| Primary address | 88 Old Post Road, Mount Sinai |
| Zip code | 11766 |
| County | Suffolk |
| Municipality | Brookhaven |
| Parcel ID | 8711000 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 08/21/2023 |
| Sale price | $484,700 |
| Arm's length | Register |
| Property tax | $12,337 |
| Building class | One Family Year-Round Residence with Accessory Apartment (215) |
| Acreage | 0.47 |
| Year built | 1972 |
| School district | Mount Sinai |
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:
88 Old Post Road, Mount Sinai, NY 11766 was built in 1972.
What is the assessed value of 88 Old Post Road, Mount Sinai, NY 11766 and the property tax paid?Assessed at $3,000, the tax amount paid for 88 Old Post Road, Mount Sinai, NY 11766 is $12,336.
When was 88 Old Post Road, Mount Sinai, NY 11766 last sold and what was the last sale price?88 Old Post Road, Mount Sinai, NY 11766 was last sold in 08/21/2023 for $484,700.
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 88 Old Post Road, Mount Sinai, 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 88 Old Post Road, Mount Sinai, NY 11766. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Property tax | $12,337 |
| Market value | $566,038 |
| Assessed value | $3,000 |
Here's the assessment & property tax history for 88 Old Post Road, Mount Sinai, 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 | $566,038 | $3,000 | 394.249 | $11,827 | +3.18% |
| 2023-2024 | $555,556 | $3,000 | 382.097 | $11,463 | +3.44% |
| 2022-2023 | $483,871 | $3,000 | 369.378 | $11,081 | +2.22% |
| 2021-2022 | $405,406 | $3,000 | 361.352 | $10,841 | +2.37% |
| 2020-2021 | $389,610 | $3,000 | 352.982 | $10,589 | +2.16% |
The complete history of permits filed for 88 Old Post Road, Mount Sinai, 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 88 Old Post Road, Mount Sinai, 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 88 Old Post Road, Mount Sinai 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) |
|---|---|---|---|---|---|
| Port Jefferson Elementary School | 5 | Public | PK, K-5 | 364 | 0.78 |
| Port Jefferson Elementary School | 5 | Public | PK, K-5 | 364 | 0.78 |
| Maryhaven Center Of Hope | NR | Private | 47 | 0.97 | |
| Mount Sinai Middle School | 5 | Public | 5-8 | 667 | 1.13 |
| Our Lady of Wisdom Regional School | NR | Private | PK-8 | 74 | 1.53 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Maryhaven Center Of Hope | NR | Private | 47 | 0.97 | |
| Mount Sinai Middle School | 5 | Public | 5-8 | 667 | 1.13 |
| Our Lady of Wisdom Regional School | NR | Private | PK-8 | 74 | 1.53 |
| Port Jefferson Middle School | 7 | Public | 6-8 | 222 | 1.62 |
| John F Kennedy Middle School | 4 | Public | 4, 6-8 | 822 | 2.21 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Mount Sinai High School | 9 | Public | 9-12 | 720 | 0.91 |
| Maryhaven Center Of Hope | NR | Private | 47 | 0.97 | |
| Earl L Vandermeulen High School | 9 | Public | 9-12 | 323 | 1.62 |
| Comsewogue High School | 6 | Public | 9-12 | 1,153 | 2.72 |
| Ward Melville Senior High School | 10 | Public | 9-12 | 1,507 | 2.83 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 88 Old Post Road, Mount Sinai.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 60 N Country Rd, Mount Sinai | 751 | ||
| 140 MT Sinai Ave, Mount Sinai | 2,471 | 10/07/2010 | |
| 555 Canal Rd, Mount Sinai | 2,001 | 03/13/2018 | $425,000 |
| 111 N Country Rd, Mount Sinai | 1,649 | 08/18/2021 | $470,000 |
| 20 Shore Rd, Mount Sinai | 1,993 | 08/17/2023 | |
| 49 N Country Rd, Mount Sinai | 3,684 | 12/02/2020 | $749,888 |
| 47 N Country Rd, Mount Sinai | 1,990 | 07/27/2015 | $469,996 |
| 17 MT Sinai Ave, Mount Sinai | 2,961 | 12/21/2018 | $475,000 |
| 31 Ashland St, Mount Sinai | 1,527 | 11/01/2021 | |
| 4 Old Post Rd, Mount Sinai | 3,731 | 06/05/2018 | $507,500 |
| 109 N Country Rd, Mount Sinai | 1,625 | 08/29/2022 | $545,000 |
| 8 Old Post Rd, Mount Sinai | 06/27/2007 | ||
| 6 Old Post Rd, Mount Sinai | 2,952 | ||
| 144 MT Sinai Ave, Mount Sinai | 2,080 | 11/23/2020 | |
| 76 Birch Hill Rd, Mount Sinai | 1,375 | 11/22/2010 | $430,000 |
| 42 Birch Hill Rd, Mount Sinai | 1,467 | 12/22/2023 | |
| 72 Birch Hill Rd, Mount Sinai | 2,290 | 10/12/2010 | |
| 258 E Shore Rd, Mount Sinai | 2,335 | 04/24/2009 | |
| 47 Birch Hill Rd, Mount Sinai | 1,260 | 04/18/2001 |