Brooklyn / Park Slope / 11215
420 12 STREET
Boro3
Block1098
Lot1
BBL3010980001
Residential units
70
Units in total
70
Storeys
4
Year built
1881
Last alteration on file
1983
Recorded transfers
88 since 2003
01
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 Jul 2026 | $2,700,000 | F3L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 2 Feb 2026 | $1,900,000 | N3R | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 24 Jul 2025 | $995,000 | P3R | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 21 Jul 2025 | $2,495,000 | J4L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 27 Jun 2025 | $1,995,000 | E1L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 4 Apr 2025 | $2,132,000 | D3L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 23 Jan 2025 | $2,570,000 | F1L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 14 Nov 2024 | $1,625,000 | P2L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 7 Nov 2024 | $2,000,000 | N3R | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 6 Feb 2024 | $1,885,000 | H1L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 17 Aug 2023 | $1,700,000 | C3L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 20 Jun 2023 | $2,150,000 | J1R | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 5 Jan 2023 | $1,995,000 | L1R | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 10 Aug 2022 | $2,550,000 | K1R | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 13 Dec 2021 | $1,120,000 | G1L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 8 Sep 2021 | $1,600,000 | C1L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 19 Aug 2021 | $1,775,000 | N1R | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 17 Aug 2021 | $2,120,000 | J4L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 27 Jul 2021 | $1,637,500 | B1R | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 24 Feb 2021 | $2,095,000 | F1L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 2 Feb 2021 | $1,575,000 | H1L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 5 Jan 2021 | $1,649,000 | B2L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 28 Oct 2020 | $1,400,000 | A3L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 3 Aug 2020 | $2,075,000 | F3R | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 18 Jun 2020 | $2,022,500 | B3R | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 3 Dec 2019 | $1,240,000 | P3L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 13 Sep 2019 | $1,737,500 | B1L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 8 Aug 2019 | $1,350,000 | C4L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 17 Jun 2019 | $1,600,000 | N3R | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 21 Feb 2019 | $1,640,000 | L1R | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 17 Apr 2018 | $1,837,500 | L3L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 29 Jan 2018 | $1,950,000 | J1R | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 1 Nov 2017 | $1,800,000 | J4L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 1 Aug 2017 | $1,350,000 | C3L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 20 Jun 2017 | $1,450,000 | N3R | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 30 Aug 2016 | $1,850,000 | B3R | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 22 Jul 2016 | $1,350,000 | P2L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 20 Jul 2016 | $1,650,000 | M1R | SINGLE RESIDENTIAL COOP UNIT | RPTT |
| 1 Jul 2016 | $494,825 | E3R | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 20 Jun 2016 | $1,600,000 | B2L | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 88 transfers are recorded against this building since 2003. The 40 most recent are printed here; the yearly summary above counts all of them. | ||||
- RPTT&RET
- BOTH RPTT AND RETT. A New York City Real Property Transfer Tax return filed together with the New York State return. A co-operative apartment sale conveys shares rather than real property, so this return, and not a deed, is what gets recorded.
- RPTT
- NYC REAL PROPERTY TRANSFER TAX. A New York City Real Property Transfer Tax return filed on its own.
By year
| Year | Transfers | Median recorded | Lowest | Highest |
|---|---|---|---|---|
| 2026 | 2 | $2,300,000 | $1,900,000 | $2,700,000 |
| 2025 | 5 | $2,132,000 | $995,000 | $2,570,000 |
| 2024 | 3 | $1,885,000 | $1,625,000 | $2,000,000 |
| 2023 | 3 | $1,995,000 | $1,700,000 | $2,150,000 |
| 2022 | 1 | $2,550,000 | - | - |
| 2021 | 8 | $1,643,250 | $1,120,000 | $2,120,000 |
| 2020 | 3 | $2,022,500 | $1,400,000 | $2,075,000 |
| 2019 | 5 | $1,600,000 | $1,240,000 | $1,737,500 |
| 2018 | 2 | $1,893,750 | $1,837,500 | $1,950,000 |
| 2017 | 3 | $1,450,000 | $1,350,000 | $1,800,000 |
| 2016 | 5 | $1,600,000 | $494,825 | $1,850,000 |
| 2015 | 4 | $1,535,500 | $1,240,000 | $1,650,000 |
| 2014 | 4 | $1,575,000 | $1,335,000 | $1,850,000 |
| 2013 | 6 | $1,293,250 | $663,000 | $1,592,000 |
| 2012 | 3 | $900,000 | $20,000 | $1,100,000 |
| 2011 | 4 | $678,750 | $540,000 | $1,295,000 |
| 2010 | 4 | $775,000 | $510,500 | $910,000 |
| 2009 | 2 | $685,250 | $630,500 | $740,000 |
| 2008 | 4 | $1,012,500 | $775,000 | $1,250,000 |
| 2007 | 4 | $902,500 | $138,637 | $990,000 |
| 2006 | 4 | $770,152 | $510,000 | $965,000 |
| 2005 | 2 | $699,000 | $399,000 | $999,000 |
| 2004 | 7 | $675,000 | $382,000 | $850,000 |
02
The building on the lot
Section through the lot
Lot area
40,800 sq ft
Building area
109,380 sq ft
Residential area
109,380 sq ft
Commercial area
-
Office area
-
Retail area
-
Buildings on the lot
1
Built floor area ratio
2.68
Residential FAR permitted
2
Zoning district
R6B
03
Assessment
Assessed land value
$958,500
Assessed total value
$7,875,900
Exempt value
$53,020
Assessed per residential unit
$112,513
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.
04
Classification and location
Building class
C6WALK-UP COOPERATIVE
Neighbourhood
Park Slope
ZIP code
11215
Community district
Brooklyn 6
Council district
39
Coordinates
40.664582, -73.982907
05
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 |