Union 91.
Every unit here is open to an offer — listed or not.
Make an offer on any unit →See every sale in this building — freeA unit lists, a sale records, the HOA figures change. No account, and one click to stop.

See condos before they reach the listing sites.
Coming-soon listings, owners’ private numbers and the Investor Exchange, with the unit, price and photos of each. Nothing in Union 91 is off market today; a free account shows you everything that is.
The building
A visual survey of Union 91.








About Union 91
Union 91 is a 16-unit condominium building in Downtown Campbell, Silicon Valley, built in 1978. 1 recorded sale in the 12 months to Oct 27, 2026, too few for a median.
Union 91, by the numbers
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Owner tenure patterns, price trajectories, sale-to-list ratios and off-market activity signals — available to members. Free to sign up.
Unlock enhanced data →Every recorded sale at Union 91
Union 91 at 185 Union Ave has 151 recorded sales since 1998. In the 12 months to Oct 27, 2026, 1 sold, too few for a median.
| Date | Unit | Price | Sq ft | $/sq ft |
|---|---|---|---|---|
| Feb 24, 2026 | 40 | $432,000 | — | — |
| Oct 27, 2025 | 75 | $500,000 | 704 | $710 |
| Mar 28, 2025 | 5 | $520,000 | — | — |
| Nov 13, 2024 | 34 | $470,000 | — | — |
| Sep 18, 2024 | 45 | $495,000 | — | — |
| Sep 11, 2024 | 83 | $520,000 | 704 | $739 |
| Jul 10, 2024 | 70 | $495,000 | 704 | $703 |
| May 29, 2024 | 12 | $494,000 | — | — |
| May 15, 2024 | 44 | $519,000 | — | — |
| Oct 9, 2023 | 36 | $555,000 | — | — |
| Sep 12, 2023 | 87 | $510,000 | 704 | $724 |
| Jun 25, 2023 | 36 | $505,000 | — | — |
| Dec 27, 2022 | 65 | $527,000 | — | — |
| Oct 8, 2021 | 30 | $445,000 | — | — |
| Aug 12, 2021 | 35 | $425,000 | — | — |
The 15 most recent of 151 recorded sales, from county records and the MLS, one row per sale. Transfers under $100,000 are left out. BMR marks a below-market-rate sale: it is listed here and left out of every figure on this site.
More on Union 91
- Union 91 on the Campbell Real Estate Market → every home and recorded sale in the community
How Union 91 compares
Trailing-12-month performance against the half-mile surroundings and the broader market, plus quarter-by-quarter $/ft² history.
Mortgage calculator
Back-of-envelope monthly cost for a purchase at Union 91. Defaults use the building’s recent median price and conservative market assumptions.
Numbers add up?
Make this offer · $950,000 →Buy at or sell at Union 91
You don’t need a unit to be listed to make a move. Submit an offer on any unit in the building, or name a price your own unit would sell for.
Buy — submit an offer
Name the unit, the price, and your terms. We route it to the owner through standard channels and track the response in your dashboard.
Make an offer →Sell — name your price
Set a Make-Me-Move number, not a listing. Keep living in your unit. We notify you only when a buyer’s offer matches your number.
Set your price →All offers require a free account. Already have one? Sign in.
Get the inside view on Union 91
Three ways to learn more — no account required. Tell us where to send it and it’s on its way.
Watch the market review
A short video walkthrough of recent sales in Union 91 and the buildings around it — what’s moving, and what it means for value.
HOA & CC&R cheat sheet
A plain-English summary of Union 91’s rules, fees, rental policy, and the fine print that actually matters — delivered within 24 hours.
Talk it through with Tim
Ready to go deeper? Grab a time directly — or leave your email and Tim will reach out.