Permits through August 2026Yearly permits since 1995Cobb County index 1975–2025
Cobb County (100 = first year)United States, rebased to the same startNBER recession
House prices are indexed by county, not by city: this is Cobb 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 Marietta, Georgia, covered 228 housing units (+103.6% year on year); the place lies in Cobb County.
164 of those units were single-family houses (72%), 0 were in two- to four-unit buildings and 64 in buildings of five or more units. That is 3.6 units per 1,000 residents, above the county's 2.7 and well below the state's 5.4.
Since 1995 the place has authorised 7,339 units, with the busiest year 2000 (643 units). Cobb County's FHFA house price index rose +126.9% over the ten years to 2025.
228units permitted, 12 months to August 2026+103.6% on the previous 12 months
164single-family units72% of the total
64units in 5+ unit buildings28% of the total
3.6units per 1,000 residentsCobb County 2.7 · Georgia 5.4
Permits by month and structure type
Housing units authorised in Marietta by month, latest 24 monthssingle-family2+ unit buildings
Units, 12 months to August 2026
Marietta
Cobb County
Georgia
United States
All housing units
228
2,106
60,994
1,418,086
Single-family (1 unit)
164 (72%)
1,001 (48%)
42,789 (70%)
888,241 (63%)
2 units
0
26
716
34,814
3–4 units
0
6
579
17,298
5 or more units
64 (28%)
1,073 (51%)
16,910 (28%)
477,733 (34%)
Units per 1,000 residents
3.6
2.7
5.4
4.1
Change on previous 12 months
+103.6%
+51.7%
+1.1%
−0.1%
Permits by year since 1995
Housing units authorised in Marietta by year, 1995–2025single-family2+ unit buildings
7,339 units since 1995; the busiest year was 2000. Annual figures include units imputed for months a place did not report.
Home prices in Cobb County
FHFA's index for Cobb County rose +126.9% over the ten years to 2025 (+8.5% a year) and +2.1% in the latest year, against +110.1% and +2.2% for Georgia. 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 Marietta, GA?
228 housing units were authorised by building permits in the 12 months to August 2026, against 112 in the previous 12 months.
What kind of housing is being permitted in Marietta?
164 single-family units, 0 in two-unit buildings, 0 in three- and four-unit buildings and 64 in buildings of five or more units.
How does Marietta compare with its county and state?
3.6 units per 1,000 residents in Marietta, 2.7 in Cobb County and 5.4 in Georgia.
How have home prices moved in Cobb County?
FHFA's index for Cobb County rose +126.9% over the ten years to 2025 and +2.1% 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 430000); 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.