360 Tenth, the six-unit 2001 live-work building between Folsom and Harrison: one closing this year, a 1,326-square-foot multi-level unit at $860,000, $649 a foot, $10,000 under its 2017 price

360 Tenth sold one of its six units this year, its first sale since 2022, at a shade under its 2017 price. One condominium closed between January 1 and October 15, 2026, on $860,000 of volume; nothing closed in 2023 through 2025, one unit closed in 2022 at $905,000 and one in 2015 at $950,000. The price per square foot is $649, against $675 in 2022 and $699 in 2015; the record on this site holds three closings in all.

#1, a 1,326-square-foot multi-level live-work unit with a bedroom and a den, two baths, a private entrance, a balcony and a gas fireplace, was listed on April 29 at $869,000, went contingent on May 19 and closed at $860,000, 33 days from listing to contract on the MLS feed, which dates the closing September 10 where the listing record gives June 5; its dues run $756 a month; the listing pitched the 101 and 280 on-ramps for Peninsula commuters; the listing record shows it sold at $870,000 in October 2017, $495,000 in 2011 and $720,000 in 2006, pairings the site's record does not hold (Redfin; MLSListings).

The building dates from 2001, three stories and six units on a 2,724-square-foot lot on Tenth between Folsom and Harrison (Redfin; Redfin street index).

2026 so far, against the same window in 2025

Closings at 360 10th St between January 1 and October 15, 2026, set against January 1 to October 15, 2025. Days on market is median days from listing to contract on MLS-listed sales; "under 15 days" counts how many of those went into contract inside two weeks.

Year by year

Every recorded closing at 360 10th St since June 2005, by calendar year. 2026 runs through October 15, 2026. Days on market is available for MLS-listed sales from 2020 onward.

No year in the building's record holds five or more closings. 2026 year to date stands at $649 a square foot.

By bedroom count, 2025 against 2026

Every closing in 2026

All 1 closings through October 15, 2026, highest price first. Square footage and days on market are as recorded on the MLS; county-recorded transfers that never listed show no days.

Tenth Street, between Folsom and Harrison

Costco is a block away, per the listing (Redfin). Across the street at 347 Tenth, HC Design and Build published renderings in April 2022 for a five-story, nine-unit building replacing a duplex, and the northeast corner of Tenth and Harrison, a gas station from 1949 and the 10th Street Car Wash since 1969, was proposed for studios in 2016 (SF YIMBY; SocketSite). Folsom Street between Seventh and Eighth, two blocks east, became an Entertainment Zone on May 16, 2025, allowing to-go drinks at outdoor events (CBS Bay Area).

No AI office of any size is within walking distance; the office figures in the paragraphs below describe the eastern end of SoMa, a mile and a half east, and the nearest large AI lease on this side of the city is Thinking Machines Lab's full building at 2300 Harrison, a mile south (SF Standard).

The timetable that every South of Market building now sits inside is the public-offering calendar. Anthropic filed a confidential draft registration with the SEC on June 1, 2026, a week after a funding round that set its valuation at $965 billion (TechCrunch). As of this week the Standard reports the Anthropic listing has been pushed to November, after the midterms, that OpenAI's has moved to 2027, and that Anthropic is weighing a lockup longer than the usual six months (SF Standard). The same piece carries a Redfin estimate that current and former OpenAI and Anthropic employees could in theory buy close to a third of the metro area's homes with their proceeds, and the counter-argument from UC Berkeley's Enrico Moretti and the Bay Area Council's Jeff Bellisario that the money is concentrated in fewer hands than past booms and that these firms create fewer jobs per dollar because so much goes to data centers rather than headcount. The record in this report ends on October 15. None of it reflects a single share that has been sold.

Two citywide facts frame every building figure here. First, the office recovery is lopsided: CBRE put Q3 2026 vacancy at 27.7 percent citywide, down 6.6 points in a year, but Avison Young splits that into roughly 12 percent for Class A and north of 31 percent for Class B, and a Presidio Bay executive told Bisnow the headline number is misleading for that reason (Bisnow). Second, the condo market is still digging out: the Chronicle's May analysis found that only eight Bay Area ZIP codes showed inflation-adjusted condo gains over the year, all of them in San Francisco, and that Noe Valley's typical condo remained close to $400,000 below its 2019 level in real terms (SF Chronicle).

How this was counted

Two records feed this review. The MLS layer is one row per listing and carries days on market and square footage. The county layer reaches back further and catches transfers that never listed, but records the same closing once per data source, so the two were merged on unit, date and price and each closing kept once. Below-market-rate units and transfers under $300,000 are listed but excluded from every median. "Same window" means January 1 to October 15 of each year. Nothing here is a valuation of any unit, and nothing here is advice.

Tim McMullen · CA DRE #02016832
[email protected] · (415) 691-9272