175 Fifth Avenue (The Flatiron Building)
175 Fifth Avenue, New York, NY 10010
- Year built
- 1902
The Flatiron Building is the highest-yield Manhattan adaptive-reuse story of 2026 — Daniel Burnham's 1902 Beaux-Arts skyscraper currently undergoing residential condominium conversion. The structural identity rests on three features.
First, the Burnham / Beaux-Arts architectural pedigree — "one of NYC's most iconic Beaux-Arts skyscrapers" with NYC Landmark (1966) and National Historic Landmark (1989) designations. Second, the William Sofield interior design — "draws inspiration from materials uncovered during the restoration — historic railings, original ironwork, and marble mosaics — while integrating modern luxury finishes." Third, the tapering site geometry — produces "dramatically elongated great rooms, angled sightlines, and a spatial experience that simply cannot be replicated in a conventional tower."
Recent transactional context: Floor 21 (full-floor) in contract at $58.5 million (Real Deal, April 1, 2026). As of early 2026, "nine of its 38 apartments into contract" per public reporting.
Recent sales
- Pricing $10.95M (3-bed) to $50M (priciest listed 5-bed)
- Floor 21 (full-floor) in contract at $58.5 million (The Real Deal, April 1, 2026)
- Nine of 38 apartments in contract as of early 2026
- South-facing 4-bed at $16M
- North-facing 4-bed at $18.9M
What to know if you’re buying
The Daniel Burnham architectural pedigree is real institutional context. NYC Landmark (1966) + National Historic Landmark (1989).
The William Sofield interior design produces premium institutional register.
The tapering site geometry produces structurally distinct unit configurations.
The 60-foot lap pool, cold plunge, sauna, and sports simulator anchor the wellness amenity infrastructure.
The $58.5M Floor 21 contract is the largest recent comp.
The 38-unit configuration with two residences per floor (north / south wedge) is structurally distinguishing.
The Brodsky / Sorgente / GFP sponsor consortium is real institutional context.
Comparable buildings
- One Madison (23 East 22nd Street) — CetraRuddy 2013; immediate Flatiron trophy peer
- The Whitman (21 East 26th Street) — Mitchell 2013; nearby NoMad peer
- 15 Union Square West — Kellum / Chen 2008; nearby Union Square peer
- 34 Gramercy Park East — DaCunha 1883; nearby Gramercy trophy peer
- 50 Gramercy Park North — Lyons / Schrager 2004; nearby Gramercy trophy peer
The Roebling Team at The Flatiron Building
Corey Cohen · The Roebling Team at Compass 646.939.7375 · c.cohen@compass.com
Sources: The Real Deal, April 1, 2026 ($58.5M Floor 21 contract); The Real Deal, March 30, 2026 (Flatiron Building conversion); 6sqft "First look inside the new Flatiron Building condos"; 6sqft "Flatiron Building condos will have enormous great rooms"; Propmodo; CityRealty building 187971; NYC Landmarks Preservation Commission individual landmark designation (1966) and National Historic Landmark designation (1989); NYC Department of Finance recorded transfers.