A triplex penthouse at the top of 1228 Madison Avenue has been sold.
According to CBSK Ironstate, the partnership of CB Developers, SK Development, and Ironstate which developed the boutique building with architecture by Robert A.M. Stern, the buyer has acquired the duplex penthouse across the 17th and 18th floors and the apartment across the 16th floor to create their own townhouse in the sky.
The developer did not reveal the sale price, but the combined list price for the two residences was $27.85 million.
Sales at 1228 Madison Avenue launched in mid-November and the triplex penthouse went into contract just before hitting the market.
With eight private terraces providing over 1,700 square feet of outdoor space, the Triplex Penthouse offers uninterrupted views of the Midtown skyline, Jacqueline Kennedy Onassis Reservoir, and Central Park. The Grand Living Room on the 16th floor offers panoramic views of Central Park.
The triplex will have a 16th floor great room framed by arched windows and a set-back terrace and a full-floor master bedroom suite with two private terraces, Juliet balconies, and a dressing room.

“The Triplex Penthouse sale at 1228 Madison Avenue is a testament to the desirability of a prime Upper East Side location. We are seeing buyers express desire for smaller buildings with full-floor residences that offer ample outdoor and indoor living space. 1228 Madison Avenue pushes those amenities a step further with careful attention to detail and iconic style delivered by Robert A.M. Stern Architects and Kelly Behun Studio,” said Scott Shnay of SK Development.
The remaining apartments in the 18-story building start at $7.95 million.