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4 East 73rd Street Upper East Side New York NY 10021
  1. Home
  2. 4 East 73rd Street
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
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4 East 73rd Street

Upper East Side | NY
Fifth Avenue & Madison Avenue

Schedule a Viewing
New This Week
$ 28,000,000
Building For Sale
Property Type
Active
Status
14
Rooms
8,360/777
ASF/ASM
$ 63,000
Real Estate Taxes [Per Annum]
  • 4 East 73rd Street
  • $ 28,000,000
4 East 73rd Street Upper East Side New York NY 10021

Building Details

4 East 73rd Street Upper East Side New York NY 10021
Single Family
Ownership
Townhouse
Building Type
Voice Intercom
Service Level
1387/67
Block/Lot
22'x60'
Building Size
22'x102'
Lot Size
R8-LH1
Zoning
1875
Year Built
5/1
Floors/Apts

Photos

4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021

Floor Plan

4 East 73rd Street Upper East Side New York NY 10021
4 East 73rd Street Upper East Side New York NY 10021

Description

A masterpiece of scale, design, and craftsmanship, this extraordinary 22.5-foot-wide mansion is perfectly situated on one of the Upper East Side's most desirable blocks, just off Fifth Avenue and Central Park. Designed by renowned architect Alan Wanzenberg and executed to the highest standards by Steve Mark of SMI Construction Management Inc., the home reflects an impeccable level of detail, marrying timeless elegance with contemporary functionality. The property Is located in a historic landmark district and is protected against vertical expansion. 

Comprising five stories plus a finished basement with approximately 8,360 square feet of interior space, the residence is complemented by 1,526 square feet of private outdoor spaces, including a south-facing 660-square-foot garden with an outdoor fireplace and built-in grill, and an 866-square-foot landscaped roof terrace with views of the iconic Manhattan skyline.

Inside, the home is defined by high ceilings up to 10'8", abundant natural light, and grand proportions. The spectacular entertaining rooms include a 32-foot-long living room overlooking the beautiful tree-lined street, an elegant formal dining room, a richly appointed library with a wood-burning fireplace, and a custom eat-in kitchen opening onto the garden with a second wood-burning fireplace. The kitchen is outfitted with appliances by Sub-Zero, Viking, and Gaggenau, blending everyday function with chef-level performance. There are five oversized bedroom suites, six luxurious full bathrooms, and four powder rooms. In addition, there is a full ensuite staff bedroom on the garden level.

Finishes throughout include solid-core walnut doors and millwork, as well as custom windows by Little Harbor Window, underscoring the residence's level of craftsmanship. A dramatic skylight crowns the top of the home, flooding the grand staircase and interior spaces with natural light, while western side windows further enhance brightness on every floor. All systems have been fully modernized, including an elevator serving the basement to the fifth floor, an eleven-zone central air system, an automatic irrigation system, a Crestron full house system, Lutron lighting and intercom.  

A true Manhattan mansion, 4 East 73rd Street presents a rare opportunity to acquire one of the city's most distinguished private residences. 


A masterpiece of scale, design, and craftsmanship, this extraordinary 22.5-foot-wide mansion is perfectly situated on one of the Upper East Side's most desirable blocks, just off Fifth Avenue and Central Park. Designed by renowned architect Alan Wanzenberg and executed to the highest standards by Steve Mark of SMI Construction Management Inc., the home reflects an impeccable level of detail, marrying timeless elegance with contemporary functionality. The property Is located in a historic landmark district and is protected against vertical expansion. 

Comprising five stories plus a finished basement with approximately 8,360 square feet of interior space, the residence is complemented by 1,526 square feet of private outdoor spaces, including a south-facing 660-square-foot garden with an outdoor fireplace and built-in grill, and an 866-square-foot landscaped roof terrace with views of the iconic Manhattan skyline.

Inside, the home is defined by high ceilings up to 10'8", abundant natural light, and grand proportions. The spectacular entertaining rooms include a 32-foot-long living room overlooking the beautiful tree-lined street, an elegant formal dining room, a richly appointed library with a wood-burning fireplace, and a custom eat-in kitchen opening onto the garden with a second wood-burning fireplace. The kitchen is outfitted with appliances by Sub-Zero, Viking, and Gaggenau, blending everyday function with chef-level performance. There are five oversized bedroom suites, six luxurious full bathrooms, and four powder rooms. In addition, there is a full ensuite staff bedroom on the garden level.

Finishes throughout include solid-core walnut doors and millwork, as well as custom windows by Little Harbor Window, underscoring the residence's level of craftsmanship. A dramatic skylight crowns the top of the home, flooding the grand staircase and interior spaces with natural light, while western side windows further enhance brightness on every floor. All systems have been fully modernized, including an elevator serving the basement to the fifth floor, an eleven-zone central air system, an automatic irrigation system, a Crestron full house system, Lutron lighting and intercom.  

A true Manhattan mansion, 4 East 73rd Street presents a rare opportunity to acquire one of the city's most distinguished private residences. 



Listing Courtesy of Corcoran Group

Features

A/C
Garden
Roof Deck
4 East 73rd Street Upper East Side New York NY 10021

Contact

License Licensed As: Michael Segerman
Michael Segerman

Michael Segerman

License Licensed As: Michael Segerman

Principal

W: 516-297-3337
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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 REBNY Listing Service, Inc. All rights reserved. Additional building data provided by On-Line Residential [OLR].
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.
Listing ID: 20350TH