| Primary address | 4 Old Field Lane, Mount Sinai |
| Zip code | 11766 |
| County | Suffolk |
| Municipality | Brookhaven |
| Parcel ID | 1143304 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Property tax | $18,217 |
| Building sqft | 3,040 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.91 |
| Year built | 1988 |
| Rooms | 9 |
| Bedrooms | 4 |
| Bathrooms | 2 |
| 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:
4 Old Field Lane, Mount Sinai, NY 11766 was built in 1988 and has a total of 3,040 square feet.
What is the assessed value of 4 Old Field Lane, Mount Sinai, NY 11766 and the property tax paid?Assessed at $4,430, the tax amount paid for 4 Old Field Lane, Mount Sinai, NY 11766 is $18,217.
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 4 Old Field Lane, Mount Sinai, including title documents, transfer conditions, mortgages and liens.
Access detailed property tax data for 4 Old Field Lane, 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 | $18,217 |
| Market value | $835,849 |
| Assessed value | $4,430 |
Here's the assessment & property tax history for 4 Old Field Lane, 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 | $835,849 | $4,430 | 394.249 | $17,465 | +3.18% |
| 2023-2024 | $820,370 | $4,430 | 382.097 | $16,927 | +3.44% |
| 2022-2023 | $714,516 | $4,430 | 369.378 | $16,363 | +2.22% |
| 2021-2022 | $598,649 | $4,430 | 361.352 | $16,008 | +2.37% |
| 2020-2021 | $575,325 | $4,430 | 352.982 | $15,637 | +2.16% |
The complete history of permits filed for 4 Old Field Lane, 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 4 Old Field Lane, 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 4 Old Field Lane, 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 | 0.39 |
| Port Jefferson Elementary School | 5 | Public | PK, K-5 | 364 | 1.39 |
| Port Jefferson Elementary School | 5 | Public | PK, K-5 | 364 | 1.39 |
| Maryhaven Center Of Hope | NR | Private | 47 | 1.55 | |
| Mount Sinai Elementary School | 7 | Public | K-4 | 659 | 1.80 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Mount Sinai Middle School | 5 | Public | 5-8 | 667 | 0.39 |
| Maryhaven Center Of Hope | NR | Private | 47 | 1.55 | |
| John F Kennedy Middle School | 4 | Public | 4, 6-8 | 822 | 2.00 |
| Port Jefferson Middle School | 7 | Public | 6-8 | 222 | 2.14 |
| North Country Road School | 5 | Public | 6-8 | 534 | 2.20 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Mount Sinai High School | 9 | Public | 9-12 | 720 | 0.16 |
| Maryhaven Center Of Hope | NR | Private | 47 | 1.55 | |
| Earl L Vandermeulen High School | 9 | Public | 9-12 | 323 | 2.14 |
| Miller Place High School | 9 | Public | 9-12 | 820 | 2.16 |
| Comsewogue High School | 6 | Public | 9-12 | 1,153 | 2.28 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 4 Old Field Lane, Mount Sinai.