| Primary address | 645 Park Avenue, Uniondale |
| Zip code | 11553 |
| County | Nassau |
| Town/City | Hempstead |
| Village (swiss code) | None (unincorporated town) |
| Parcel ID | 50-418-1 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Building sqft | 2,293 |
| Building class | Converted Residence - Primary Use Residential (483.04) |
| Acreage | 0.175 |
| Buildings on lot | 1 |
| Year built | 1950 |
| Stories | 1 |
| Zoning district | Register (See more on map) |
| Capitalization rate | Register |
| Street | Paved |
| Traffic | Medium |
| Area type | Neighborhood or spot |
| School district | Uniondale UFSD |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
| Square footage | Structure | Grade | Year built | Stories |
|---|---|---|---|---|
| 2,293 | Mixed residential/commercial | C | 1950 | 1 |
| Floors | Square footage | Use | Construction | Condition | Exterior wall | Heating | Air conditioning | Plumbing |
|---|---|---|---|---|---|---|---|---|
| B1-B1 | 769 | Unfin res bsmt | Register | Register | Register | Register | Register | |
| 01-01 | 180 | Dwg conv-office | Register | Register | Register | Register | Central | Register |
| 01-01 | 1,357 | Dwg conv-office | Register | Register | Register | Register | Central | Register |
| 02-02 | 756 | Multi-use apartments | Register | Register | Register | Register | Central | Register |
Find the size and usage for each floor in the building, plus corresponding details on construction type, physical condition, heating, and plumbing.
See the number of units in the building and the rent per apartment.
Check out a breakdown by type of rentable square feet and the rent charged for each, including detailed info on expenses, gross/net income, income and expense rate.
Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:
645 Park Avenue, Uniondale, NY 11553 was built in 1950 and has a total of 2,293 square feet.
What is the assessed value of 645 Park Avenue, Uniondale, NY 11553 and the property tax paid?Assessed at $2,783, the tax amount paid for 645 Park Avenue, Uniondale, NY 11553 is $19,817.
When was 645 Park Avenue, Uniondale, NY 11553 last sold and what was the last sale price?645 Park Avenue, Uniondale, NY 11553 was last sold in 01/21/2010 for $349,000.
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Create a free account to view the complete sales history for 645 Park Avenue, Uniondale, 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 645 Park Avenue, Uniondale, NY 11553. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2026 |
| Property tax | $19,817 |
| Market value | $278,300 |
| Assessed value | $2,783 |
Here's the assessment & property tax history for 645 Park Avenue, Uniondale, 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 |
|---|---|---|---|---|---|
| 2026 | $278,300 | $2,783 | 712.074 | $19,817 | +3.99% |
| 2025 | $278,300 | $2,783 | 684.734 | $19,056 | +11.25% |
| 2024 | $278,320 | $2,783 | 627.445 | $17,129 | +1.42% |
| 2023 | $278,300 | $2,783 | 667.053 | $16,890 | -15.64% |
| 2022 | $278,300 | $2,783 | 719.396 | $20,021 | -13.76% |
The complete history of permits filed for 645 Park Avenue, Uniondale, 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 Hempstead so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Hempstead and compare it to other neighborhoods in Nassau County.
Check out recently sold homes in Hempstead and see how their prices compare.
Create a free account to unlock extended information for 645 Park Avenue, Uniondale, 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 645 Park Avenue, Uniondale 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) |
|---|---|---|---|---|---|
| Northern Parkway Elementary School | 5 | Public | PK, K-5 | 543 | 0.30 |
| Northern Parkway Elementary School | 5 | Public | PK, K-5 | 543 | 0.30 |
| Pat Kam School & Early Childhood Center | NR | Private | PK, K-5 | 126 | 0.32 |
| Pat Kam School & Early Childhood Center | NR | Private | PK, K-5 | 126 | 0.32 |
| Smith Street Elementary School | 5 | Public | PK, K-5 | 408 | 0.65 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| St Martin De Porres Marianist School | NR | Private | PK, K-8 | 427 | 0.72 |
| Lawrence Road Middle School | 3 | Public | 6-8 | 682 | 0.74 |
| Turtle Hook Middle School | 4 | Public | 6-8 | 669 | 0.75 |
| Community Academic Prep | NR | Private | K-10 | 16 | 0.91 |
| Roosevelt Middle School | 5 | Public | 7-8 | 455 | 1.01 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Roosevelt High School | 3 | Public | 9-12 | 1,075 | 0.87 |
| Community Academic Prep | NR | Private | K-10 | 16 | 0.91 |
| Uniondale High School | 4 | Public | 9-12 | 2,080 | 1.18 |
| Bundle of Joy Kindergarten | NR | Private | 0 | 1.35 | |
| Kellenberg Memorial High School | NR | Private | 6-12 | 2,549 | 1.78 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 645 Park Avenue, Uniondale.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 664 Summer Ave, Uniondale | 1,122 | 02/12/2015 | |
| 670 Summer Ave, Uniondale | 1,413 | 09/23/2019 | $435,000 |
| 676 Summer Ave, Uniondale | 1,201 | 08/09/2005 | $410,000 |
| 694 Summer Ave, Uniondale | 1,495 | 09/17/2020 | $475,000 |
| 755 Summer Ave, Uniondale | 1,329 | 05/24/2018 | $470,000 |
| 773 Summer Ave, Uniondale | 1,300 | 09/18/2014 | $254,700 |
| 789 Summer Ave, Uniondale | 1,627 | 07/16/2018 | $480,000 |
| 912 Spring Ave, Uniondale | 1,417 | 12/21/2004 | |
| 761 Summer Ave, Uniondale | 1,329 | 02/23/1994 | $140,000 |
| 767 Summer Ave, Uniondale | 1,373 | 03/08/2025 | $140,000 |
| 779 Summer Ave, Uniondale | 1,502 | 12/19/2025 | $715,000 |
| 743 Summer Ave, Uniondale | 1,329 | 09/23/2021 | |
| 863 Uniondale Ave, Uniondale | 1,937 | 05/15/2019 | |
| 646 Summer Ave, Uniondale | 1,399 | 07/21/2009 | |
| 700 Summer Ave, Uniondale | 1,458 | 09/04/2007 | $386,250 |
| 749 Summer Ave, Uniondale | 1,502 | 10/08/2014 | |
| 688 Summer Ave, Uniondale | 1,140 | 09/08/2005 | |
| 682 Summer Ave, Uniondale | 1,122 | 11/24/2021 | $525,000 |
| 706 Summer Ave, Uniondale | 1,122 | ||
| 790 Fall Ave, Uniondale | 1,329 | 09/14/1994 | $149,000 |