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Former Los Angeles mansion tests tenant appetite for unique office space

Rare property hits market as companies prioritize comfort
The property at 4526 Wilshire has served as the backdrop for films, television and advertising campaigns. (CoStar)
The property at 4526 Wilshire has served as the backdrop for films, television and advertising campaigns. (CoStar)
CoStar News
April 10, 2026 | 11:50 P.M.

Behind gates and greenery on one of the busiest streets in Los Angeles, a low-slung compound breaks from the corridor’s typical glass-and-concrete office buildings.

The property at 4526 Wilshire Boulevard — a historic compound most recently used by a popular musician’s apparel brand — is now being marketed for lease and will soon be offered for sale for the first time in nearly four decades, according to brokerage firm Zacuto Group, which represents the private owners of the estate.

A grand staircase greets entrants. (CoStar)
A grand staircase greets entrants. (CoStar)

The offering lands at a moment when tenants and investors across Los Angeles and the broader United States are rethinking what office space should look like. High-end properties with perks ranging from speakeasies to spas are outperforming commodity space when it comes to new deals, as vacancy remains elevated and leasing decisions grow more selective.

“It’s less about square footage and more about creating a distinct environment that you can’t replicate in a traditional office building,” Michael Spiegel of Zacuto Group told CoStar News.

Built in 1923 as the Gilbert House, the 6,440-square-foot Mediterranean Revival estate has outlasted Wilshire’s evolution from mansion-lined boulevard to commercial corridor. The property has shifted from a private residence to commercial use while preserving its residential scale and architectural character.

The property’s previous tenant was a fashion business associated with a musician that prized the property’s residential vibe and privacy. (CoStar)
The property’s previous tenant was a fashion business associated with a musician that prized the property’s residential vibe and privacy. (CoStar)

That uniqueness cuts against a challenging backdrop: Los Angeles office vacancy has climbed to roughly 16.1%, with negative absorption stretching years, while the smaller Park Mile area where the property sits is hovering near 24.4% vacancy with limited rent growth.

Estate meets office

What surprises most visitors is the shift in atmosphere when they exit the busy Wilshire corridor and enter the property that “feels quiet, residential and almost transportive” despite sitting on one of Los Angeles’ busiest corridors, Spiegel said.

Historical details like built-in shelving and a grand fireplace distinguish this work space. (CoStar)
Historical details like built-in shelving and a grand fireplace distinguish this work space. (CoStar)

The three-building layout set on a 12,241-square-foot lot contains a main house suited for executive offices or client-facing functions, a secondary structure for team operations and a studio building adaptable for content production, wellness or creative work.

That flexibility is part of what has allowed the property to endure while neighboring parcels were redeveloped as Wilshire steadily transitioned from residential enclave to commercial spine over the past century.

Outdoor spaces add a leisure vibe to the campus at the former Gilbert House. (CoStar)
Outdoor spaces add a leisure vibe to the campus at the former Gilbert House. (CoStar)

“It’s extremely unusual,” Spiegel said of a gated compound like this on Wilshire, noting that most similar properties were demolished or redeveloped decades ago.

For a future tenant or buyer, the opportunity is as much about stewardship as it is about occupancy — a chance to control one of the last residential-scale compounds on Wilshire and shape its next chapter as Los Angeles continues to redefine what office space means, Spiegel said.

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