The Paul Rudolph townhouse at 23 Beekman Place hit the market in early December, listed at $27.5 million. The property consists of four separate apartments, including the four-level penthouse that Rudolph himself lived in, along with his pet rabbits. But buyer beware: the penthouse, which was renovated in 2006 by Della Valle and Bernheimer, retains many signature Rudolph elements, like the death-defying stairways with no rails. Potential buyers should also consider getting “some new sprinklers and a back-up security system installed,” as Chas Tenembaum, one fictional former tenant of The Royal Tenenbaums fame, noted after failing to escape the house in adequate time after a fire drill. “Four minutes and forty-eight seconds. We’re all dead. Burned to a crisp.”