An allegedly tipsy trespasser downed tequila, then hopped a fence at the National Counterterrorism Center in Virginia — mistaking the fortress for a hotel, according to new court documents.

Jatinder Singh was busted around 5 a.m. March 14 trying to book a room at the McLean complex after climbing a security fence, a federal affidavit said.

“Defendant responded that he was there to rent a room,” the court docs say.

Singh, who was “noticeably unsteady on his feet and exhibited slurred speech,” later ‘fessed up to downing tequila that night and said he tried to retreat to the anti-terrorism mecca “seeking a meal and a place to stay,” a CIA officer wrote in the affidavit.

Singh, who lives in Pottstown, Pa., was charged with trespassing and released from federal custody the same day. His next court date is May 27.

He admitted to The Post that he’d been drinking and hopped the fence to the federal property — but didn’t realize where he was.

“I didn’t know that was federal property,” he said Thursday. “I was just looking for help. I just see the building with the lights.”