Manhattan / Midtown South-Flatiron-Union Square / 10010
4 WEST 21 STREET
Boro1
Block822
Lot45
BBL1008220045
Residential units
54
Units in total
56
Storeys
17
Year built
2005
Last alteration on file
-
Recorded transfers
141 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 |
|---|---|---|---|---|
| 18 Mar 2026 | $1,550,000 | 16A | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 30 Oct 2025 | $1,185,000 | 10D | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 17 Sep 2025 | $1,435,000 | 2D | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 4 Sep 2025 | $1,225,000 | 8D | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 5 May 2025 | $1,350,000 | 14D | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 15 Jul 2024 | $1,300,000 | 4D | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 28 Jun 2024 | $1,450,000 | 11B | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 27 Jun 2024 | $1,169,561 | 4B | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 30 May 2024 | $1,295,000 | 7C | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 18 May 2022 | $1,725,000 | 12B | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 13 Dec 2021 | $1,165,000 | 10C | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 16 Nov 2021 | $1,240,000 | 11C | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 14 Oct 2021 | $1,240,000 | 12A | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 8 Oct 2021 | $1,425,000 | 7D | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 30 Aug 2021 | $1,500,000 | 2D | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 24 Jun 2021 | $1,595,000 | 14B | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 14 Jun 2021 | $1,200,000 | 3D | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 10 Feb 2021 | $1,260,000 | 9A | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 6 Nov 2020 | $1,250,000 | 4C | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 29 Oct 2020 | $750,000 | 17B | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 24 Jan 2020 | $1,900,000 | 17A | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 5 Dec 2019 | $600,000 | 2A | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 5 Nov 2019 | $1,500,000 | 11D | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 14 Aug 2019 | $1,750,000 | 12D | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 22 Feb 2019 | $2,350,000 | 14B | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 1 Nov 2018 | $1,850,000 | 9A | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 9 Aug 2018 | $1,570,000 | 8C | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 9 Aug 2018 | $1,570,000 | 8C | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 8 Aug 2018 | $1,550,000 | 3D | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 2 Aug 2018 | $1,525,000 | 4C | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 19 Apr 2018 | $1,244,000 | 11C | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 28 Jun 2017 | $1,800,000 | 14-D | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 31 Jan 2017 | $2,000,000 | 4B | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 20 Dec 2016 | $1,800,000 | 3C | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 5 Oct 2016 | $1,720,000 | 5A | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 26 Aug 2016 | $2,075,000 | 6B | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 11 Aug 2016 | $1,700,000 | 4A | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 7 Jul 2016 | $1,890,000 | 8C | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 16 Jun 2016 | $1,726,000 | 7A | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 31 Aug 2015 | $2,075,000 | 10A | SINGLE RESIDENTIAL COOP UNIT | RPTT&RET |
| 141 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.
By year
| Year | Transfers | Median recorded | Lowest | Highest |
|---|---|---|---|---|
| 2026 | 1 | $1,550,000 | - | - |
| 2025 | 4 | $1,287,500 | $1,185,000 | $1,435,000 |
| 2024 | 4 | $1,297,500 | $1,169,561 | $1,450,000 |
| 2022 | 1 | $1,725,000 | - | - |
| 2021 | 8 | $1,250,000 | $1,165,000 | $1,595,000 |
| 2020 | 3 | $1,250,000 | $750,000 | $1,900,000 |
| 2019 | 4 | $1,625,000 | $600,000 | $2,350,000 |
| 2018 | 6 | $1,560,000 | $1,244,000 | $1,850,000 |
| 2017 | 2 | $1,900,000 | $1,800,000 | $2,000,000 |
| 2016 | 6 | $1,763,000 | $1,700,000 | $2,075,000 |
| 2015 | 3 | $2,075,000 | $1,895,000 | $2,275,000 |
| 2014 | 4 | $2,187,500 | $1,767,000 | $2,800,000 |
| 2013 | 12 | $1,932,500 | $1,290,000 | $5,200,000 |
| 2012 | 6 | $1,720,000 | $1,315,000 | $4,350,000 |
| 2011 | 5 | $1,525,000 | $1,395,000 | $1,815,000 |
| 2010 | 4 | $1,475,000 | $1,018,500 | $1,595,000 |
| 2009 | 5 | $1,325,000 | $1,060,000 | $1,500,000 |
| 2008 | 4 | $1,340,000 | $665,000 | $1,960,000 |
| 2007 | 5 | $1,731,025 | $1,591,000 | $2,325,000 |
| 2006 | 54 | $1,608,835 | $895,042 | $4,174,825 |
02
The building on the lot
Section through the lot
Lot area
9,384 sq ft
Building area
119,136 sq ft
Residential area
104,254 sq ft
Commercial area
14,882 sq ft
Office area
-
Retail area
2,604 sq ft
Buildings on the lot
1
Built floor area ratio
12.7
Residential FAR permitted
10
Zoning district
C6-4A
03
Assessment
Assessed land value
$900,000
Assessed total value
$18,077,400
Exempt value
$0
Assessed per residential unit
$334,767
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
D4ELEVATOR COOPERATIVE
Neighbourhood
Midtown South-Flatiron-Union Square
ZIP code
10010
Community district
Manhattan 5
Council district
3
Coordinates
40.740404, -73.991422
05
Other buildings in Midtown South-Flatiron-Union Square
| Address | Class | Res. units | Built | Transfers | Median apartment, 5 yr |
|---|---|---|---|---|---|
| 7 EAST 14 STREET | D4 | 495 | 1965 | 489 | $800k |
| 6 WEST 16 STREET | D4 | 481 | 1964 | 464 | $847k |
| 241 WEST 28 STREET | D6 | 480 | 2021 | 1 | - |
| 132 WEST 32 STREET | RM | 458 | 2005 | 1 | - |
| 56 WEST 23 STREET | D6 | 431 | 2000 | 0 | - |
| 7 WEST 14 STREET | D4 | 430 | 1964 | 418 | $885k |
| 5 EAST 22 STREET | RM | 423 | 1985 | 418 | $1.58m |
| 10 EAST 28 STREET | D6 | 416 | 1912 | 1 | - |
| 55 WEST 25 STREET | D6 | 407 | 2005 | 0 | - |
| 7 EAST 28 STREET | D8 | 404 | 1998 | 1 | - |
| 776 AVENUE OF THE AMERICAS | D8 | 387 | 2000 | 1 | - |
| 855 AVENUE OF THE AMERICAS | RM | 382 | 2014 | 0 | - |
Every building on file in Midtown South-Flatiron-Union Square