It’s not an “Animal House.”

Actor Peter Riegert — known for his role as Donald “Boon” Schoenstein in that iconic 1978 fraternity film and as a pickle monger in “Crossing Delancey” — is about to list his Upper West Side penthouse for $1.99 million.

The home, which he’s owned for decades, is located at the landmarked 235 West End Ave. Riegert bought the home in the 1990s for $335,000.

The late architect Diane Lewis did the renovations.

The prewar “junior four” condo is a one-bedroom with home office space and a private outdoor space.

Building amenities include a children’s playroom, a gym, bike storage and a common roof deck.

The listing brokers are Jane Beal and Dean DeCarlo, of Corcoran.