Short answer: The Nassau County Department of Health lists Oyster Bay Cove as not publicly sewered, so homes here run on cesspools, septic tanks or I/A systems. Nassau's S.E.P.T.I.C. grant for eligible nitrogen-reducing upgrades is up to $35,000 per its administrator (details below).
Oyster Bay Cove in numbers
| Town | Town of Oyster Bay |
|---|---|
| Status | Incorporated village |
| Area | 4.19 sq mi |
| Sewer (county list) | Not publicly sewered |
| Parcels / median parcel | about 988 / 2.06 ac |
| Building permits | Village of Oyster Bay Cove |
Area and parcels computed 2026-11-07 from Nassau County GIS (place boundary; all tax parcels touching it, any use). Sewer status from the Nassau County Department of Health list of sewer districts by community, which is by community, not street.
Sewer status and lots
The Nassau County Department of Health lists Oyster Bay Cove as not publicly sewered, so homes here run on cesspools, septic tanks or I/A systems. About 988 tax parcels touch Oyster Bay Cove's 4.19 square miles, with a median of 2.06 acres (about 89,500 sq ft). That is the 5th-largest median parcel of the 133 Nassau places we measured, so most lots have room for a replacement system and its setbacks to plan around. Nearby: East Norwich (not publicly sewered, median parcel 0.23 ac); Oyster Bay (Oyster Bay Sewer District, median parcel 0.18 ac); Laurel Hollow (not publicly sewered, median parcel 2.04 ac).
Grant and permits
Because the county lists Oyster Bay Cove outside public sewer, its homes fall in the area Nassau's S.E.P.T.I.C. grant was designed for, subject to the program's property test. Permits come from the Village of Oyster Bay Cove; the contractor needs a Nassau County Home Improvement License, and no county rule we found requires an I/A system for an existing home.
For Oyster Bay Cove properties, Nassau grant amount and no-stacking details are on the Nassau County overview and Long Island grants guide.
Who handles what in Oyster Bay Cove
- Building permits: Village of Oyster Bay Cove
- S.E.P.T.I.C. grants: 516-364-5861 ([email protected])
Frequently asked questions
Is Oyster Bay Cove on public sewer?
The Nassau County Department of Health lists Oyster Bay Cove as not publicly sewered, so homes here run on cesspools, septic tanks or I/A systems.
Who issues permits for septic work in Oyster Bay Cove?
The Village of Oyster Bay Cove building department, with a contractor holding a Nassau County Home Improvement License.
Rules and grant steps: Town of Oyster Bay overview, Nassau regulations, S.E.P.T.I.C. details. More nearby: East Norwich, Muttontown, Bayville, Locust Valley.
Sources
Each source was re-read on November 7, 2026. Program amounts and rules change; the agency page is the authority.
- Nassau County DOH: Public sewer districts by community
- Nassau County GIS map service (place boundaries, tax parcels)
- Nassau County Soil & Water Conservation District: S.E.P.T.I.C. program (program administrator)
- Nassau County: S.E.P.T.I.C. program
Need cesspool or septic work in Oyster Bay Cove?
Submit a request with your address. We match it to an independent operator with a Nassau County Home Improvement License who serves that address; the operator confirms the time and price with you.
Request Service →