Manhattan / Midtown South-Flatiron-Union Square / 10010
39 WEST 23RD STREET
Recorded on the Digital Tax Map as FLATIRON HOUSE CONDOMINIUM.
Boro1
Block825
Lot7502
BBL1008257502
Residential units
45
Units in total
48
Storeys
25
Year built
2018
Last alteration on file
-
Recorded transfers
50 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 |
|---|---|---|---|---|
| 24 Jul 2026 | $3,475,000 | 7A | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 13 Jul 2026 | $1,825,000 | 8B | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 11 May 2026 | $12,000,000 | PH | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 13 Apr 2026 | $22,000 | TH | SINGLE RESIDENTIAL CONDO UNIT | RPTT&RET |
| 3 Mar 2026 | $4,995,000 | 17A | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 8 Aug 2025 | $6,601,289 | TH | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 5 May 2025 | $10,819,950 | 23A | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 29 Apr 2025 | $4,473,909 | 701 | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 14 Apr 2025 | $10,100,000 | 22A | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 24 Mar 2025 | $202,325 | PHN | SINGLE RESIDENTIAL CONDO UNIT | RPTT&RET |
| 24 Feb 2025 | $50,000 | PHN | SINGLE RESIDENTIAL CONDO UNIT | RPTT&RET |
| 21 Feb 2025 | $3,950,000 | 601 | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 13 Feb 2025 | $4,290,000 | 801 | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 3 Feb 2025 | $8,500,000 | PHN | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 21 Nov 2024 | $10,250,000 | 24A | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 4 Nov 2024 | $3,450,000 | 9A | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 10 Oct 2024 | $9,246,113 | 21A | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 10 Oct 2024 | $12,137,813 | PH | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 2 Aug 2024 | $4,630,000 | 17A | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 16 Jul 2024 | $4,550,000 | 16A | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 18 Mar 2024 | $4,228,967 | 16B | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 23 Feb 2024 | $12,120,000 | 19A | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 31 Jan 2024 | $4,025,000 | 17B | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 10 Oct 2023 | $2,056,865 | 6B | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 29 Sep 2023 | $2,260,515 | 11B | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 18 Aug 2023 | $2,330,000 | 301 | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 15 Aug 2023 | $3,795,000 | 12A | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 14 Jul 2023 | $2,360,000 | 12B | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 7 Jul 2023 | $3,925,000 | 15A | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 30 Jun 2023 | $4,200,000 | 501 | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 29 Jun 2023 | $3,350,000 | 4A | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 15 Jun 2023 | $3,500,000 | 10A | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 19 May 2023 | $1,883,763 | 7B | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 4 May 2023 | $1,850,000 | 5B | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 2 May 2023 | $2,100,000 | 10B | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 21 Apr 2023 | $2,995,000 | 3A | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 27 Mar 2023 | $3,390,000 | 8A | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 23 Mar 2023 | $1,950,000 | 9B | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 17 Feb 2023 | $3,525,000 | 11A | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 10 Feb 2023 | $1,750,000 | 3B | SINGLE RESIDENTIAL CONDO UNIT | DEED |
| 50 transfers are recorded against this building since 2003. The 40 most recent are printed here; the yearly summary above counts all of them. | ||||
- DEED
- DEED. Conveys real property: a condominium apartment, or an entire building and the land under it.
- 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 | 5 | $3,475,000 | $22,000 | $12,000,000 |
| 2025 | 9 | $4,473,909 | $50,000 | $10,819,950 |
| 2024 | 9 | $4,630,000 | $3,450,000 | $12,137,813 |
| 2023 | 21 | $2,406,763 | $1,750,000 | $4,200,000 |
| 2022 | 6 | $3,400,000 | $2,055,000 | $5,450,000 |
02
The building on the lot
Section through the lot
Lot area
8,063 sq ft
Building area
85,439 sq ft
Residential area
84,429 sq ft
Commercial area
1,010 sq ft
Office area
-
Retail area
993 sq ft
Buildings on the lot
1
Built floor area ratio
10.6
Residential FAR permitted
12
Zoning district
M1-8A/R11
03
Assessment
Assessed land value
$2,162,702
Assessed total value
$19,084,945
Exempt value
$0
Assessed per residential unit
$424,110
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
RM
Neighbourhood
Midtown South-Flatiron-Union Square
ZIP code
10010
Community district
Manhattan 5
Council district
3
Coordinates
40.74257, -73.990928
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.
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