Permits through August 2026Yearly permits since 1995St. Mary Parish index 1986–2025
St. Mary Parish (100 = first year)United States, rebased to the same startNBER recessionPeak before the latest year value
House prices are indexed by county, not by city: this is St. Mary Parish'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.
St. Mary Parish Unincorporated Area, Louisiana (St. Mary Parish), authorised 21 housing units through building permits in the 12 months to August 2026, −4.5% on the previous 12 months.
21 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 1,032 units, with the busiest year 1995 (66 units). St. Mary Parish's FHFA house price index rose +14.1% over the ten years to 2025.
21units permitted, 12 months to August 2026−4.5% on the previous 12 months
21single-family units100% of the total
0units in 5+ unit buildings0% of the total
—units per 1,000 residentsSt. Mary Parish 1.2 · Louisiana 3.0
Permits by month and structure type
Housing units authorised in St. Mary Parish Unincorporated Area by month, latest 24 monthssingle-family2+ unit buildings
Units, 12 months to August 2026
St. Mary Parish Unincorporated Area
St. Mary Parish
Louisiana
United States
All housing units
21
55
14,034
1,418,086
Single-family (1 unit)
21 (100%)
35 (64%)
11,806 (84%)
888,241 (63%)
2 units
0
0
476
34,814
3–4 units
0
0
31
17,298
5 or more units
0 (0%)
20 (36%)
1,721 (12%)
477,733 (34%)
Units per 1,000 residents
—
1.2
3.0
4.1
Change on previous 12 months
−4.5%
+3.8%
−1.1%
−0.1%
Permits by year since 1995
Housing units authorised in St. Mary Parish Unincorporated Area by year, 1995–2025single-family2+ unit buildings
1,032 units since 1995; the busiest year was 1995. Annual figures include units imputed for months a place did not report.
Home prices in St. Mary Parish
FHFA's index for St. Mary Parish rose +14.1% over the ten years to 2025 (+1.3% a year) and −4.1% in the latest year, against +37.9% and +1.8% for Louisiana. 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 St. Mary Parish Unincorporated Area, LA?
21 housing units were authorised by building permits in the 12 months to August 2026, against 22 in the previous 12 months.
What kind of housing is being permitted in St. Mary Parish Unincorporated Area?
21 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 St. Mary Parish 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; St. Mary Parish runs at 1.2 units per 1,000 residents and Louisiana at 3.0.
How have home prices moved in St. Mary Parish?
FHFA's index for St. Mary Parish rose +14.1% over the ten years to 2025 and −4.1% 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 649000); 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.