| Primary address | 643 Sayville Avenue, Sayville |
| Zip code | 11782 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 257-2-12 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 08/11/2016 |
| Sale price | $330,000 |
| Arm's length | Register |
| Property tax | $11,930 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.17 |
| Zoning district | Register |
| School district | Connetquot |
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:
Assessed at $41,300, the tax amount paid for 643 Sayville Avenue, Sayville, NY 11782 is $11,929.
When was 643 Sayville Avenue, Sayville, NY 11782 last sold and what was the last sale price?643 Sayville Avenue, Sayville, NY 11782 was last sold in 08/11/2016 for $330,000.
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 643 Sayville Avenue, Sayville, including title documents, transfer conditions, mortgages and liens.
*Here are the three most recent sales for this property.
To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.
R: Recorded date
D: Document date
Access detailed property tax data for 643 Sayville Avenue, Sayville, NY 11782. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Property tax | $11,930 |
| Market value | $581,690 |
| Assessed value | $41,300 |
Here's the assessment & property tax history for 643 Sayville Avenue, Sayville, 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 |
|---|---|---|---|---|---|
| 2024-2025 | $581,690 | $41,300 | 27.581 | $11,391 | +4.79% |
| 2023-2024 | $567,307 | $41,300 | 26.321 | $10,871 | +1.30% |
| 2022-2023 | $498,792 | $41,300 | 25.984 | $10,731 | +0.86% |
| 2021-2022 | $445,043 | $41,300 | 25.763 | $10,640 | +2.14% |
| 2020-2021 | $425,773 | $41,300 | 25.224 | $10,418 | +8.07% |
The complete history of permits filed for 643 Sayville Avenue, Sayville, 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 643 Sayville Avenue, Sayville, 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 643 Sayville Avenue, Sayville 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) |
|---|---|---|---|---|---|
| Edward J Bosti Elementary School | 7 | Public | PK, K-5 | 283 | 0.78 |
| Edward J Bosti Elementary School | 7 | Public | PK, K-5 | 283 | 0.78 |
| John Pearl Elementary School | 6 | Public | K-5 | 189 | 0.86 |
| Lincoln Avenue Elementary School | 8 | Public | PK, K-5 | 453 | 0.90 |
| Lincoln Avenue Elementary School | 8 | Public | PK, K-5 | 453 | 0.90 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Sayville Middle School | 7 | Public | 6-8 | 619 | 0.57 |
| Oakdale Bohemia Middle School | 6 | Public | 6-8 | 634 | 1.80 |
| Prince Of Peace Regional School | NR | Private | PK, K-8 | 194 | 1.86 |
| Connetquot Alternative Preschool At Premm | NR | Public | 0 | 1.90 | |
| West Sayville Christian School | NR | Private | K-9 | 37 | 1.99 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Sayville High School | 9 | Public | 9-12 | 880 | 1.70 |
| Connetquot Alternative Preschool At Premm | NR | Public | 0 | 1.90 | |
| Bayport Blue Point High School | 9 | Public | 9-12 | 664 | 2.53 |
| Connetquot High School | 8 | Public | 9-12 | 1,757 | 2.63 |
| East Islip High School | 8 | Public | 9-12 | 1,145 | 4.39 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 643 Sayville Avenue, Sayville.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 244 Tree Ave, Central Islip | 12/05/2005 | ||
| 1493 St Louis Ave, Bay Shore | 09/20/2005 | ||
| 38 Carrol St, Brentwood | 06/11/2013 | $255,000 | |
| 107 Center Bay Dr, West Islip | 04/22/2003 | ||
| 939 Pine Ave, West Islip | 04/25/2003 | $390,000 | |
| 556 Alwick Ave, West Islip | 01/31/2003 | $327,800 | |
| 11 Yalta Dr, Central Islip | 04/21/2003 | ||
| 188 Country Village Ln, East Islip | 04/30/2003 | $400,000 | |
| 1406 N Windsor Ave, Bay Shore | 1,785 | 08/04/2021 | $420,000 |
| 301 Aster Rd, West Islip | 03/31/2025 | $1 | |
| 4 Creekside CT, Islip | 08/17/2009 | $499,000 | |
| 61 New Hampshire Ave, Bay Shore | 03/08/2025 | ||
| 718 Union Blvd, West Islip | 11/01/2022 | ||
| 7 Woodland St, East Islip | 08/25/2006 | ||
| 1114 Reilly St, Bay Shore | 1,756 | 03/30/2022 | |
| 39 Starlight Dr, East Islip | 02/07/2013 | $146,000 | |
| 41 Rudder Dr, Holtsville | 03/21/2003 | ||
| 1121 Patricia Ave, West Islip | 1,495 | 02/07/2020 | $427,000 |
| 44 Claremont Ave, Bay Shore | 12/02/2024 | ||
| 157 Sayville Blvd, Sayville | 06/29/2010 |