Radiance, Bosa's 2008 building on the Mission Bay waterfront beside OpenAI: one closing this year, a corner two-bedroom listed at $2,000,000 and sold at $2,060,000 in 12 days, up 14.4 percent on its 2015 price

Radiance sold one condominium this year, in 12 days, at the highest per-foot figure in the building since 2020. One unit closed at 330 Mission Bay Boulevard North between January 1 and October 15, 2026, on $2,060,000 of volume; nothing closed in 2025, and two units closed in 2024 at a median of $1,107,500. The price per square foot is $1,272, against $1,046 in 2024, $1,008 across two sales in 2023, $1,089 across three in 2022, $1,093 across six in 2021, $1,466 across two in 2020, the building's high, when a $2,350,000 sale closed, $1,328 across four in 2015, $611 across the 17 sales of 2009, the most in any year, and $839 across the 11 of 2008.

#802, a 1,620-square-foot corner two-bedroom with views of the Bay, the Bay Bridge, the skyline and Twin Peaks, was listed on May 1 at $2,000,000, went pending on May 13 and closed at $2,060,000 on June 4, 12 days from listing to contract; its dues run $1,340 a month; it was bought in April 2015 for $1,800,000 against a $1,698,000 ask, up 14.4 percent, and it is the year's one paired resale; the listing named OpenAI, Uber, Chase Center, Bayfront Park, UCSF and Oracle Park as the neighbors (Redfin). #509, 974 square feet with a balcony over the park, is listed at $1,225,000 with dues of $1,244 (Rover IDX). The building's #702 sold new in October 2009 at $925,000, about $575 a foot, against a $1,150,000 ask, and failed to sell at $1,995,000 and $1,790,000 in 2015 (SocketSite, Jan 2015).

Radiance at Mission Bay is Nat Bosa's first Mission Bay building, 99 condominiums on nine floors with a temporary certificate of occupancy in July 2008; 55 had sold and closed by August 2008, and the 318-unit second phase at 325 China Basin was suspended that September and under construction again by July 2010; the building record on this site lists 58 units, which is the count of unit addresses on Mission Bay Boulevard North alone (SocketSite, Aug 2008; SocketSite; PCAD; SF Highrises).

2026 so far, against the same window in 2025

Closings at Radiance 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 Radiance since June 2008, by calendar year. 2026 runs through October 15, 2026. Days on market is available for MLS-listed sales from 2020 onward.

The building's highest median price per square foot in any year with five or more closings was $1,093 in 2021 (6 closings). 2026 year to date stands at $1,272.

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.

Paired resales

Units that closed in 2026 and had a prior recorded sale in the same building. The change is gross, before any improvements, fees or carrying costs.

1 of these resold above the prior price, 0 below.

Mission Bay Boulevard North, at Bayfront Park

Bayfront Park, 5.4 acres between Chase Center and the water at 16th and Terry Francois, built on Port land with steel reclaimed from the old Bay Bridge, is across the street, and Bosa's Madrone stands beside the building at 420 to 480 Mission Bay Boulevard North (SF.gov; SF Highrises). The Mission Bay ferry terminal just south of the park, funded with a $55 million EPA grant and $4 million from UCSF, is slated to be built in 2026 for service in 2027, and Mayor Lurie cut the ribbon on the Terry Francois Boulevard bike and pedestrian project from China Basin Park to Mission Rock Street (Funcheap; SF.gov).

OpenAI's 315,000 square feet at 550 Terry Francois and 282,000 at 1800 Owens are the adjacent blocks, and Coinbase's 150,000 and Nvidia's 45,000 at Mission Rock are across China Basin; the office figures in the paragraphs below describe SoMa (Bisnow; CompStak).

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