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| Primary address | 321 Union Street |
| Neighborhood | Carroll Gardens |
| Zip code | 11231 |
| Borough | Brooklyn |
| Block & lot | 00428-7503 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Tax class | Register |
| Lot sq. ft. | 4,067 |
| Lot dimensions | |
| Property type | Special Condominium Billing Lot (R0)
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| Building sqft | 9,119 |
| Building dimensions | |
| Buildings on lot | 1 |
| Stories | 4 |
| Frontage(s) | Union Street (narrow) Sackett Street (narrow) |
| Nearest wide street | Court Street |
| Distance to wide street | Register |
| School district | 15 |
| Community district | 6 |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
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This Special Condominium Billing Lot (R0) located at 321 Union Street, Brooklyn, NY 11231 has a total of 9,119 square feet.
How many residential units does this building have?This building has 7 residential unit(s).
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Create a free account to view the complete sales history for 321 Union Street, Brooklyn, including title documents, transfer conditions, mortgages, liens, and pre-foreclosures.
The complete history of permits filed for 321 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 Carroll Gardens so you can assess current trends, home values, types of properties sold and transaction volume.
View the median home sale price in Carroll Gardens 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 | Smith St & President St at NW Corner | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Station lines | F-G | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Distance (miles) | 0.084 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Bus Routes
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| Name | Court St/Sackett St | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line | B57 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Distance (miles) | 0.071 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Name | Rating | Att. zoned | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|---|
| P.S. 32 Samuels Mills Sprole | 6 | Yes | Public | PK, K-5 | 452 | 0.23 |
| P.S. 32 Samuels Mills Sprole | 6 | Yes | Public | PK, K-5 | 452 | 0.23 |
| P.S. 58 The Carroll | 8 | No | Public | PK, K-5 | 751 | 0.14 |
| P.S. 58 The Carroll | 8 | No | Public | PK, K-5 | 751 | 0.14 |
| Pache Montessori | NR | No | Private | PK-K | 122 | 0.14 |
| Name | Rating | Att. zoned | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|---|
| Hannah Senesh Community Day School | NR | No | Private | K-8 | 231 | 0.19 |
| School For International Studies | 5 | No | Public | 6-12 | 782 | 0.20 |
| Mary McDowell Friends School | NR | No | Private | 6-10 | 290 | 0.37 |
| Brooklyn Heights Montessori School | NR | No | Private | PK-8 | 260 | 0.41 |
| Brooklyn Secondary School For Collaborative Studie | 6 | No | Public | 6-12 | 671 | 0.43 |
| Name | Rating | Att. zoned | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|---|
| Digital Arts and Cinema Technology High School | 8 | No | Public | 9-12 | 331 | 0.20 |
| School For International Studies | 5 | No | Public | 6-12 | 782 | 0.20 |
| New Dawn Charter High School | 2 | No | Charter | 9-12 | 233 | 0.25 |
| Cobble Hill School of American Studies | 1 | No | Public | 9-12 | 316 | 0.28 |
| Mary McDowell Friends School | NR | No | Private | 6-10 | 290 | 0.37 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 321 Union Street, Brooklyn, NY 11231.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 177 Union St, Brooklyn | 5,600 | ||
| 133 Water St, Brooklyn | 81,686 | ||
| 320 Smith St, Brooklyn | 16,091 | ||
| 415 36th St, Brooklyn | 16,316 | ||
| 531 52nd St, Brooklyn | 33,779 | ||
| 335 Warren St, Brooklyn | 8,097 | ||
| 54 Hicks St, Brooklyn | 5,438 | ||
| 284 20th St, Brooklyn | 18,855 | ||
| 298 20th St, Brooklyn | 5,700 | ||
| 38 7th Ave, Brooklyn | 5,813 | ||
| 326 State St, Brooklyn | 6,316 | ||
| 87 Smith St, Brooklyn | 143,297 | ||
| 713 40th St, Brooklyn | 5,750 | ||
| 91 Douglass St, Brooklyn | 5,674 | ||
| 140 Degraw St, Brooklyn | 6,162 | ||
| 215 Brighton 1 Ln, Brooklyn | 2,249 | 07/25/2008 | $510,000 |
| 5423 7th Ave, Brooklyn | 15,628 | ||
| 122 1st Pl, Brooklyn | 6,263 | ||
| 40 Sterling Pl, Brooklyn | 5,540 | ||
| 73 Conklin Ave, Brooklyn | 2,652 | 04/10/2018 | $405,000 |
