| Primary address | 18 Washington Avenue, Mastic |
| Zip code | 11950 |
| County | Suffolk |
| Municipality | Brookhaven |
| Parcel ID | 4518111 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Current property tax | $7,211 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.28 |
| School district | William Floyd |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
Property reports include comprehensive occupancy, improvement and development information (where available).
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Assessed at $2,140, the tax amount paid for 18 Washington Avenue, Mastic, NY 11950 is $7,916.
View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.
Create a free account to view the complete sales history for 18 Washington Avenue, Mastic, including title documents, transfer conditions, mortgages and liens.
Access detailed property tax data for 18 Washington Avenue, Mastic, NY 11950. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Base tax | $7,916 |
| Current property tax | $7,211 |
| Market value | $403,774 |
| Assessed value | $2,140 |
The complete history of permits filed for 18 Washington Avenue, Mastic, including new construction or demolition permits, plus any work pertaining to plumbing, heating and sprinkler systems is available with a free account. Available data goes back to 1990.
Access a detailed real estate market overview of Brookhaven so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Brookhaven and compare it to other neighborhoods in Suffolk County.
Access the detailed traffic volume map for 18 Washington Avenue, Mastic to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.
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