| Primary address | 18 Bay Avenue, Sag Harbor |
| Zip code | 11963 |
| County | Suffolk |
| Municipality | Southampton |
| Parcel ID | 5-3-41 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Current property tax | $3,294 |
| Building sqft | 1,888 |
| Building class | Two Family Year-Round Residence (220) |
| Acreage | 0.23 |
| Year built | 1994 |
| Stories | 1 |
| Units | 2 |
| Bedrooms | 4 |
| Bathrooms | 2 |
| Zoning district | Register |
| School district | Sag Harbor |
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:
18 Bay Avenue, Sag Harbor, NY 11963 was built in 1994 and has a total of 1,888 square feet.
What is the assessed value of 18 Bay Avenue, Sag Harbor, NY 11963 and the property tax paid?Assessed at $636,200, the tax amount paid for 18 Bay Avenue, Sag Harbor, NY 11963 is $4,347.
When was 18 Bay Avenue, Sag Harbor, NY 11963 last sold?18 Bay Avenue, Sag Harbor, NY 11963 was last sold in 03/04/2023.
How many residential units does this building have?This building has 2 residential unit(s).
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 Bay Avenue, Sag Harbor, including title documents, transfer conditions, mortgages and liens.
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 18 Bay Avenue, Sag Harbor, NY 11963. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Base tax | $4,347 |
| Current property tax | $3,294 |
| Market value | $1,009,842 |
| Assessed value | $636,200 |
Here's the assessment & property tax history for 18 Bay Avenue, Sag Harbor, 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 | $1,009,842 | $636,200 | 6.6773 | $4,248 | +2.61% |
| 2023-2024 | $915,396 | $636,200 | 6.5077 | $4,140 | +0.21% |
| 2022-2023 | $805,316 | $636,200 | 6.4942 | $4,132 | +0.71% |
| 2021-2022 | $636,200 | $636,200 | 6.4485 | $4,103 | +2.58% |
| 2020-2021 | $636,200 | $636,200 | 6.2861 | $3,999 | +0.17% |
The complete history of permits filed for 18 Bay Avenue, Sag Harbor, 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 Southampton so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Southampton and compare it to other neighborhoods in Suffolk County.
Create a free account to unlock extended information for 18 Bay Avenue, Sag Harbor, 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) | 0.2, X (See more on map) |
Access the detailed traffic volume map for 18 Bay Avenue, Sag Harbor 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) |
|---|---|---|---|---|---|
| Sag Harbor Elementary School | 5 | Public | PK, K-5 | 426 | 2.60 |
| Sag Harbor Elementary School | 5 | Public | PK, K-5 | 426 | 2.60 |
| The Hayground School | NR | Private | PK-8 | 77 | 3.99 |
| The Hayground School | NR | Private | PK-8 | 77 | 3.99 |
| Bridgehampton School | 7 | Public | PK, K-12 | 198 | 4.68 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Pierson Middle High School | 5 | Public | 6-12 | 525 | 2.62 |
| The Hayground School | NR | Private | PK-8 | 77 | 3.99 |
| Bridgehampton School | 7 | Public | PK, K-12 | 198 | 4.68 |
| Shelter Island School | 5 | Public | PK, K-12 | 174 | 4.87 |
| Ross School | NR | Private | PK-12 | 312 | 5.43 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Pierson Middle High School | 5 | Public | 6-12 | 525 | 2.62 |
| Bridgehampton School | 7 | Public | PK, K-12 | 198 | 4.68 |
| Shelter Island School | 5 | Public | PK, K-12 | 174 | 4.87 |
| Ross School | NR | Private | PK-12 | 312 | 5.43 |
| Ross School | NR | Private | PK-12 | 318 | 5.43 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 18 Bay Avenue, Sag Harbor.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 135 Noyack Ave, Sag Harbor | 900 | 01/02/2023 | |
| 40 Birch St, Sag Harbor | 02/10/2010 | ||
| 28 Bay Ave, Sag Harbor | 528 | 09/23/2024 | |
| 19 Cedar Ln, Sag Harbor | 1,704 | 12/15/2007 | |
| 38 Birch St, Sag Harbor | 768 | 06/01/2021 | $805,000 |
| 20 Bay Ave, Sag Harbor | 1,107 | 03/25/2016 | $717,495 |
| 28 Walnut St, Sag Harbor | 640 | 12/28/2016 | $435,000 |
| 32 Walnut St, Sag Harbor | 812 | 09/15/2012 | |
| 18 Walnut St, Sag Harbor | 1,084 | 12/06/2024 | |
| 106 Noyack Ave, Sag Harbor | 1,305 | 01/11/2024 | |
| 22 Walnut St, Sag Harbor | 960 | 09/27/2002 | |
| 36 Walnut St, Sag Harbor | 1,056 | 07/19/2024 | $10 |
| 116 Noyack Ave, Sag Harbor | 1,168 | 12/01/2023 | |
| 26 Walnut St, Sag Harbor | 1,060 | 02/06/2002 | |
| 22 Bay Ave, Sag Harbor | 784 | 03/19/2010 | $400,000 |
| 14 Bay Ave, Sag Harbor | 1,760 | ||
| 30 Walnut St, Sag Harbor | 1,732 | 10/02/1999 | $87,500 |
| 134 Noyack Ave, Sag Harbor | 936 | 06/15/2016 | |
| 24 Walnut St, Sag Harbor | 1,090 | 10/27/1999 | $125,000 |
| 24 Bay Ave, Sag Harbor | 1,498 |