Brooklyn / Park Slope / 11215
800 UNION STREET
Recorded on the Digital Tax Map as 800 UNION STREET CONDOMINIUM.
What has sold here
No transfer with a recorded consideration has been attached to this lot for 2003 onwards. That is common and it is not evidence that nothing changed hands. A building held by one owner since before 2003, a building transferred for no stated consideration, and a rental building that has simply never been sold all produce an empty record here. See how to read a sale history.
The building on the lot
Section through the lot
Assessment
Assessed value is the figure the Department of Finance uses to levy property tax. For a class two building it is derived from an income approach and it is capped in how fast it can rise. It is not a market valuation and the two figures routinely differ by a wide margin. What the assessment does and does not tell you.
Classification and location
The Department of Finance building classification list does not publish a description for code RM. On this site that code appears almost only on condominium billing lots.
Other buildings in Park Slope
| Address | Class | Res. units | Built | Transfers | Median apartment, 5 yr |
|---|---|---|---|---|---|
| 18 SIXTH AVE | RM | 858 | 2019 | 0 | - |
| 445 5TH AVENUE | RM | 754 | 1920 | 22 | $1.71m |
| 461 DEAN STREET | D8 | 363 | 2013 | 2 | - |
| 38 SIXTH AVENUE | RM | 303 | 2016 | 2 | $17.9m |
| 85 4TH AVENUE | D6 | 247 | 2025 | 0 | - |
| 128 5 AVENUE | D7 | 180 | 2023 | 0 | - |
| 341 10 STREET | D3 | 154 | 1968 | 0 | - |
| 535 4 AVENUE | D7 | 148 | 2015 | 0 | - |
| 35 4 AVENUE | D6 | 143 | 2022 | 0 | - |
| 10 PLAZA ST EAST | D4 | 134 | 1959 | 100 | $896k |
| 357 9 STREET | RM | 131 | 1920 | 0 | - |
| 343 4 AVENUE | RM | 113 | 2006 | 220 | $1.18m |