| Primary address | 818 Union Street |
| Neighborhood | Park Slope |
| Zip code | 11215 |
| Borough | Brooklyn |
| Block & lot | 01065-0005 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Tax class | Register |
| Estimated property tax | $14,648 |
| Lot sqft | 1,995 |
| Lot dimensions | |
| Building class | Two Family Converted from One Family (B3) |
| Building sqft | 4,480 |
| Building dimensions | |
| Buildings on lot | 1 |
| Stories | 3 |
| Structure type | Brownstone |
| Building material | Brick |
| Exterior wall | Brick/masonry |
| Basement type | Full |
| Year built | 1890 |
| Frontage(s) | Union Street (wide) |
| School district | 15 |
| Community district | 6 |
| Closest police station | 0.45 Miles |
| Closest fire station | 0.08 Miles |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
New York property reports include comprehensive occupancy, development and violation information. Create a free account to access valuable data points such as:
818 Union Street, Brooklyn, NY 11215 was built in 1890 and has a total of 4,480 square feet.
What is the assessed value of 818 Union Street, Brooklyn, NY 11215 and the property tax paid?Assessed at $348,660, the tax amount paid for 818 Union Street, Brooklyn, NY 11215 is $13,821. For the next year, the tax amount for 818 Union Street, Brooklyn, NY 11215 is estimated at $14,648.
When was 818 Union Street, Brooklyn, NY 11215 last sold?818 Union Street, Brooklyn, NY 11215 was last sold in 12/05/2024.
How many residential units does this building have?This building has 2 residential unit(s).
View property contacts like owners, building management, representatives from permits and tenants with a free account. For LLC-owned properties, access manually researched real owners and phone numbers.
Create a free account to view the complete sales history for 818 Union Street, Brooklyn, including title documents, transfer conditions, mortgages, liens, and pre-foreclosures.
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 818 Union Street, Brooklyn, NY 11215. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year: | 2025-2026 |
| Property tax: | $13,821 |
| Estimated property tax: | $14,648 |
| Tax assessor's market value: | $5,811,000 |
| Assessed value: | $348,660 |
Here's the assessment & property tax history for 818 Union Street, Brooklyn, including the evolution of the total tax rate and corresponding property tax.
| Year | Market value | Assessed value | Taxable | Tax rate % | Base tax | Property tax | Year over year change |
|---|---|---|---|---|---|---|---|
| 2025/26 | $5,811,000 | $348,660 | $69,653 | 19.843% | $13,821 | $13,821 | +3.26% |
| 2024/25 | $4,590,000 | $275,400 | $66,644 | 20.085% | $13,385 | $13,385 | +0.16% |
| 2023/24 | $4,745,000 | $284,700 | $66,536 | 20.085% | $13,364 | $13,364 | +4.83% |
| 2022/23 | $5,199,000 | $311,940 | $62,772 | 20.309% | $12,748 | $12,748 | +6.30% |
| 2021/22 | $4,014,000 | $240,840 | $60,078 | 19.963% | $12,281 | $11,993 | +0.62% |
The complete history of permits filed for 818 Union Street, Brooklyn, 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 Park Slope so you can assess current trends, home values, types of properties sold and transaction volume.
View the median home sale price in Park Slope and compare it to other neighborhoods in Brooklyn.
Check out recently sold homes in Brooklyn and see how their prices compare.
| FEMA flood zone(s): | X (See more on map) |
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Distance to Subway
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| Closest station | Flatbush Ave & Plaza Street West at NW Corner | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Station lines | 2-3 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Distance (miles) | 0.22 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Bus Routes
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| Name | 7 Av/Union St | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line | B67 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Distance (miles) | 0.043 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Name | Rating | Att. zoned | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|---|
| P.S. 321 William Penn | 9 | Yes | Public | K-5 | 1,216 | 0.24 |
| St Francis Xavier School | NR | No | Private | PK-8 | 175 | 0.10 |
| St Francis Xavier School | NR | No | Private | PK-8 | 175 | 0.10 |
| Berkeley Carroll School | NR | No | Private | PK-12 | 977 | 0.12 |
| Berkeley Carroll School | NR | No | Private | PK-12 | 977 | 0.12 |
| Name | Rating | Att. zoned | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|---|
| St Francis Xavier School | NR | No | Private | PK-8 | 175 | 0.10 |
| Berkeley Carroll School | NR | No | Private | PK-12 | 977 | 0.12 |
| Berkeley Carroll Elementary School | NR | No | Private | PK-12 | 940 | 0.14 |
| Is 340 | 7 | No | Public | 6-8 | 150 | 0.32 |
| Ms 266 Park Place Community Middle School | 4 | No | Public | 6-8 | 69 | 0.33 |
| Name | Rating | Att. zoned | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|---|
| Berkeley Carroll School | NR | No | Private | PK-12 | 977 | 0.12 |
| Berkeley Carroll Elementary School | NR | No | Private | PK-12 | 940 | 0.14 |
| P.S. 77 | NR | No | Public | K-12 | 304 | 0.33 |
| Poly Prep Lower School | NR | No | Private | 0 | 0.35 | |
| Park Slope Collegiate | 4 | No | Public | 6-12 | 577 | 0.38 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 818 Union Street, Brooklyn, NY 11215.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 816 Union St, Brooklyn | 4,300 | 02/27/2023 | |
| 830 Union St, Brooklyn | 3,910 | 12/28/2004 | |
| 925 Union St, Brooklyn | 43,032 | 08/19/2004 | $735,000 |
| 47 Plaza St W, Brooklyn | 94,821 | 09/14/2004 | $860,000 |
| 836 Union St, Brooklyn | 3,926 | 08/08/2002 | |
| 39 Plaza St W, Brooklyn | 65,000 | 04/03/1981 | |
| 832 Union St, Brooklyn | 3,926 | 09/18/2013 | $2,300,000 |
| 838 Union St, Brooklyn | 4,120 | 12/09/2024 | |
| 99 7th Ave, Brooklyn | 10,986 | 12/28/2004 | |
| 45 Plaza St W, Brooklyn | 46,200 | 07/08/1982 | |
| 272 Berkeley Pl, Brooklyn | 4,524 | 11/29/2017 | |
| 270 Berkeley Pl, Brooklyn | 4,256 | 03/16/2023 | |
| 834 Union St, Brooklyn | 3,926 | 12/06/2018 | $3,600,000 |
| 820 Union St, Brooklyn | 4,200 | 08/01/2024 | $4,950,000 |
| 822 Union St, Brooklyn | 4,656 | 01/10/1972 | |
| 824 Union St, Brooklyn | 4,480 | 06/28/2006 | $2,750,000 |
| 826 Union St, Brooklyn | 4,377 | 07/10/2002 | |
| 828 Union St, Brooklyn | 4,120 | 06/06/2022 | $4,750,000 |
| 814 Union St, Brooklyn | 3,254 | 03/17/2016 | |
| 276 Berkeley Pl, Brooklyn | 5,586 | 06/14/2010 | $3,950,000 |
