Flatiron Building Opens as 36-Unit Luxury Condo Development After 124 Years as Office Space

New York's Flatiron Building, one of the city's most recognizable architectural landmarks, has opened its doors as a residential address for the first time in its 124-year history. The Brodsky Organization, in partnership with Sorgente Group and GFP Real Estate, has converted the roughly 200,000-square-foot Beaux-Arts tower at 175 Fifth Avenue into 36 condominium residences, marking one of the most prominent office-to-residential conversions in Manhattan's recent history.

The building, completed in 1902 and designed by architect Daniel Burnham as the Fuller Building, stands at the intersection of Fifth Avenue, Broadway, and East 23rd Street in the Flatiron District. Originally the headquarters of the Fuller Company and later home to publishers, toy and clothing firms, and ground-floor restaurants, the structure had never been used for residential purposes until now.

Unit Mix, Pricing, and Absorption

The conversion originally contemplated 38 condominium residences; the building is now being marketed and sold on the basis of 36 units following the combination of certain residences. The project also includes 38 storage units and three commercial storefronts at the base of the building.

Residences range from approximately 3,000 square feet to about 7,400 square feet, with the building's distinctive triangular geometry producing irregular floor plans and expansive window bays. The typical configuration places two units per floor — one north-facing and one south-facing — with two full-floor residences on the top floors.

Three-bedroom units start at $14.85 million. Five-bedroom apartments are priced above $53.5 million, with a top-floor penthouse asking $58.5 million reported to be in contract. The total projected sellout across all units is approximately $380.9 million, implying an average of roughly $1,900 per square foot across the building's total area. Of 22 publicly listed units, four remained unsold ahead of the building's opening, reflecting absorption of approximately 82 percent of publicly marketed inventory.

Restoration and Interior Design

The conversion required an extensive restoration of the building's limestone and terracotta façade, carried out under the supervision of the New York City Landmarks Preservation Commission. More than 1,000 window frames were replaced, thousands of decorative terracotta elements were individually reproduced by a specialized laboratory in California, and the monumental cornice at the top of the building was restored.

Interiors were redesigned by Studio Sofield, led by William Sofield. The design approach retains historic elements uncovered during the restoration — including original railings, wrought iron details, and marble floors — reinterpreted within a contemporary framework. Views from the residences encompass the Empire State Building, Madison Square Park, and lower Manhattan.

A lap pool and resort-style common areas are included in the amenity package, with amenity delivery targeted for early 2027.

Retail Programming and Ground-Floor Activation

The building's three ground-floor retail units include a space programmed for Bar Pisellino Flatiron, a new venue by James Beard Award-winning chefs Rita Sodi and Jody Williams. The bar is expected to open to the public in 2027 and will also serve as a social hub for building residents.

Ownership and Transaction Background

The Brodsky Organization, Sorgente Group, and GFP Real Estate assembled control of the building following a series of auctions. A second auction in spring 2023 produced a winning bid of approximately $161 million from the existing ownership consortium. In October 2023, The Brodsky Organization acquired a controlling stake and announced the condo conversion plan in partnership with GFP Real Estate and Sorgente Group.

The Flatiron conversion is part of a broader pattern of office-to-residential repositioning activity in Manhattan, where structurally distinctive older office buildings with floor plates unsuited to modern commercial tenants have become candidates for residential reuse. The Flatiron Building's triangular geometry, landmark status, and global name recognition position it at the upper end of that trend.

Sources

The Brodsky Organization — News