| Primary address | 239 Prospect Avenue, Sea Cliff |
| Zip code | 11579 |
| County | Nassau |
| Town/City | Oyster Bay |
| Village (swiss code) | Sea Cliff |
| Parcel ID | 21-162-11 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Tax class | Register |
| Current property tax | $14,726 |
| Building sqft | 2,378 |
| Building class | One Family Year - Round Residence (210.01) |
| Land | Primary site |
| Topography | Level |
| Acreage | 0.401 |
| Buildings on lot | 1 |
| Year built | 1890 |
| Stories | 2 |
| Style | Colonial |
| Rooms | 10 |
| Bathrooms | 1 |
| Attic | Partial |
| Basement | Full |
| Exterior wall | Frame |
| Heating type | Central |
| Heating system | Steam and vapor |
| Fireplace | 1 |
| Zoning district | Register (See more on map) |
| School district | Sea Cliff |
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).
Create a free account to access valuable data points such as:
239 Prospect Avenue, Sea Cliff, NY 11579 was built in 1890 and has a total of 2,378 square feet.
What is the assessed value of 239 Prospect Avenue, Sea Cliff, NY 11579 and the property tax paid?Assessed at $731, the tax amount paid for 239 Prospect Avenue, Sea Cliff, NY 11579 is $15,555.
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 239 Prospect Avenue, Sea Cliff, including title documents, transfer conditions, mortgages and liens.
Access detailed property tax data for 239 Prospect Avenue, Sea Cliff, NY 11579. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2026 |
| Base tax | $15,556 |
| Current property tax | $14,727 |
| Tax class | Register |
| Market value | $731,000 |
| Assessed value | $731 |
Here's the assessment & property tax history for 239 Prospect Avenue, Sea Cliff, including the evolution of the total tax rate and corresponding property tax.
| Year | Market value | Assessment value | Total tax rate | Property tax | Year over year change |
|---|---|---|---|---|---|
| 2026 | $731,000 | $731 | 2128.035 | $15,556 | +0.61% |
| 2025 | $747,000 | $747 | 2069.896 | $15,462 | -12.97% |
| 2024 | $836,836 | $800 | 2220.743 | $17,766 | -5.29% |
| 2023 | $808,000 | $808 | 2321.685 | $18,759 | -9.03% |
| 2022 | $837,000 | $837 | 2463.641 | $20,621 | -8.12% |
The complete history of permits filed for 239 Prospect Avenue, Sea Cliff, 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.
Create a free account to unlock extended information for 239 Prospect Avenue, Sea Cliff, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).
| FEMA flood zone(s) | X (See more on map) |
Access the detailed traffic volume map for 239 Prospect Avenue, Sea Cliff to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.
| View daily traffic map |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Sea Cliff Elementary School | 8 | Public | K-5 | 343 | 0.53 |
| North Shore Middle School | 9 | Public | K-8 | 646 | 1.09 |
| North Shore Senior High School | 9 | Public | K-5, 9-12 | 764 | 1.12 |
| Tiegerman Elementary School | NR | Private | 1-5 | 136 | 1.20 |
| Landing School | 4 | Public | PK, 3-5 | 349 | 1.31 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| North Shore Middle School | 9 | Public | K-8 | 646 | 1.09 |
| St. Peter of Alcantara School | NR | Private | PK-8 | 162 | 1.88 |
| All Saints Regional Catholic School | NR | Private | PK-8 | 166 | 1.90 |
| Robert M Finley Middle School | 5 | Public | 6-8 | 710 | 2.15 |
| Carrie Palmer Weber Middle School | 7 | Public | 6-8 | 1,216 | 2.24 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| North Shore Senior High School | 9 | Public | K-5, 9-12 | 764 | 1.12 |
| Paul D Schreiber Senior High School | 9 | Public | 9-12 | 1,613 | 1.81 |
| North Shore Day School | NR | Private | 0 | 2.31 | |
| Vincent Smith School | NR | Private | 2-12 | 46 | 2.61 |
| Glen Cove High School | 5 | Public | 9-12 | 1,050 | 2.73 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 239 Prospect Avenue, Sea Cliff.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 368 Glen Ave, Sea Cliff | 1,521 | 06/26/2024 | $999,000 |
| 18 20th Ave, Sea Cliff | 2,022 | 05/09/2019 | $998,000 |
| 12 20th Ave, Sea Cliff | 1,260 | 07/24/2003 | $460,000 |
| 51 Park Pl, Sea Cliff | 1,806 | 08/01/2025 | $845,000 |
| 45 19th Ave, Sea Cliff | 900 | 02/20/2025 | $749,000 |
| 4 20th Ave, Sea Cliff | 1,150 | 10/22/2004 | $402,500 |
| 302 Glen Ave, Sea Cliff | 1,272 | ||
| 272 Glen Ave, Sea Cliff | 2,096 | 11/14/1997 | $240,000 |
| 31 20th Ave, Sea Cliff | 1,404 | 05/23/1994 | $250,000 |
| 84 Park Pl, Sea Cliff | 1,702 | ||
| 378 Glen Ave, Sea Cliff | 1,528 | 01/25/2023 | $700,000 |
| 41 Park Pl, Sea Cliff | 2,260 | 10/23/2024 | $1,325,000 |
| 35 20th Ave, Sea Cliff | 1,822 | 04/29/2021 | $500,000 |
| 227 Prospect Ave, Sea Cliff | 2,124 | 05/09/2025 | |
| 72 Park Pl, Sea Cliff | 1,776 | 04/20/2015 | |
| 46 20th Ave, Sea Cliff | 1,086 | 06/25/2020 | $650,000 |
| 19 19th Ave, Sea Cliff | 1,132 | 10/24/2006 | $559,000 |
| 78 Park Pl, Sea Cliff | 1,702 | 07/01/2013 | $795,000 |
| 233 Prospect Ave, Sea Cliff | 2,854 | 06/29/2021 | $865,000 |
| 11 19th Ave, Sea Cliff | 990 |