Flatiron, Manhattan

31 East 21st Street

A 18-unit mid-rise built in 1851 in Flatiron, Manhattan. We've seen 6 listings here since April 2026, with a one-bedroom asking a median of $3,995.
  • Built 1851
  • 18 units
  • Rent-stabilized units on record
  • Updated August 2026
1 bedroom ask
$3,995
median
Listings seen
6
since Apr 2026
Stabilized units
2
5 in 2007
HPD violations
0
last 12 months
Asking rents

What apartments at 31 East 21st Street ask

Median asking rent by size across 6 listings seen between April 2026 and August 2026. From public rental listings Leaseswap tracks on StreetEasy, NYBits, LeaseBreak and others. Asking rents, not signed leases.

  • Studio$3,595$3,5951 listing
  • 1 bedroom$3,995$3,795 to $4,4005 listings
Rent stabilization

Rent-stabilized units on record

Unit counts from NYC tax records, via JustFix's Who Owns What.

Latest

2

In 2007

5

Units

18

This means the building has rent-stabilized units, not that every apartment in it is stabilized or carries a legal rent. Always check a unit's status and rent history with DHCR before signing a lease.

Building conditions

No HPD violations in the last 12 months

Housing code violations issued by NYC HPD, by class. Data as of August 17, 2026.

Class C

0

Immediately hazardous

Class B

0

Hazardous

Class A

0

Non-hazardous

1 open violation · 5 complaints in 12 months · 0 eviction filings in 12 months

Ownership

Who owns the building

From NYC HPD registration records, via JustFix's Who Owns What. Company names only.

Owner
United Hay LLC
Portfolio
25 buildings · 634 units
Last sale
December 31, 2012
Features

What listings here mention

Building features that most listings at this address report.

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Nearby

More buildings in Flatiron

7 East 14th Street12 East 22nd Street96 Fifth Avenue254 Park Avenue South270 Park Avenue South131 East 23rd Street
FAQs

Common questions

Is 31 East 21st Street rent-stabilized?
NYC tax records list 2 rent-stabilized units at 31 East 21st Street (5 in 2007). That means the building has rent-stabilized units, not that every apartment in it is stabilized. Confirm a specific unit's status and rent history with DHCR before signing a lease.
How much is rent at 31 East 21st Street?
Across 6 public rental listings Leaseswap tracks on StreetEasy, NYBits, LeaseBreak and others between April 2026 and August 2026, median asking rents were $3,595 for a studio, $3,995 for a one-bedroom. These are asking rents from listings, not signed leases.
Who owns 31 East 21st Street?
NYC HPD registration records link 31 East 21st Street to United Hay LLC, which is associated with 25 buildings and 634 units in NYC. Ownership data comes from JustFix's Who Owns What.
How many HPD violations does 31 East 21st Street have?
HPD issued 0 violations at 31 East 21st Street in the last 12 months, and 1 is currently open. Data as of August 17, 2026.