It’s addition by subtraction on Madison Avenue, where Kohn Pedersen Fox (KPF) is playing real-life Jenga with a 24-story office building between East 46th and 47th streets in Midtown Manhattan.

The 13-story glass-tower addition at One Madison Avenue is a big bet on offices when the commercial-real-estate market looks grim. But the building is almost fully leased, with anchor tenant IBM ...

One Madison Avenue, designed by Kohn Pedersen Fox Associates (KPF) for SL Green Realty and Hines, follows the latter course. The existing 14-story structure, completed in 1958 and composed of a ...

Rendering of KPF-designed 343 Madison Avenue. (Courtesy Kohn Pedersen Fox Associates) Newly released renderings reveal a relatively conservative design, with stacked rectilinear volumes that ...

L&L Holding Co., which is transforming 425 Park Ave. with a well-received Norman Foster redesign, is launching a second, larger East Midtown metamorphosis. By early 2017, gloomy 380 Madison Ave… ...

Clarion Partners' 380 Madison Avenue was built in the 1950s out of brick and sheathed in a facade of opaque blue glass during the '80s. ... L&L, with a design from architectural firm KPF, ...

SL Green Realty’s redevelopment project at One Madison Avenue will include 18 new floors and bring the building’s total rentable square footage to about 1.5 million square feet, according to ...

BXP released first rendering for its proposed 950,000 square-foot tower, designed by Kohn Pedersen Fox, at 343 Madison Ave., between East 44th and 45th streets. Volley Studios.