Opening page…
Opening page…
Opening home details…
Rare single-story duplex in Antioch's Contra Loma neighborhood! This 3/2 and 2/1 property offers two separate units under one roof, each with a single-level layout and no stairs to manage. Both units have been refreshed in the last three years, so the major updates are already done. Unit A features hardwood floors and fresh paint, both completed in 2023, plus a new dishwasher that makes the kitchen move-in ready. Unit B was updated even more recently: new hardwood floors and fresh paint in 2026, a new stove this year, a new HVAC system in 2024, and a newer refrigerator. With this many recent upgrades, the property offers the kind of low-maintenance ownership that's hard to find in an older duplex at this price point. The 6,936 sq ft lot gives each unit room to breathe, and generous garage space makes parking and storage simple for both households. Both units are rented out. Location is the real draw here. You're minutes from Contra Loma Regional Park and Black Diamond Mines Regional Preserve, with schools, shopping, and dining close by. Easy access to Highway 4 connects you to Concord, Walnut Creek, and the rest of the East Bay, and the Antioch BART station puts San Francisco and Oakland within reach.
Listing agent: Spencer Hsu DRE #02077253 spencer@spencerhsu.com, Listing office: eXp Realty of California Inc
MLS data updated 11/1/2026, 3:02:44 AM PT
Source: CRMLS, MLS #: ML82063970
Belmont insights
Compare recorded home prices, same-type ZIP sales and mortgage rates.
Oct 8, 2026
Prices use the left axis; mortgage rates use the right. Hover, tap, or focus the chart and use the arrow keys. Red SOLD badges mark recorded sales.
This home · nearest recorded event
$650,000Original asking price · Oct 8, 2026ZIP 94509 · Oct 2026
No monthly averageAt least 3 eligible sales in this month are required.30-year fixed mortgage benchmark
No weekly rateNo published rate within 7 days of this date.No recorded sales in this range. Select All available for older records; missing records do not mean the home never sold.
ZIP averages use publicly displayable closed sales from our licensed MLS feed, matched to the same ZIP and exact property type. Months with fewer than 3 sales are omitted; the current month is incomplete. Lines connect available monthly observations across gaps and do not represent measured prices in missing months. These averages are not adjusted for size, condition, or location within the ZIP, and are not an appraisal. Feed coverage may not include every sale. All available shows the available home and ZIP history, with mortgage rates over the same dates.
Mortgage benchmark: Freddie Mac Primary Mortgage Market Survey®. © Freddie Mac. Weekly national 30-year fixed rates, not APRs or a loan quote. Actual terms vary. Methodology changed in November 2022. The chart does not establish that interest-rate changes caused a home’s price changes.
Lines connect recorded asking and sale prices. They are visual guides, not estimates of the home’s value between those dates.
No earlier records were returned by our current sources. This does not mean the home has never sold.
MLS records may be incomplete. Earlier asking prices are not sale prices.