370 Union Avenue.
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 370 Union Avenue is off market today; a free account shows you everything that is.
About 370 Union Avenue
370 Union Avenue is a condominium building in Campbell, Silicon Valley. 0 recorded sales in the 12 months to Oct 26, 2026.
370 Union Avenue, by the numbers
Sign in to see the full dossier
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 370 Union Avenue
370 Union Avenue at 370-388 Union Ave has 23 recorded sales since 1998. None sold in the 12 months to Oct 26, 2026.
| Date | Unit | Price | Sq ft | $/sq ft |
|---|---|---|---|---|
| Dec 13, 2024 | 388 Union Ave #D | $950,000 | — | — |
| Dec 6, 2023 | 388 Union Ave #C | $930,000 | — | — |
| Jun 4, 2021 | 370 Union Ave #A | $710,000 | — | — |
| Jan 3, 2020 | 388 Union Ave #D | $750,000 | — | — |
| Sep 11, 2018 | 372 Union Ave #C | $780,000 | — | — |
| Oct 16, 2016 | 376 Union Ave #A | $560,000 | — | — |
| Apr 8, 2016 | 372 Union Ave #A | $650,000 | — | — |
| Oct 29, 2015 | 386 Union Ave #D | $700,000 | — | — |
| Jan 20, 2015 | 372 Union Ave #A | $514,500 | — | — |
| Jan 25, 2013 | 376 Union Ave #B | $408,000 | — | — |
| Jul 27, 2012 | 386 Union Ave #D | $377,000 | — | — |
| Jan 29, 2010 | 372 Union Ave #D | $329,000 | — | — |
| Nov 11, 2008 | 382 Union Ave #D | $431,000 | — | — |
| Dec 1, 2006 | 372 Union Ave #A | $480,000 | — | — |
| May 20, 2005 | 370 Union Ave #D | $449,000 | — | — |
The 15 most recent of 23 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.
How 370 Union Avenue 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 370 Union Avenue. 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 370 Union Avenue
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 370 Union Avenue
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 370 Union Avenue and the buildings around it — what’s moving, and what it means for value.
HOA & CC&R cheat sheet
A plain-English summary of 370 Union Avenue’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.