San Francisco is making it easier to turn empty offices into homes

San Francisco is making it easier to turn empty office buildings into homes, a move aimed at easing the city's housing crunch and reviving its struggling downtown.

Voters approved Proposition C, which offers a tax break for developers to convert up to 5 million square feet of commercial space by 2030, according to a tally of results from last week's election. Mayor London Breed, who championed the proposal, said it will help the city meet a state mandate to create tens of thousands of new homes and to diversify the downtown. 

The measure comes as the tech sector, a key to San Francisco's economy, has scaled back its presence and workforce since the pandemic. Major companies, such as Meta Platforms Inc. and Salesforce Inc., have reduced their real estate footprint, allowing employees to work from home or relocate. San Francisco's commercial vacancy hit a record 36% as of December and it's expected to tick up further this year, according to an analysis by CBRE Group Inc.

Breed said the initiative would help transform the city's downtown from a 9-to-5 business district to an around-the-clock mixed-use neighborhood.

San Francisco Dealt Another Blow As Westfield Walks Away From Downtown Mall Property
A shopper inside the Westfield San Francisco Centre shopping mall on June 13. Photographer: David Paul Morris/Bloomberg
David Paul Morris/Bloomberg

"San Francisco's downtown is undergoing a period of change — and there is a tremendous opportunity to attract investment and excitement in the future of what downtown can be," she said in a statement.

This month's announcement of Macy's Inc.'s plan to close its flagship Union Square store — part of the company's broader national downsizing — marked another significant departure from the city's retail landscape. 

Breed has been a vocal advocate of finding innovative uses of spaces, even suggesting last year that a soccer stadium could replace the downtown Westfield San Francisco Centre mall, after its owners gave up the property.

San Francisco stands out for its potential to convert office buildings to housing, compared with other cities, because of the buildings' shape and size, ceiling height and proximity to public transit, proponents say. 

In a report, the San Francisco Bay Area Planning and Urban Research Association said 40% of the downtown buildings evaluated by architecture and design firm Gensler would be suitable for conversion. In North America as a whole, only 20% of the buildings Gensler assessed scored high for conversion.

However, San Francisco's stringent planning and building codes, along with high construction costs, pose significant hurdles to such projects, rendering many of them financially unfeasible.   

Still, technical challenges abound in converting offices to homes and skeptics argue that the potential is overblown. According to a separate analysis by Moody's Investors Service, conversions to multifamily housing are only viable in 13% of San Francisco offices. 

Further complicating the matter, a report by the offices of the San Francisco controller and economic-analysis unit cautions that increased office-to-residential conversions could lead to job losses and hurt the local economy. The study's 20-year forecast suggests that converting every 100,000 square feet of office space into housing could eliminate 155 jobs and lower the city's GDP by $49 million.

"Most of the job losses would be concentrated in office-using industries, which are major contributors to the city's GDP, while gains would be recorded in construction, government, and local-serving industries," according to the report.

To date, only a handful of office-to-housing conversions have materialized in the city, including a three-story building in the Tenderloin district that was recently transformed into 56 apartment units. One project to transform San Francisco's historic Warfield Building has recently been approved, with construction slated to begin early this year.

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