LOS ANGELES - City engineers removed the red tag from a historic Frank Lloyd Wright-designed hillside home near Griffith Park Tuesday, but concern still lingered about the house's integrity, according to ABC7.

The Ennis-Brown House in Los Feliz was upgraded to a yellow tag, which allows limited access, the station reported. The home had been red-tagged over the weekend when officials noticed a wall behind the house crumbling.

The 1924-vintage, concrete block home is on the National Register of Historic Places and has been seen in a variety of movies, including "Blade Runner," "Black Rain," "The House on Haunted Hill" and "Grand Canyon."

It is owned by the Trust for Preservation of Cultural Heritage.

John Mutlow, a USC architecture professor, told the station that while the rain-soaked hillside is a concern, the sun can be more of a danger to the building.

"If you look at this side versus the other side, the sun is what … actually has the more decaying effect than the rain," Mutlow said. "The rain and sun together are obviously very negative."

The latest damage is a setback to recent restoration efforts at the home. The Los Angeles Times reported that rain and mud have caused about $500,000 to the home.