Kohn Pedersen Fox

One Madison Avenue’s Concrete Core Begins Ascent in Flatiron District, Manhattan

Construction is set to begin on the new floors at One Madison Avenue, a 27-story office tower expansion in Manhattan’s Flatiron District. Designed by Kohn Pedersen Fox for SL Green, the project involves the gut renovation of the existing eight-story building and structural addition above its roof level, bringing the structure up to 1.4 million square feet of Class A office space. The National Pension Service of Korea and Hines are also part of the development team and acquired $1.25 billion in construction financing for the property, which occupies a full block bound by East 23rd and 24th Streets and Madison Avenue and Park Avenue South.

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Macquarie Group Inks 222,000-Square-Foot Lease at 660 Fifth Avenue in Midtown Manhattan

Macquarie Group, a global financial services company, is the latest to join an expanding roster of new commercial tenants at 660 Fifth Avenue in Midtown Manhattan. As the tower’s anchoring tenant, the firm will occupy 221,764 square feet, spread across six floors, in addition to having a private lobby entrance on both the first and second floors, 30,000 square feet of private outdoor space, and top of building signage.

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660 Fifth Avenue’s Re-Cladding Nears Completion in Midtown, Manhattan

Curtain wall installation is nearing the parapet of 660 Fifth Avenue, a 39-story commercial tower undergoing modernization in Midtown. Designed by Kohn Pedersen Fox and developed by Brookfield Properties, the project involves interior renovations and the full re-cladding of the 64-year-old structure, which will yield 1.25 million square feet of office space and is expected to achieve LEED Gold certification. Turner Construction Company is the general contractor for the property, which is located along Fifth Avenue between West 52nd and 53rd Streets and was formerly addressed as 666 Fifth Avenue.

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One Madison Avenue’s Vertical Expansion Set to Begin in Flatiron District, Manhattan

A construction crane is now in position and ready for vertical progress on One Madison Avenue, a 27-story office tower expansion in Manhattan’s Flatiron District. Designed by Kohn Pedersen Fox and developed by SL Green, the project involves the gut renovation of an existing eight-story building and structural addition above its roof level, bringing the structure up to 1.4 million square feet of Class A office space. The National Pension Service of Korea and Hines are also part of the development team and recently acquired $1.25 billion in construction financing for the property, which occupies a full block bound by East 23rd and 24th Streets and Madison Avenue and Park Avenue South. The project team is aiming for both WELL and LEED Gold certification.


IBM Confirmed as Anchor Tenant for One Madison Avenue in Flatiron District, Manhattan

IBM will consolidate its New York City offices and relocate to One Madison Avenue, a commercial office tower renovation and expansion currently underway in the Flatiron District. Designed by Kohn Pedersen Fox and developed by SL Green Realty Corp, the project involves the construction of a 530,000-square-foot addition atop the original eight-story building, for a total of 1.4 million square feet of Class A office space.

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