Commercial

Rendering of One Madison Avenue Expansion. Designed by Kohn Pedersen Fox

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.




1841 Broadway Rises Quickly on Manhattan’s Upper West Side

Construction is rising on 1841 Broadway, a 25-story residential building on Manhattan’s Upper West Side. Designed by INC Architecture & Design with SLCE Architects as the architect of record and developed by Global Holdings Management Group, the 281-foot-tall structure will yield 180,813 square feet with 173 market rate and affordable housing units as well as 11,741 square feet of retail space on the first two levels. Pavarini McGovern, LLC is the general contractor and DeSimone Consulting Engineers is the façade consultant for the property, which is located at the corner of Broadway and West 60th Street, just north of Columbus Circle and the southwest corner of Central Park.

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Rendering of One Madison Avenue Expansion. Designed by Kohn Pedersen Fox

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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