BUILDING SPECS
– Opened May 2024 – Lot Area: 77,577 square feet – 28 stories – Height: 504 feet – 72.7% Leased as of May 2025 – Bound by 23rd Street, Madison Avenue, 24th Street, and Park Avenue
– 1.4 million rentable square feet – 22 high-speed destination dispatch elevators – LEED v4 Gold (Achieved) – WELL v2 Gold (Pending) – WELL Health-Safety Rating (Pending)
– OWNER / DEVELOPER: SL Green Realty Corp
– MEP ENGINEER:
DEVELOPMENT AND DESIGN TEAMS
Jaros, Baum & Bolles
– ARCHITECT:
– PROJECT MANAGER: Hines
Kohn Pederson Fox
– STRUCTURAL ENGINEER: Severud Associates Consulting Engineers
– GENERAL CONTRACTOR: Tishman Construction
– DESIGNED BY
– GLASS TOWER
FUN FACTS
Napoleon LeBrun & Sons
covers 530,000 SF
– ORIGINAL HEIGHT 14 stories tall when constructed in 1955
– ORIGINAL HEADQUARTERS of Metropolitan Life Insurance Company
– GLASS FACADE built on top of 1950s base of the original building
– 2024 COSTAR IMPACT AWARD: Redevelopment of the Year
AWARDS
FOR MORE INFORMATION, VISIT ONEMADISON.COM OR CONNECT WITH US THROUGH SOCIAL MEDIA.
@onemadisonavenue
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