24 East 21st Street #PH

$6,995,000

For Sale

4,109 ft²

$1,702 per ft²

8 rooms

4 beds

4.5 baths

Condo
Flatiron
Resale

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Open Houses

Sat, Dec 6 (12–3 PM ET), by appt only

Sun, Dec 7 (12–3 PM ET), by appt only

Report listing

Listing by Brown Harris Stevens, Real Estate Principal Office, 1934 Broadway, New York, NY 10023

Listing updated in the last 2 days

Common charges

$3,691/mo

Estimated payment

$51,887/mo

Taxes

$7,885/mo

Tax abatement

No info

About

Seller’s agent

Mike Lubin

Licensed Associate Real Estate Broker

Brown Harris Stevens

Dean Dunbar

Licensed Associate Real Estate Broker

Brown Harris Stevens

description

Located in the heart of the Flatiron district - on 21st Street between Broadway and Park Avenue South - moments from both Madison Square Park and Union Square Park and surrounded by the most esteemed dining in the city, this extraordinary mint condition 4100+ SF Penthouse is a rare combination of space, light, dramatic views, and flawless design.

Policies

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Home features

Dishwasher
Private outdoor space
Terrace
View
City, Skyline

Building amenities

Services and facilities

Doorman
Virtual
Elevator

Wellness and recreation

No info on wellness and recreation

Shared outdoor space

No info on shared outdoor space

About the building

Infinity Flats

24 East 21st Street, New York, NY 10010

Condo building inFlatiron

8 units

9 stories

1935 built

For sale

1 available units for sale

For rent

0 available units for rent

Documents and permits

View documents and permits

Learn more about Infinity Flats

Property history

Price Change: No changes
Days on market: 73 days

Date	Price	Event
9/22/2025	$6,995,000	Listed by Brown Harris Stevens
6/20/2025	$7,500,000	Delisted by Brown Harris Stevens
2/24/2025	$7,500,000	Price decreased by 3%
9/14/2024	$7,750,000	Listed by Brown Harris Stevens
1/23/2024	$7,500,000	No longer available

Explore Flatiron

Transit

Location	Distance
at 23rd St	under 500 feet
at 23rd St	under 500 feet
at 14th St–Union Square	0.21 miles
at 23rd St	0.29 miles
at 23rd Street Station	0.31 miles

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About Flatiron

Rental prices shown are base rent before any fees. Visit listings for cost and fees breakdown.

SalesMedian asking price

4 beds

$4.3M

RentalsMedian asking base rent

4 beds

$11,625

Flatiron is a historic New York City neighborhood that has seen its fair share of change over the years. In the early 1900s, it was a major commercial and residential center. By the middle of the century, things stagnated as businesses and residents left in search of more space and lower rents. In recent years, stores, upscale restaurants, and new developments moved back in, and the neighborhood is seeing a significant resurgence. Fifth Avenue now bustles with some of the best shopping in the city, and restaurants run the gamut from Michelin-rated to Yelp-reviewed food trucks.

Flatiron is busiest at midday and cocktail hour and tends to quiet down a bit at night, although the lights never truly turn off. Proximity to Union Square and multiple subway lines make it an equally easy trip to Midtown or Downtown.

Learn more about Flatiron