Two phases on Carolina Street in Potrero Hill, combined here into one entry because they are the same development. The original sales domain has been taken over and now serves unrelated foreign language content, so there is no site to link. Nothing about the developer or architect could be verified.
300-310 Carolina St · Potrero Hill, San Francisco
What has actually sold here
2 closed sales in Onyx in the last 24 months, the most recent in October 2025. 18 in total since 2016. That is too few to publish a median from, so I have not.
Closed San Francisco MLS sales through 2026-09-10, compiled by me from my own market database. Medians, not averages. HOA dues are those reported at the time of each sale and may have moved since. The neighborhood comparison covers condominiums only.
Onyx in San Francisco. The faint dots are the other new developments in this directory.
What I would ask about OnyxAsk which phase a given unit sits in, because the two phases were built at different times and may not share the same reserve position.
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Building details compiled from the building's own site, the developer's
or architect's project pages, the general contractor, and San Francisco Planning records,
last reviewed August 2026. Anything unverifiable was left out. Deemed reliable but not
guaranteed. Not legal, tax, or financial advice.
Thinking about Onyx?
Tell me what you're weighing. I'll register you with the building, come to the first showing, and give you a clear, honest read.
