A $65 million, third-floor co-op at the J.E.R. Carpenter-designed 845 Fifth Ave., with five bedrooms and eight bathrooms, has just hit the market.

Residents in the 11-story limestone building have included Paul Allen, the co-founder of Microsoft and Daniel Nir, a hedge funder.

Top leather-daddy architect Peter Marino recently renovated the home to give it a classic yet “subtly edgy” feel, according to the listing.

The apartment includes three entertaining rooms with 12-foot ceilings and woodburning fireplaces.

The bedrooms have en suite marble baths, and the corner master suite has “his and hers bookended-matched marble baths and an amazing closet and dressing room,” notes the listing.

The unit includes a white marble kitchen, a custom pantry and “cheery” breakfast room.

There’s also a laundry room, a maid’s room with a bath and a playroom. The listing broker is Sotheby’s Serena Boardman.