County or equivalent · 09180
Southeastern Connecticut Plann, Connecticut
Annual housing permits and reporting coverage
- Published estimate · 2025
- 440
- Reported only · 2025
- 426
- Added by estimation · 2025
- 14
Reported and estimated units by year
| Year and source | Published estimate | Reported only | Added by estimation |
|---|---|---|---|
| 2023 Census file | 335 | 286 | 49 |
| 2024 Census file | 509 | 464 | 45 |
| 2025 Census file | 440 | 426 | 14 |
2024 to 2025 · published estimate -69 units · reported only -38 · added by estimation -31. This split describes the difference between the published columns.
What types of housing were authorized?
| Units in building | Published estimate | Reported only | Added by estimation |
|---|---|---|---|
| One unit | 285 | 273 | 12 |
| Two units | 16 | 14 | 2 |
| Three or four units | 27 | 27 | 0 |
| Five or more units | 112 | 112 | 0 |
Local housing and rent context
| Measure | Estimate and margin |
|---|---|
| Housing units · Census table B25001 | 126,425 ± 110 |
| Median gross monthly rent · Census table B25064 | $1,365 ± $26 |
| Gross rent at least 30% of income · Census table B25070 | 51% ± 2.1 percentage points |
| Gross rent at least 50% of income | 23.9% ± 1.6 percentage points |
| Estimated households with a computed rent-to-income ratio | 38,014 |
The 2025 permit estimate amounts to 3.5 authorized units per 1,000 housing units in the ACS estimate. The numerator and denominator cover different periods.
Permit offices listed under this county code
Use the office pages for their own histories and source coverage notes.
- Bozrah townPermit office 09053000 · Southeastern Connecticut Plann · 1 authorized units
- Colchester townPermit office 09121000 · Southeastern Connecticut Plann · 42 authorized units
- East Lyme townPermit office 09193000 · Southeastern Connecticut Plann · 44 authorized units
- Franklin townPermit office 09233000 · Southeastern Connecticut Plann · 1 authorized units
- Griswold townPermit office 09253000 · Southeastern Connecticut Plann · 7 authorized units
- GrotonPermit office 09257000 · Southeastern Connecticut Plann · 2 authorized units
- Groton Long Point boroughPermit office 09261000 · Southeastern Connecticut Plann · 1 authorized units
- Groton townPermit office 09265000 · Southeastern Connecticut Plann · 20 authorized units
- Lebanon townPermit office 09317000 · Southeastern Connecticut Plann · 45 authorized units
- Ledyard townPermit office 09321000 · Southeastern Connecticut Plann · 14 authorized units
- Lisbon townPermit office 09325000 · Southeastern Connecticut Plann · 4 authorized units
- Montville townPermit office 09385000 · Southeastern Connecticut Plann · 12 authorized units
- New LondonPermit office 09417000 · Southeastern Connecticut Plann · 8 authorized units
- North Stonington townPermit office 09453000 · Southeastern Connecticut Plann · 30 authorized units
- NorwichPermit office 09461000 · Southeastern Connecticut Plann · 79 authorized units
- Preston townPermit office 09505000 · Southeastern Connecticut Plann · 14 authorized units
- Salem townPermit office 09533000 · Southeastern Connecticut Plann · 9 authorized units
- Sprague townPermit office 09581000 · Southeastern Connecticut Plann · 3 authorized units
- Stonington townPermit office 09605000 · Southeastern Connecticut Plann · 39 authorized units
- Waterford townPermit office 09669000 · Southeastern Connecticut Plann · 55 authorized units
- Windham townPermit office 09713000 · Southeastern Connecticut Plann · 10 authorized units
Sources and definitions
How to read these figures
- The Census Building Permits Survey counts new privately owned housing units authorized by permits. One permit can cover multiple units. The counts describe authorizations, a stage before starts and completions.
- The published estimate includes reported units and Census estimates that fill gaps. The difference is calculated from those two columns. Reported-only units can include records from approved alternative sources. A missing report can leave an office without a usable count.
- County and state totals come from their own Census files. Permit offices can cover places across county lines or areas served by another jurisdiction. The office’s county field is used for navigation.
- ACS housing inventory and rents are survey estimates for 2020–2024. Gross rent includes rent and separately paid utilities or fuels. Rent burden is the share paying at least 30% of income among cash-rent households with a computed ratio. Margins are at 90% confidence. The margin for rent burden is approximate.
- Vintage 2025 county housing stock is a separate Census series. Its model uses building-permit data alongside other inputs. Read stock change and permits as separate measures.
Public sources retrieved November 10, 2026. Building Permits Survey annual data · Survey methodology · American Community Survey data · Download the comparison