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Exceptional triplex opportunity in the highly desirable Castro Valley area! Ideally situated at 20240 Anita Avenue, this income-producing property offers a versatile layout, strong rental potential, and a prime central location near shopping, dining, schools, BART, and major commuter routes. The property features three separate units across two buildings. The front building includes two units, while the rear of the property offers a charming detached standalone home, creating privacy and flexibility for tenants or owner-occupants. One unit is currently vacant, presenting an immediate opportunity for additional rental income or personal occupancy. Recent improvements include fresh interior paint , new carpeting in the vacate unit . new deck , Fresh exterior paint . The property has been well maintained and reflects true pride of ownership. Whether you are looking to expand your investment portfolio or live in one unit while generating rental income from the others, this Castro Valley triplex is a rare and attractive opportunity with excellent upside potential.
Listing agent: Tracy Zhou DRE #01896893 tracyzhou26@gmail.com, Listing office: Golden Gate Sotheby's International Realty
MLS data updated 11/1/2026, 1:59:26 AM PT
Source: CRMLS, MLS #: 41135488
Belmont insights
Compare recorded home prices, same-type ZIP sales and mortgage rates.
Jun 25, 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
$1,342,000Closed sale · Jun 25, 2026ZIP 94546 · Jun 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.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.