A 10-room Upper West Side penthouse — located in a building with a star-studded past — is now asking $8.25 million, down from its original $9.6 million ask following a broker swap.

Tina Fey holds court at 300 West End Ave., where she has combined two large units. (In 2016, Fey and husband Jeff Richmond paid $9.51 million — well over its $7.5 million asking price — for a four-bedroom apartment directly above their own.)

The building is also where Lena Horne once lived and where singer/songwriter, actor and activist Harry Belafonte lived for decades.

A private elevator landing opens to the penthouse’s central gallery. There’s a living room, dining room and library filled with light, and a Christopher Peacock-designed chef’s kitchen.

The original five-bedroom layout is currently configured as a three bedroom, with another bedroom used as a dressing room and the fifth for a home office.

The unit boasts 10-foot ceilings, two fireplaces, built-ins and herringbone wood floors.

The listing brokers are Douglas Elliman’s Matthew George and Michael Moran.