The 78th floor penthouse of the Time Warner Center, which last sold four years ago for $37.5 million, is back on the market for $75 million, Curbed reported.

That’s more than $9,000 per square foot for the 8,300-square-foot condominium.

The final sale price back in 2009 — the apartment had been owned by investor Gerhard Andlinger — was considered a steal, with the property first listed for $65 million. The unit has since been gut renovated by designer Tony Ingrao and includes a double living room, media room, library and master suite with full his-and her bathrooms, according to the listing.

Sotheby’s International Realty duo Brenda Powers and Elizabeth Sample have the listing. [Curbed] – Julie Strickland