31 W 21ST Street #9 FL
MLS® #RLS10066275
Listing by The Corcoran Group
4
Bedrooms
3
Baths
4,776
Sq. Ft.
1907
Year Built
Quick Summary
Property Highlights
- Exposure: East,North,South,West facing
- Style: Prewar architecture
- Character: Pre-war building (1907)
Property Details
Description
Ultimate residential luxury in glamorous 5,000 square foot converted industrial loft with high ceilings and gigantic rooms. Bring your architect to make this downtown loft your own trophy residence or just a weekend power pied-a-terre with immense entertaining space. As an international investment this codo has great upside. Priced at only $1,653 per square foot this hip-home of palatial proportions offers all the glamorous elements of new construction at a fraction of the cost. Centrally located in Flatirons Historic District, the loft has 360 degrees open views towering over Manhattans most venerable nineteenth century landmarks. Imagine entering your own private key elevator landing. From the gracious entry the 52-foot wide expanse which is simply breathtaking. With full Empire State Building and unimpeded City views. This massive space occupies the entire 52x92 foot floor plate with 29 gigantic windows providing open views south, north, east and west.
Presently configured as a 3 bedroom, 3 bath home with huge open living and gracious meandering foyers, this IMMENSE live/work home features 11.5 foot high ceilings, and was recently renovated with high-end appliances, custom Chefs open kitchen, temperature controlled wine cellar, central A/C, huge in-unit laundry and utility rooms. The Master Suite features a wood-burning fireplace, gigantic bay windows and spa-like bath with steam shower and claw-foot soaking tub, as well as walk-in closets. Enjoy as is with the current configuration celebrating huge spacious rooms, or design to meet your lifestyle and add additional bedrooms, baths, formal dining, library and/or office options as desired.
Apartment Features: East exposure, North exposure, South exposure, West exposure, Wood-burning fireplace, Full city view, Full skyline view, Prewar detail, Beamed ceiling, Floors - hardwood, Floors - parquet, Floors - herringbone, Light - excellent, Windows - oversized, Windows - new, Modern kitchen, Renovated bathroom, Marble bath, Storage space, Walk in closets, Great closet space, Washer/dryer, Dishwasher, Security system, Wheelchair accessible Building Features: Video security, Cable TV ready, High speed internet
Features & Amenities
Interior Features
Building Information
Financial Details
About Flatiron
View All Flatiron ListingsThe Flatiron District is a vibrant intersection of history, technology, and luxury living. Named after the iconic Flatiron Building, the neighborhood is centered around Madison Square Park and is a hub for the city's 'Silicon Alley.' The real estate market is famous for its grand cast-iron loft buildings with high ceilings and expansive floor plans, alongside ultra-luxury glass towers that offer modern amenities and central Manhattan convenience.
Flatiron Live Market Data
View NeighborhoodActive Listings
119
Median Asking Price
$2.29M
Median $/Sqft
$1,684
Avg Days on Market
N/A
New This Week
5
Price Reduced
30%
Sold (30 Days)
10
Median Sale Price
$2.80M
Live data from RLS at REBNY • Updated 3/27/26, 7:36 AM EST
Similar Listings in Flatiron
View All
Active
4 W 21st Street #3-AD
Condop • RLS #RLS20070160
Active
17 E 16th Street #12 A&B
Co-op • RLS #RLS20034776
Active
20 E 17TH Street #7
Condo • RLS #RLS20076214
Active
32 W 18TH Street #4A
Condo • RLS #RLS20078695
Active
142 5th Avenue #2
Co-op • RLS #RLS20052872
Active
170 Fifth Avenue #PH
Condo • RLS #RLS11020594
Location
31 W 21ST Street #9 FL, Flatiron, New York County • Near 5 AVENUE and AVENUE OF THE AMERICAS
Floor Plans
Listing Data
RLS® at REBNY (Real Estate Board of New York) via Trestle API. Updated in real-time.
Market Data
RLS® at REBNY (Real Estate Board of New York). Live data updated in real-time.
Map & Location
OpenStreetMap contributors via Leaflet. Geocoding via Nominatim.
All data is provided for informational purposes only and should be independently verified. See our Data Sources Policy for more information.
Listing Courtesy of The Corcoran Group - Alex Ionescu
Listing Contact: (212) 355-3550
Listing information for certain New York City properties provided courtesy of the Real Estate Board of New York's Residential Listing Service (the "RLS"). The information contained in this listing has not been verified by the RLS and should be verified by the consumer. The listing information provided here is for the consumer's personal, non-commercial use. Retransmission, redistribution or copying of this listing information is strictly prohibited except in connection with a consumer's consideration of the purchase and/or sale of an individual property. This listing information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2026 The Real Estate Board of New York, Inc., all rights reserved. This advertisement does not suggest that the broker has a listing in this property or properties or that any property is currently available.
Broker Commission Disclosure: Broker commissions are not set by law and are fully negotiable.
Buyer Notice: Planning to work with a buyer's broker? A Buyer Representation Agreement is required before your broker can show you properties, per REBNY/UCBA guidelines (effective 2025). You may attend open houses independently without one.
RLS Data display by Keller Williams NYC. Data last updated on 3/27/2026 at 11:36 AM UTC