One of the biggest owners of entertainment-related real estate in Los Angeles wants to expand a historic production property that's been home to well-known TV shows and movies despite a filming slowdown because of a writers' strike.

Hudson Pacific Properties, a real estate investment trust based in L.A., plans to build roughly 130,000 square feet of entertainment-related space at 6550 W. Romaine St. and 6619 W. Barton Ave. in Hollywood at its Sunset Las Palmas Studios on an unspecified timeline, according to documents filed with the city of Los Angeles.

"The proposed Sunset Las Palmas Studio Enhancement Plan represents our long-term strategy to expand and enhance the Sunset Studios platform with state-of-the-art studios and production facilities that meet the needs of leading content creators," a Hudson Pacific spokesperson told CoStar News in an email. "We are committed to supporting the preservation and growth of the entertainment industry in Los Angeles and we look forward to working closely with the city and community stakeholders as the project moves forward."

Sunset Las Palmas has seen leasing success in recent years for Hudson Pacific. In 2022, Hudson Pacific wrapped up leasing an entire 130,000-square-foot office at Sunset Las Palmas Studios to post-production firm Company 3. The building, called Harlow, was built around 2021.

Hudson Pacific bought the 369,000-square-foot Sunset Las Palmas media and entertainment campus for $200 million in May 2017, according to a statement. The campus, located at 1040 N. Las Palmas Ave., had roughly 13 stages, production offices and support space on 15 acres.

Sunset Las Palmas' original production-related space was built in 1919 by a former associate of Charlie Chaplin. TV shows filmed at the property over the years include "I Love Lucy," "The Addams Family" and "Jeopardy." Movies filmed at the property include "Hell’s Angels," "When Harry Met Sally" and "The Player."

Demand for soundstage and other entertainment-related space is expected to bounce back after a writers' strike gets resolved. The strike started May 2 and production has largely ceased since.

That said, demand for soundstages was falling before the strike in Los Angeles, which has the most square footage of soundstage space in the U.S., Canada and U.K., according to FilmLA, a not-for-profit firm based in Los Angeles that tracks this data.

Shoot days in the first quarter were down 24% year over year to 7,476, according to FilmLA. Demand fell due to entertainment firms catching up on pandemic-interrupted production, streamers cutting back and producers rushing to wrap up before the writers' strike.

Hudson Pacific owns roughly 90 soundstages and around 1,600 production vehicles, according to its website.