NYC DOF FY2027 Final Assessment Roll

Housing

How NYC's roughly 3,931,954 residential units are distributed across boroughs, building sizes, construction eras, and owner types.

A quick note on properties vs. units: a "lot" or "property" is one tax parcel — it could be a single-family house or a 1,000-unit tower, and both count as one lot. A "residential unit" is one apartment/dwelling within that lot. The two numbers tell very different stories, which is why most charts below show both.

Total residential units
3,931,954
Pre-1974 multifamily units
1,760,798
54,268 lots · 44.8% of all units
Pre-1940 lots
495,343
1,764,902 units · 42.4% of all lots
Pre-1974 multifamily buildings are the age/size cohort most likely to fall under NYC's rent-stabilization rules — see how that maps to the regulated housing stock on the Rent Regulation page.

Residential units by borough

Buildings vs. residential units, by building-size band

A tiny number of very large buildings hold a large share of units — most lots are small

Housing stock composition

All NYC property types, citywide, largest first

Residential units by owner entity type

Individual is shown as an aggregate slice only — never named or ranked

Properties by decade built

Includes an 'Unknown' bucket for missing year-built data

Building-size bands

Lots (buildings) and residential units per band — the gap between the two columns is the properties-vs-units distinction in numbers.

Swipe to see all columns →

BandLotsUnitsShare of units
1577,680577,68015%
2272,513545,02614%
3–5102,715340,3799%
6–1029,643215,6475%
11–2011,876188,5565%
21–5013,049429,62011%
51–1006,784470,88812%
101–2503,344505,56013%
251–500836289,1337%
501–1000312212,6715%
1000+82156,7944%