A reference publication, not a listings portal
Before you buy an apartment, read the building's own record.
Listings tell you what a seller wants. The City tells you what actually happened: every transfer recorded against the building since 2003, what it was filed at, how the building is classified, how large it is, when it was built and last altered, and what the Department of Finance assesses it at. All of it is public. None of it is anywhere a buyer can read it.
27,122 buildings of 20 or more residential units. Or browse Manhattan, The Bronx, Brooklyn, Queens, Staten Island.
Buildings
27,122
Recorded transfers attached
595,287
Neighbourhoods
200
ZIP codes
181
Records retrieved
2026-09-04
What is on a building page
Every recorded transfer
Deeds for condominium apartments and whole buildings, and Real Property Transfer Tax returns for co-operative apartments, which have no deed. The consideration exactly as filed, the date it was recorded, the unit designation, and the instrument named.
The lot, drawn
Lot area, building area, storeys, floor area ratio already built against the residential floor area ratio the zoning district permits, drawn as a section through the lot rather than described in prose.
Classification and assessment
The Department of Finance building class in the agency's own words, the year built and the last alteration on file, the assessed land and total value, and the exempt value.
What is deliberately absent
No owner names. No estimate of what anything is worth. No verdict on whether a building or a price is good. This site reports; it does not appraise.
Where every figure comes from
Each page names its datasets and the date they were retrieved. Anything that could not be sourced is left blank rather than filled in.
How it is paid for
Flat-fee advertising, disclosed and labelled. No commission, no referral fee, nothing tied to a transaction closing.
The five boroughs
| Borough | County | Buildings | Residential units | Recorded transfers |
|---|---|---|---|---|
| Manhattan | New York County | 10,277 | 795,237 | 302,097 |
| The Bronx | Bronx County | 5,812 | 420,856 | 37,759 |
| Brooklyn | Kings County | 6,734 | 496,489 | 100,190 |
| Queens | Queens County | 3,996 | 372,071 | 142,328 |
| Staten Island | Richmond County | 303 | 29,217 | 12,913 |
The neighbourhoods with the most buildings on file
| Neighbourhood | Borough | Buildings | Residential units | Median apartment, 5 yr |
|---|---|---|---|---|
| East Village | Manhattan | 627 | 24,272 | $690k |
| Upper East Side-Yorkville | Manhattan | 618 | 40,674 | $694k |
| Upper West Side (Central) | Manhattan | 617 | 42,729 | $1.34m |
| Washington Heights (South) | Manhattan | 588 | 24,855 | $343k |
| Washington Heights (North) | Manhattan | 555 | 28,800 | $496k |
| Upper East Side-Carnegie Hill | Manhattan | 541 | 31,972 | $2.08m |
| Upper East Side-Lenox Hill-Roosevelt Island | Manhattan | 498 | 51,913 | $775k |
| Flatbush | Brooklyn | 433 | 22,511 | $525k |
| Bedford Park | The Bronx | 414 | 19,931 | $170k |
| Chelsea-Hudson Yards | Manhattan | 406 | 36,383 | $1.20m |
| Hamilton Heights-Sugar Hill | Manhattan | 395 | 15,876 | $373k |
| Williamsburg | Brooklyn | 390 | 21,191 | $1.15m |
| West Village | Manhattan | 366 | 17,614 | $1.10m |
| Hell's Kitchen | Manhattan | 360 | 30,121 | $734k |
| Harlem (North) | Manhattan | 358 | 20,708 | $624k |
| Mount Hope | The Bronx | 337 | 17,987 | $80k |
| Concourse-Concourse Village | The Bronx | 329 | 22,737 | $248k |
| Murray Hill-Kips Bay | Manhattan | 321 | 36,416 | $613k |
| Crown Heights (North) | Brooklyn | 319 | 15,387 | $651k |
| Upper West Side-Manhattan Valley | Manhattan | 314 | 21,146 | $950k |
| Astoria (Central) | Queens | 314 | 12,852 | $560k |
| Forest Hills | Queens | 306 | 33,223 | $345k |
| Harlem (South) | Manhattan | 299 | 14,079 | $777k |
| Bay Ridge | Brooklyn | 299 | 17,489 | $358k |
The buildings with the most transfers on file
A high count usually means a large condominium where every apartment is a separate recorded transaction. It is a fact about the record, not about the building.
| Address | Neighbourhood | Class | Res. units | Built | Transfers | Median apartment, 5 yr |
|---|---|---|---|---|---|---|
| 1409 METROPOLITAN OVAL | Parkchester | RM | 2,121 | - | 3,690 | $205k |
| 1722 PURDY STREET | Parkchester | R4 | 128 | - | 2,853 | $218k |
| 269 GRAND CENTRAL PKWY | Glen Oaks-Floral Park-New Hyde Park | D4 | 1,844 | 1972 | 2,583 | $447k |
| 1623 3 AVENUE | Upper East Side-Yorkville | RD | 710 | - | 1,625 | $875k |
| 350 WEST 42 STREET | Hell's Kitchen | RM | 551 | 2004 | 1,251 | $1.15m |
| 350 WEST 50 STREET | Hell's Kitchen | RM | 654 | 1989 | 1,184 | $760k |
| 209-90 23 AVENUE | Bay Terrace-Clearview | R4 | 1,037 | 1983 | 1,167 | $560k |
| 148 COZINE AVENUE | East New York-New Lots | R2 | 56 | 1990 | 1,153 | $325k |
| 33-34 CRESCENT STREET | Queensbridge-Ravenswood-Dutch Kills | D4 | 726 | 1950 | 1,050 | $470k |
| 34 NORTH 7 STREET | Williamsburg | RX | 205 | 2009 | 1,010 | $1.40m |
| 54-17 31 AVENUE | Astoria (East)-Woodside (North) | D4 | 966 | 1935 | 1,006 | $312k |
| 635 WEST 42 STREET | Hell's Kitchen | RM | 400 | 2005 | 946 | $914k |
Reading the record
Guide 01
How to read a building's sale history
Every row on a building page is a document that was filed with the City. Knowing what each kind of document is for is the difference between reading a price and misreading one.
Guide 02
What a building class code means
C1, D4, RM. Two characters on the tax roll decide how a building is taxed, what kind of ownership it usually carries, and how its record behaves.
Guide 03
What ACRIS is, and what it is not
The Automated City Register Information System is the filing cabinet for New York City property documents. It is authoritative about what was filed and silent about almost everything else.
Guide 04
Co-op and condominium in the record
The two forms of ownership leave completely different traces in the City's files. If you do not know which you are looking at, the sale history of a building will not make sense.
Guide 05
What the assessed value does and does not tell you
Every building page prints an assessed land value and an assessed total value. Both are real figures with a narrow purpose, and neither is what the building is worth.
When the record moves
Follow the record
A note when the files are refreshed
A short note when the City's files are refreshed and this site is rebuilt: what changed in the record, what was found wrong here and fixed, and anything new in the guides. Occasional. It goes out when the data does, which is not on a schedule.