Pop star Taylor Swift appears to have plunked down $18 million for a notorious Tribeca townhouse, according to city property records.

The home at 153 Franklin St. is where disgraced French politician Dominique Strauss-Kahn stayed while he was under house arrest in 2011 for allegedly sexually assaulting and attempting to rape a hotel maid.

The 27-foot-wide townhouse is near 155 Franklin St., where Swift also owns a penthouse duplex that she bought for $19.95 million in 2014.

The sale appears to be an off-market deal, as the home was never listed.

The three-story townhouse comes with a gym, a spa, antique French wide-plank oak floors and a planted terrace with a Japanese paper glass wall, according to a former listing.

It was bought by Euro Tribeca LLC, which is linked to Jesse P. Schaudies, a lawyer who works for Swift’s management firm and who represented her on past real estate purchases. Schaudies could not be reached for comment.