11 West 18th Street - Flatiron/Union Square

Apartments
Overview & Photos
Maps
Ratings & Insider Info
Floorplans
Sales Data & Comps
Similar Buildings
All Units

11 West 18th Street

co-op located in Flatiron/Union Square, between Fifth Avenue & Avenue of the Americas

Recent Sales (2) $1,144 Avg. price/ft²
All Units in Building (8)

Apt. 5W

1 bed

1 bath

1,500 ft²

$1,400,000

$933

Nov 15, 2024

Apt. 5E

3 beds

1 bath

1,300 ft²

$1,761,000

$1,355

May 9, 2024

View Full Sales History

Overview of 11 West 18th Street

11 West 18th Street is a pre-war co-op building in downtown Manhattan's Flatiron/Union Square neighborhood finished in 1931. Situated at 11 West 18th Street, between Fifth Avenue and Avenue of the Americas, the building contains 8 units and rises 5 stories. The walk-up building's amenities include: video intercom.

Year Built

1931

Apartments

Floors

Pets: Allowed

Neighborhood

Flatiron/Union Square (Manhattan)

Min Down

20%

8Apartments

View All Past
Sales & Rentals
in Building

Amenities

Walk Up
Resident Storage
Video Intercom

Area Map StreetView

{ "key" : "AIzaSyDquABdSLhathmwfnoTcYwA1BY6coZZyZk", "lat": 40.73909, "lng": -73.99265, "marker": { "icon": "https://img3.cityrealty.com/neo/i/w/amenities/base.png" } }

Maps &
3D Aerial Views

View school info, local attractions, transportation options & more.

Experience amazing 3D aerial maps and fly throughs.

Nearby Subways

at 6th Ave and 16th 0.20 miles

at Broadway 0.23 miles

at Broadway and 16th 0.26 miles

at 8th Ave and 16th 0.49 miles

Sales History

Price/Room (Est)

Why are we displaying the estimated price per room?

For some co-ops, instead of price per square foot, we use an estimate of the number of rooms for each sold apartment to chart price changes over time. This is because many co-op listings do not include square footage information, and this makes it challenging to calculate accurate square-foot averages.

By displaying the price per estimated room count, we are able to provide a more reliable and consistent metric for comparing sales in the building. While we hope that this gives you a clearer sense of price trends in the building, all data should be independently verified. All data provided are only estimates and should not be used to make any purchase or sale decision.

Price/Ft² (Est)

View Full Closing History

Alternate Address

11 West18th Street

520 Fifth Avenue

at the northwest corner of West 43rd Street

Midtown West

Iconic river-to-river views include the Empire State Building and Central Park. Elevated condos with magnificent arched windows, triple exposures, and soaring ceilings | Occupancy 2026.

3 beds starting at $5,950,000

Learn More

RLS IDX Data display by CityRealty.com, LLC. This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2025 The Real Estate Board of New York, Inc., All rights reserved. IDX information is provided exclusively for consumers’ personal, non-commercial use and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and for no listing shall the number of bedrooms listed be considered a legal conclusion.

All closed sales data has been provided by the New York City Department of Finance via the Automated City Register Information System (ACRIS). No warranty or representation is made as to the accuracy of any data provided by ACRIS or any other sources.

CityRealty is committed to ensuring digital accessibility for individuals with disabilities. We are continuously working to improve the accessibility of our web experience for everyone, and we welcome feedback and accommodation requests. If you wish to report an issue or seek an accommodation, please contact us at accessibility@cityrealty.com.

An equal housing opportunity

{"1":[40.775,-73.94,"East Side","_es"],"2":[40.79,-73.99,"West Side","_ws"],"11":[40.76,-73.98,"Midtown","_m"],"3":[40.736,-73.99,"Downtown","_d"],"13":[40.711309,-74.01,"Financial
District\/BPC","_fd"],"4":[40.682676,-73.973007,"Brooklyn","_b"],"12":[40.8444,-73.9376,"Upper Manhattan","_um"],"5":[40.7477089,-73.930411,"LIC \/ Queens","_qns"],"18":[40.8889782,-73.9025,"The Bronx","_bx"]}

This is your member's center

11 West 18th Street

co-op located in Flatiron/Union Square, between Fifth Avenue & Avenue of the Americas

Overview of 11 West 18th Street

Amenities

Maps & 3D Aerial Views

Nearby Subways

Sales History

Why are we displaying the estimated price per room?

Sales Summary

Pricing Comparison of Similar Buildings

Editorial Coverage

Alternate Address

Buy & Sell

Rent

Buildings

Insights

Company

Maps &
3D Aerial Views