31 East 21st Street, Manhattan
technical data · neighborhood and transit
Quick answers
- Who owns 31 East 21st Street?
- UNITED FLATIRON LLC is the owner of record, per NYC Department of Finance (BBL 1008500024).
- How much did 31 East 21st Street last sell for?
- $2,769,455 on 2013-01-01, per the deed recorded in NYC ACRIS.
- What is the assessed value of 31 East 21st Street?
- $1,996,650, set by the NYC Department of Finance.
- Does 31 East 21st Street have open housing violations?
- Yes. NYC HPD lists 1 open violation.
- What is the 2026 conforming loan limit in New York County?
- $1,209,750 for a single-unit home, per FHFA. Larger loans are jumbo loans.
- Is radon a problem here?
- EPA radon zone 2, moderate potential.
- What natural disasters is 31 East 21st Street at risk for?
- FEMA's National Risk Index rates the area relatively low overall.
Property records
Owner of record
United Flatiron LlcTax assessment
$1,996,650 · class D6
- DeedJan 1, 2013$2,769,455
Grantor (seller): Jam Realty Nyc Llc · Grantee (buyer): United Flatiron Llc
Recorded document scan - Correction deedJan 1, 2013
Grantor (seller): Jam Realty Co., Jam Realty Nyc Llc · Grantee (buyer): United Flatiron Llc
Recorded document scan - DeedDec 17, 1986
Grantor (seller): First Manhattan Rltyasc · Grantee (buyer): Jam Realty Co.
Sourced directly from official city and county records. BBL 1008500024
NYC records
Pre-war elevator buildingTenant and buyer signals
Rent stabilization
Likely stabilized
Built 1851 with 18 homes, the profile NYC rent stabilization covers. Ask for the apartment's rent history from NYS HCR.
Elevator
Elevator building
City building class D6, 5 floors.
Hurricane zone
Outside evacuation zones
NYC Emergency Management does not place this spot in zones 1 to 6.
Alcohol licenses
4 licenses within 200 ft
Giorgios Of Gramercy INC (restaurant) · Cosme Ny LLC (restaurant) · Tappo INC (restaurant)
Sources: NYC PLUTO, NYC Emergency Management, NY State Liquor Authority, OpenStreetMap. Rent status is an estimate from the building profile.
Tax lot 1008500024
- Built
- 1851
- Floors
- 5
- Homes
- 18
- Zoning
- M1-5M
- Floor area
- 8,300 sq ft
- Lot
- 2,419 sq ft
- Tax assessment
- $2.0M
Nearest subway
- 23 St-Baruch College6Accessible3 min530 ft
- 23 StRW3 min660 ft
- 14 St-Union SqNQRWL456Accessible7 min1,530 ft
Click a station for walking directions.
Housing violations (HPD)
1 open
0 immediately hazardous · 1 hazardous · 0 non-hazardous
Heat and hot water, 2 years
8 complaints
Most recent Mar 2026
Bedbug filing, 2025
0 of 18 units reported infested.
Residential evictions, 5 years
No marshal evictions executed.
311 calls within 260 ft, 12 months
132
- Illegal Parking · 18
- Noise · 13
- For Hire Vehicle Complaint · 11
Safety and environment
FEMA natural hazard risk
Relatively Low
No single natural hazard ranks high for this area.
FEMA National Risk Index, census tract
Superfund site
2.4 mi
Grand Street Mercury (Deleted NPL Site). Check groundwater and vapor reports on the EPA site page.
EPA National Priorities List
Leaking fuel tanks
4 within 1,650 ft
Nearest: Icon Parking Garage, 47 East 21st St (100 ft), open. 1 still open. Ask whether groundwater or soil vapor testing was done.
EPA UST Finder, leaking underground storage tank releases
Brownfield site
2,500 ft
325 East 25th Street. Former industrial land in EPA's cleanup and reuse program.
EPA ACRES Brownfields
Toxic release facility
1,050 ft
Endurart Inc and 1 more within a mile. Reports chemical releases to air, water or land to EPA each year.
EPA Toxics Release Inventory
Historic listing nearby
400 ft
Theodore Roosevelt Birthplace National Historic Site and 1 more listings close by. Exterior changes can need preservation review; listed buildings can qualify for rehabilitation tax credits.
National Park Service, National Register
Radon potential
Moderate
Average indoor levels of 2 to 4 pCi/L. EPA still suggests testing ground-floor and basement units.
EPA and USGS Geologic Radon Potential Map
Nearest public schools
450 ft
BALLET TECH/NYC PUBLIC SCHOOL FOR DANCE (450 ft), SCHOOL OF THE FUTURE HIGH SCHOOL (850 ft), BARUCH COLLEGE CAMPUS HIGH SCHOOL (1,100 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
6.6 mi
LaGuardia (LGA). Aircraft may be audible under approach paths.
FAA large-hub airports
Conforming loan limit 2026
$1,209,750
New York County. Mortgages up to this amount qualify for Fannie Mae and Freddie Mac pricing. Above it, the loan is a jumbo with stricter terms.
FHFA Conforming Loan Limit Values, one-unit
Property tax after you buy
$7,000 a year
About $583 a month at New York's 1.40% median effective rate.
In New York City, small homes are capped at 6% a year (20% over five years), and the cap stays with the property through a sale.
Rough estimate. U.S. Census ACS median effective rates. Your county assessor sets the final bill.
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Who lives and works in Manhattan
Finance, media and law, with the country's densest job market
Manhattan is built around work. Most households rent, most trips happen on foot or on the subway, and the day starts early in Midtown and downtown. Apartments are small by national standards and the premium goes to the commute, not the square footage.
- $99,880
- median household income
- 20.5%
- residents aged 25 to 34
- 24%
- households that own their home
What pays the bills
- Finance and insurance
- Media and publishing
- Law and consulting
- Healthcare
- Tech offices
Who anchors the economy
JPMorgan Chase · Goldman Sachs · NYU · Mount Sinai · Google NYC
The market is shaped around
- Young professionals
- Dual-income couples
- People who want to live without a car
More on East 21st Street
All addressesViewing recommendations
What's worth checking in person before deciding.
- Test water pressure and temperature at the tap, in the bathroom and kitchen, for at least a minute.
- Ask specifically where you'd park: is there paid city parking, who currently holds it, what the permit costs, and how long the waitlist is.
- Knock on a neighboring door and ask two things: what bothers them most often, and what work is planned for the building.
- Ask for the latest maintenance bill from a winter month, not a summer one: that's where the real cost of living there shows up.
- Look at the stairwell (cleanliness, smell) and the association's notice board: unpaid dues, conflicts, recent decisions.
- Schedule a viewing on a weekday too, between 6:00 and 7:30 PM, the window when the building is busiest: neighbors, parking, elevator.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.
The year built, height regime, structure, and elevator for this address are being indexed right now, city by city. Save the page and check back: it fills in over time. If you live here, you can fill it in yourself in a minute by leaving a review.