annual data.
Local Market Factors
- ›Gulf Coast/Biloxi
- ›Hurricane construction codes add cost
What building in Harrison County actually involves
Cost per square foot is one number. These are the conditions behind it.
How busy this market is
Harrison County ranks 1st of 78 counties in Mississippi for single-family permits issued in 2025, accounting for 26.1% of all the single-family homes permitted statewide that year.
That puts it among the busiest building markets in the state — deep contractor supply, but also the most competition for their time.
U.S. Census Bureau Building Permits Survey, co2025a.txt (2025).
What land adds on top
Land averages 15.9% of finished property value in Mississippi, which is a markup of about 19% on construction cost. For the $306,000 build above, that implies roughly $58,140 for the lot.
This is a statewide figure. Lots inside Harrison County's built-up areas will run above it and rural parcels below, so treat it as an order of magnitude rather than a budget line.
FHFA Working Paper 19-01 land values.
What the trades cost
Median hourly wage, Mississippi. BLS Occupational Employment and Wage Statistics, May 2025.
Climate, spec and timing
- 2,106 heating and 2,399 cooling degree days a year in Mississippi — cooling drives the mechanical budget. (NOAA, 2016-2025 average)
- The median new home in the South is 2,162 sq ft and the Census median contract price there is $157.3/sq ft, excluding land — the same basis as our estimate above. (Census Survey of Construction 2025)
- Statewide, permit filings peak in March and bottom out in December. Contractors have the most capacity in the quiet months.
- Mississippi issued 7,318 single-family permits in 2025 overall. See the 35-year state history.
Cost by Home Size in Harrison County
| Home Size | Basic | Mid-Range | Premium |
|---|---|---|---|
| 500 sq ft | $56,561 | $76,500 | $104,170 |
| 1,000 sq ft | $113,122 | $153,000 | $208,340 |
| 1,500 sq ft | $169,684 | $229,500 | $312,511 |
| 2,000 sq ft | $226,245 | $306,000 | $416,681 |
| 2,500 sq ft | $282,806 | $382,500 | $520,851 |
| 3,000 sq ft | $339,367 | $459,000 | $625,021 |
| 4,000 sq ft | $452,489 | $612,000 | $833,362 |
| 5,000 sq ft | $565,612 | $765,000 | $1,041,702 |
Other Mississippi counties
Costs are estimates only and represent construction costs, excluding land, architect fees, permits, and landscaping. Land in Mississippi averages 15.9% of finished property value (FHFA), which adds roughly 19% on top of these construction figures.
County multiplier of 1.05× applied to the Mississippi state average (which itself is 0.78× the national average of $188/sq ft).
Cost data: HouseBuildCalc Permit Cost Index (876,000+ building permits, 1,700+ ZIP codes), U.S. Census Bureau Survey of Construction, BLS Producer Price Index, NAHB Cost of Constructing a Home (published summaries). County-level multipliers are estimates derived from regional market data. County permits: U.S. Census Bureau Building Permits Survey. Home values: Zillow Home Value Index. For planning purposes only.