| Primary address | 857 Union Street |
| Secondary address | 89 7th Ave |
| Neighborhood | Park Slope |
| Zip code | 11217 |
| Borough | Brooklyn |
| Block & lot | 01063-0001 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Purchase date | 12/04/2014 |
| Purchase price | $8,366,250 |
| Tax class | Register |
| Estimated property tax | $204,624 |
| Lot sqft | 2,596 |
| Lot dimensions | |
| Property type | Walk-up Apartment - Over Six Families with Stores (C7)
|
| Building sqft | 10,240 |
| Building dimensions |
| Buildings on lot | 1 |
| Stories | 4 |
| Year built | 1920 |
| Construction type | Register |
| School district | 13 |
| Community district | 6 |
| Closest police station | 0.43 Miles |
| Closest fire station | 0.07 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:
You will find all alternate addresses for the property in this section.
This Walk-up Apartment - Over Six Families with Stores (C7) located at 857 Union Street, Brooklyn, NY 11217 has a total of 10,240 square feet and a current price per square foot of $817.
What is the year built & the current market value of 857 Union Street, Brooklyn, NY 11217?857 Union Street, Brooklyn, NY 11217 was built in 1920 and has a current tax assessor's market value of $3,741,000.
How many commercial spaces does this building have?This building has 2 commercial spaces available for lease.
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 857 Union Street, Brooklyn, including title documents, transfer conditions, mortgages, liens, and pre-foreclosures.
| Purchase date | Purchase price | Buyer name | Seller name |
|---|---|---|---|
| 12/04/2014 | $8,366,250 | Register | Register |
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 857 Union Street, Brooklyn, NY 11217. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year: | 2025-2026 |
| Property tax: | $184,462 |
| Estimated property tax: | $204,624 |
| Tax assessor's market value: | $3,741,000 |
| Assessed value: | $1,683,450 |
Here's the assessment & property tax history for 857 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 | $3,741,000 | $1,683,450 | $1,482,930 | 12.439% | $184,462 | $184,462 | +5.86% |
| 2024/25 | $3,263,000 | $1,468,350 | $1,394,010 | 12.5% | $174,251 | $174,251 | +5.08% |
| 2023/24 | $3,477,000 | $1,564,650 | $1,326,420 | 12.502% | $165,829 | $165,829 | +17.04% |
| 2022/23 | $3,326,000 | $1,496,700 | $1,154,970 | 12.267% | $141,680 | $141,680 | +21.47% |
| 2021/22 | $2,670,000 | $1,201,500 | $953,280 | 12.235% | $116,634 | $116,634 | +19.16% |
The complete history of permits filed for 857 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 Brooklyn so you can assess current trends, property values, types of properties sold and transaction volume. View the median price per sqft in Brooklyn and compare it to other boroughs in New York City.
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) | 0.208 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Bus Routes
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| Name | 7 Av/Union St | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line | B67 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Distance (miles) | 0.026 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Here are the neighbors for 857 Union Street, Brooklyn, NY 11217.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 77 7th Ave, Brooklyn | 13,760 | 09/18/1990 | |
| 240 Berkeley Pl, Brooklyn | 5,912 | 02/28/2025 | $6,262,800 |
| 29 8th Ave, Brooklyn | 5,569 | 09/25/2007 | |
| 54 8th Ave, Brooklyn | 6,350 | 06/02/2004 | $1,960,000 |
| 186 Berkeley Pl, Brooklyn | 3,500 | 01/14/1998 | |
| 27 8th Ave, Brooklyn | 5,862 | 06/14/2018 | $5,300,000 |
| 45 8th Ave, Brooklyn | 7,530 | 11/10/2010 | |
| 49 8th Ave, Brooklyn | 6,060 | 04/19/2010 | $2,691,000 |
| 85 7th Ave, Brooklyn | 4,820 | 01/09/2009 | |
| 83 7th Ave, Brooklyn | 5,060 | 05/15/2012 | |
| 81 7th Ave, Brooklyn | 7,905 | 09/14/2022 | $10,575,000 |
| 184 Berkeley Pl, Brooklyn | 4,120 | 09/23/2016 | |
| 56 8th Ave, Brooklyn | 5,548 | 05/01/2025 | $5,850,000 |
| 25 Plaza St W, Brooklyn | 72,900 | 11/15/1984 | |
| 31 8th Ave, Brooklyn | 4,800 | 07/12/1984 | |
| 33 8th Ave, Brooklyn | 5,247 | 06/04/2025 | |
| 37 8th Ave, Brooklyn | 5,207 | 01/11/2011 | |
| 43 8th Ave, Brooklyn | 5,804 | 07/02/2021 | $5,950,000 |
| 39 8th Ave, Brooklyn | 7,032 | 02/25/1972 | |
| 60 8th Ave, Brooklyn | 5,500 | 02/22/2018 |
