Before there was Billionaires’ Row, there was Fifth Avenue Millionaires’ Row. From the turn of the century on up until today, New York’s wealthy have clamored for Fifth Avenue real estate because of its genteel blocks and its front-row vistas of Central Park. Comprised mainly of limestone-faced co-ops, and Gilded Age mansions, the fully-landmarked stretch of the Upper East Side between 59th and 79th streets is often known as the Gold Coast. Staunchly protected, new buildings here are hard to come by. The last major addition to these blocks came in 1999 with the addition of several stories to 838 Fifth Avenue (“"Love Thy Neighbor As Thyself' ”). Now here to disrupt its dormancy is 815 Fifth Avenue: a brand-new condominium venture by Brazilian developer JHSF Participacoes S.A..
Photo and floorplans of former mansion that stood at 815 Fifth Avenue
In this article:
815 Fifth Avenue supplants a 6-floor brownstone mansion that was finished in 1871 and designed by Samuel A. Warner for James Stewart Cushman and wife Verna. According to the sale listing, the building was the oldest on the avenue between 59th and 110th Street. To the dismay of preservationists and some neighbors at 812 and 817 Fifth Avenue, the Landmarks Preservation Commission gave the project its blessing in 2013. Designed by Connecticut-based TP Greer Architects, the building will grow to more than double the height of the previous structure to 15 floors and will be clad in a traditional limestone façade. There will be projecting cornices at the top of 2nd and 14th floors.
Fifth Avenue elevation of 815 Fifth Avenue; Rendering via TP Greer Architects
Inside will hold 7 or 8 duplex apartments designed the Office of Thierry W. Despont, the architects who are handling the grand reimagination of The Woolworth Residences. Per the building’s recently launched teaser site, each residence will have views of the skyline and Central Park, and a timeless design has created a sophisticated environment that is harmonious in every detail, with exceptional privacy.
View from 815 Fifth Avenue; JHSF
As of early April, workers are framing the project’s fourth story and delivery should be expected sometime next year. Pricing has yet to be revealed but given the rarity of Fifth Avenue condos, the homes will surely come at a premium. According to our data, condos in the Upper East Side, west of Park Avenue between 59th and 79th streets have an average ask of $6,495,000 or $2,944 per square foot.
815 Fifth Avenue is now framing its ast floor; CityRealty
Related Articles
Future New York
When home comes with hotel service: Ritz-Carlton brings NYC’s branded residence boom to Brooklyn Heights
Wednesday, September 16, 2026
Future New York
Manhattan Sales: Michael Eisner buys $10M Sherry Netherland co-op; FiDi penthouse with slide nets 144% profit
Monday, September 21, 2026
Future New York
Top Contracts: Mary Cantwell’s former loft in a converted Village stable finds buyer; NYC’s entry-level condo pipeline shrinks 74%
Monday, September 21, 2026
Future New York
Pocket doors and eat-in kitchens make a comeback as sales launch at 175 East 82nd Street
Friday, September 18, 2026
Future New York
The Myles debuts in Chelsea + 10 largest new development homes on the market now
Thursday, September 17, 2026
Future New York
$28.5M SoHo penthouse leads $500M+ Manhattan sales week; Tech titans trade in Hudson Square
Wednesday, September 16, 2026
Future New York
Price Cuts: Sting’s former 15 CPW duplex gets $5M chop; Gold Coast penthouses see deep discounts
Wednesday, September 16, 2026
Future New York
‘Indiana Jones’ penthouse finds buyer as $22.5M Fifth Avenue maisonette tops Manhattan contracts
Tuesday, September 15, 2026
New Developments Editor
Ondel Hylton
Ondel is a lifelong New Yorker and comprehensive assessor of the city's dynamic urban landscape.
6sqft delivers the latest on real estate, architecture, and design, straight from New York City.
