[3] The Decker Building was designated a New York City landmark in 1988, and was added to the National Register of Historic Places in 2003.

[5] The structure was built in 1892 for the Decker Brothers piano company according to designs by the radical anarchist architect John H. Edelmann, working out of the offices of Alfred Zucker.

Union Square at the time was a rundown neighborhood, but Paul Morrissey had found the loft, in the Decker Building, and Warhol agreed to move there.

While Morrissey was stripping wood at the Factory, a young man named Jed Johnson delivered Western Union telegram in 1968.

However, following the shooting, Johnson installed a Dutch door and built a wall around the elevator, requiring guests to buzz in.