Permits through August 2026Yearly permits since 1995King William County index 1991–2025
King William County (100 = first year)United States, rebased to the same startNBER recession
House prices are indexed by county, not by city: this is King William County's FHFA index, with the national index rebased to the same start.
Census Bureau notes: building permit figures cover new privately owned housing units authorised by permit-issuing places; permits do not mean the units were started or completed, and places that report less often than monthly are imputed in monthly totals. FHFA notes: The FHFA HPI is a broad measure of the movement of single-family house prices. The FHFA HPI is a weighted, repeat-sales index, meaning that it measures average price changes in repeat sales or refinancings on the same properties.
In the 12 months to August 2026, building permits in King William County Unincorporated Area, Virginia, covered 131 housing units (−5.8% year on year); the place lies in King William County.
131 of those units were single-family houses (100%), 0 were in two- to four-unit buildings and 0 in buildings of five or more units.
Since 1995 the place has authorised 3,902 units, with the busiest year 2004 (236 units). King William County's FHFA house price index rose +84.2% over the ten years to 2025.
131units permitted, 12 months to August 2026−5.8% on the previous 12 months
131single-family units100% of the total
0units in 5+ unit buildings0% of the total
—units per 1,000 residentsKing William County 8.2 · Virginia 4.2
Permits by month and structure type
Housing units authorised in King William County Unincorporated Area by month, latest 24 monthssingle-family2+ unit buildings
Units, 12 months to August 2026
King William County Unincorporated Area
King William County
Virginia
United States
All housing units
131
161
37,520
1,418,086
Single-family (1 unit)
131 (100%)
161 (100%)
20,665 (55%)
888,241 (63%)
2 units
0
0
448
34,814
3–4 units
0
0
130
17,298
5 or more units
0 (0%)
0 (0%)
16,277 (43%)
477,733 (34%)
Units per 1,000 residents
—
8.2
4.2
4.1
Change on previous 12 months
−5.8%
+1.3%
+12.1%
−0.1%
Permits by year since 1995
Housing units authorised in King William County Unincorporated Area by year, 1995–2025single-family2+ unit buildings
3,902 units since 1995; the busiest year was 2004. Annual figures include units imputed for months a place did not report.
Home prices in King William County
FHFA's index for King William County rose +84.2% over the ten years to 2025 (+6.3% a year) and +5.5% in the latest year, against +74.6% and +3.7% for Virginia. Full county page: decade table, peak-to-low declines, every ZIP code and every permit-issuing place in the county.
Questions and answers
How many homes are being built in King William County Unincorporated Area, VA?
131 housing units were authorised by building permits in the 12 months to August 2026, against 139 in the previous 12 months.
What kind of housing is being permitted in King William County Unincorporated Area?
131 single-family units, 0 in two-unit buildings, 0 in three- and four-unit buildings and 0 in buildings of five or more units.
How does King William County Unincorporated Area compare with its county and state?
No population estimate is attached to this permit-issuing area, so a per-resident rate is not shown; King William County runs at 8.2 units per 1,000 residents and Virginia at 4.2.
How have home prices moved in King William County?
FHFA's index for King William County rose +84.2% over the ten years to 2025 and +5.5% in the latest year; the county page has the full series.
What does a permit count?
A housing unit authorised by a building permit for new privately owned residential construction, as reported to the Census Bureau Building Permits Survey by the permit-issuing office. Permits are not completions; some permitted units are never built, and places that report only annually are imputed in monthly figures.
Provenance
Permits: US Census Bureau, Building Permits Survey, place-level monthly and annual files through August 2026 (permit office 387000); county and state comparisons from the county and state files. Population: Census Bureau vintage 2025 estimates for incorporated places, matched on FIPS place code where the permit office is one. House price index: Federal Housing Finance Agency. Public domain. Corrections · Building Permits Survey.