Brooklyn / Park Slope / 11215
851 CARROLL STREET
Recorded on the Digital Tax Map as 851 CARROLL STREET CONDOMINIUM.
What has sold here
Every transfer the City has recorded against this lot since 2003 with a consideration above zero. A co-op apartment has no deed, so its sale is recorded as a Real Property Transfer Tax return instead; both are printed here and the instrument is named in the last column. The figure is the consideration as filed, which is not always the price a buyer would recognise.
| Recorded | Consideration | Unit | What transferred | Instrument |
|---|---|---|---|---|
| 15 Oct 2025 | $1,900,000 | 4 | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 26 Jul 2024 | $1,795,000 | 5 | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 23 Jul 2024 | $2,300,000 | 2 | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 19 Jul 2024 | $2,119,163 | 3 | SINGLE RESIDENTIAL CONDO UNIT | DEED |
- DEED
- DEED. Conveys real property: a condominium apartment, or an entire building and the land under it.
By year
| Year | Transfers | Median recorded | Lowest | Highest |
|---|---|---|---|---|
| 2025 | 1 | $1,900,000 | - | - |
| 2024 | 3 | $2,119,163 | $1,795,000 | $2,300,000 |
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
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 |