| Primary address | 9 Mt Sinai Avenue, Mount Sinai |
| Zip code | 11766 |
| County | Suffolk |
| Municipality | Brookhaven |
| Parcel ID | 8708590 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 01/31/2003 |
| Sale price | $278,000 |
| Arm's length | Register |
| Current property tax | $11,851 |
| Building sqft | 1,386 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 1 |
| Year built | 1955 |
| Rooms | 6 |
| Bedrooms | 3 |
| Bathrooms | 1 |
| Zoning district | Register |
| 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:
9 Mt Sinai Avenue, Mount Sinai, NY 11766 was built in 1955 and has a total of 1,386 square feet.
What is the assessed value of 9 Mt Sinai Avenue, Mount Sinai, NY 11766 and the property tax paid?Assessed at $3,100, the tax amount paid for 9 Mt Sinai Avenue, Mount Sinai, NY 11766 is $12,747.
When was 9 Mt Sinai Avenue, Mount Sinai, NY 11766 last sold and what was the last sale price?9 Mt Sinai Avenue, Mount Sinai, NY 11766 was last sold in 01/31/2003 for $278,000.
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 9 Mt Sinai Avenue, 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 9 Mt Sinai Avenue, Mount Sinai, NY 11766. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Base tax | $12,748 |
| Current property tax | $11,851 |
| Market value | $584,906 |
| Assessed value | $3,100 |
Here's the assessment & property tax history for 9 Mt Sinai Avenue, 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 | $584,906 | $3,100 | 394.249 | $12,222 | +3.18% |
| 2023-2024 | $574,074 | $3,100 | 382.097 | $11,845 | +3.44% |
| 2022-2023 | $500,000 | $3,100 | 369.378 | $11,451 | +2.22% |
| 2021-2022 | $418,919 | $3,100 | 361.352 | $11,202 | +2.37% |
| 2020-2021 | $402,597 | $3,100 | 352.982 | $10,942 | +2.16% |
The complete history of permits filed for 9 Mt Sinai Avenue, 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 9 Mt Sinai Avenue, 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 9 Mt Sinai Avenue, 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) |
|---|---|---|---|---|---|
| Mount Sinai Middle School | 5 | Public | 5-8 | 667 | 0.46 |
| Mount Sinai Elementary School | 7 | Public | K-4 | 659 | 1.70 |
| Sound Beach School | 4 | Public | 3-5 | 473 | 1.97 |
| John F Kennedy Middle School | 4 | Public | 4, 6-8 | 822 | 2.17 |
| Port Jefferson Elementary School | 5 | Public | PK, K-5 | 364 | 2.21 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Mount Sinai Middle School | 5 | Public | 5-8 | 667 | 0.46 |
| North Country Road School | 5 | Public | 6-8 | 534 | 1.98 |
| John F Kennedy Middle School | 4 | Public | 4, 6-8 | 822 | 2.17 |
| Maryhaven Center Of Hope | NR | Private | 47 | 2.36 | |
| Port Jefferson Middle School | 7 | Public | 6-8 | 222 | 2.89 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Mount Sinai High School | 9 | Public | 9-12 | 720 | 0.69 |
| Miller Place High School | 9 | Public | 9-12 | 820 | 1.36 |
| Comsewogue High School | 6 | Public | 9-12 | 1,153 | 2.12 |
| Maryhaven Center Of Hope | NR | Private | 47 | 2.36 | |
| Earl L Vandermeulen High School | 9 | Public | 9-12 | 323 | 2.89 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 9 Mt Sinai Avenue, Mount Sinai.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 4 George Hill Rd, Mount Sinai | 2,035 | 04/22/2016 | |
| 767 Route 25a, Mount Sinai | 06/06/2017 | $1,100,000 | |
| 180 MT Sinai Ave, Mount Sinai | 2,064 | 01/03/2023 | $455,000 |
| 177 MT Sinai Ave, Mount Sinai | 2,023 | 09/10/2015 | |
| 136 Shore Rd, Mount Sinai | 2,134 | 08/12/2009 | |
| 594 Route 25a, Mount Sinai | 6,689 | ||
| 78 Birch Hill Rd, Mount Sinai | 2,436 | 12/29/2025 | $800,000 |
| 99 N Country Rd, Mount Sinai | 2,584 | 02/21/2019 | |
| 111 W Shore Rd, Mount Sinai | 09/22/2012 | ||
| 543 MT Sinai Coram Rd, Mount Sinai | |||
| 182 Shore Rd, Mount Sinai | 11/17/2015 | $18,500 | |
| 5 Cherry Ln, Mount Sinai | 2,278 | 01/16/2020 | |
| 148 MT Sinai Ave, Mount Sinai | 2,290 | 06/05/2012 | |
| 21 MT Sinai Ave, Mount Sinai | 872 | 09/23/1994 | |
| 541 MT Sinai Coram Rd, Mount Sinai | |||
| 26 MT Sinai Ave, Mount Sinai | 1,044 | 12/27/2024 | $10 |
| 191 N Country Rd, Mount Sinai | 2,340 | 11/09/2022 | |
| 320 Pipe Stave Hollow Rd, Mount Sinai | 1,368 | 05/08/2023 | |
| 173 N Country Rd, Mount Sinai | |||
| 5477 Crystal Brook Hollow Rd, Mount Sinai | 12/07/2009 |