| Primary address | 819 Mount Avenue, Wyandanch |
| Zip code | 11798 |
| County | Suffolk |
| Municipality | Babylon |
| Parcel ID | 83-3-28 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 09/26/2025 |
| Sale price | $820,000 |
| Arm's length | Register |
| Property tax | $9,548 |
| Building sqft | 1,866 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.303
|
| Year built | 1961 |
| Bathrooms | 1 |
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:
819 Mount Avenue, Wyandanch, NY 11798 was built in 1961 and has a total of 1,866 square feet.
What is the assessed value of 819 Mount Avenue, Wyandanch, NY 11798 and the property tax paid?Assessed at $2,720, the tax amount paid for 819 Mount Avenue, Wyandanch, NY 11798 is $9,548.
When was 819 Mount Avenue, Wyandanch, NY 11798 last sold and what was the last sale price?819 Mount Avenue, Wyandanch, NY 11798 was last sold in 09/26/2025 for $820,000.
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 819 Mount Avenue, Wyandanch, 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 819 Mount Avenue, Wyandanch, NY 11798. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Property tax | $9,548 |
| Market value | $461,017 |
| Assessed value | $2,720 |
Here's the assessment & property tax history for 819 Mount Avenue, Wyandanch, 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 | $405,970 | $2,720 | 344.33 | $9,366 | +1.70% |
| 2023-2024 | $412,121 | $2,720 | 338.5657 | $9,209 | +1.29% |
| 2022-2023 | $348,718 | $2,720 | 334.2681 | $9,092 | +0.21% |
| 2021-2022 | $312,644 | $2,720 | 333.5693 | $9,073 | +1.44% |
| 2020-2021 | $298,901 | $2,720 | 328.8335 | $8,944 | +4.29% |
The complete history of permits filed for 819 Mount Avenue, Wyandanch, 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 819 Mount Avenue, Wyandanch, 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 819 Mount Avenue, Wyandanch 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) |
|---|---|---|---|---|---|
| La Francis Hardiman Elementary School | NR | Public | PK, K-2 | 624 | 0.24 |
| La Francis Hardiman Elementary School | NR | Public | PK, K-2 | 624 | 0.24 |
| Martin Luther King Elementary School | 3 | Public | 3-5 | 621 | 0.24 |
| ACADEMY CHARTER SCHOOL 2 | NR | Charter | K-2 | 144 | 0.71 |
| Belmont Elementary School | 5 | Public | K-5 | 370 | 1.06 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Milton L Olive Middle School | 5 | Public | 6-8 | 581 | 1.04 |
| Robert Frost Middle School | 7 | Public | 6-8 | 903 | 1.65 |
| Robert Moses Middle School | 4 | Public | 6-8 | 1,074 | 1.66 |
| St Cyril & Methodius Catholic School | NR | Private | PK-8 | 190 | 1.86 |
| Ss Cyril & Methodius School | NR | Private | PK-8 | 195 | 1.86 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Wyandanch Memorial High School | 2 | Public | 9-12 | 843 | 0.88 |
| Deer Park High School | 7 | Public | 9-12 | 1,314 | 1.92 |
| North Babylon High School | 6 | Public | 9-12 | 1,506 | 2.16 |
| West Babylon Senior High School | 7 | Public | 9-12 | 1,247 | 2.92 |
| Ascent School for Individuals With Autism | NR | Private | 4-12 | 24 | 2.94 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 819 Mount Avenue, Wyandanch.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 181 State Ave, Wyandanch | 1,260 | 04/17/2023 | |
| 831 Mount Ave, Wyandanch | 1,789 | 06/22/2020 | |
| 166 Parkway Blvd, Wyandanch | 1,190 | 09/15/2017 | $229,000 |
| 182 Parkway Blvd, Wyandanch | 912 | 03/07/2022 | $420,000 |
| 2 Holly CT, North Babylon | 1,763 | ||
| 253 W 22nd St, Deer Park | 1,880 | ||
| 6 Holly CT, North Babylon | 1,808 | 09/13/2021 | |
| 10 Holly CT, North Babylon | 2,066 | 11/02/2019 | |
| 4 Holly CT, North Babylon | 2,163 | 07/12/2019 | $412,000 |
| 255 W 22nd St, Deer Park | |||
| 94 Erlanger Blvd, North Babylon | 1,326 | 04/17/2025 | $610,000 |
| 241 W 22nd St, Deer Park | 1,619 | 04/25/1997 | $142,500 |
| 247 W 22nd St, Deer Park | 1,656 | 07/09/2019 | $440,000 |
| 187 State Ave, Wyandanch | 1,008 | ||
| 193 State Ave, Wyandanch | 720 | 10/15/2013 | $81,000 |
| 235 W 22nd St, Deer Park | 1,889 | ||
| 174 Parkway Blvd, Wyandanch | 912 | 12/21/2023 | $500,000 |
| 92 Erlanger Blvd, North Babylon | 1,680 | ||
| 229 W 22nd St, Deer Park | 1,619 | 02/07/2017 | $350,000 |
| 8 Holly CT, North Babylon | 2,066 | 08/12/2025 | $630,000 |