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20556 Forest Avenue is ideally located for commuters, providing seamless access to downtown Castro Valley, nearby freeways, and the BART station. This home boasts modern updates and is ready for you to move in right away. Additionally, it presents a fantastic opportunity to convert the detached two-car garage into extra living space. Imagine creating a home gym, a functional workshop, an inspiring home office, or even a cozy ADU for guests or rental income, significantly enhancing your property's value and versatility. The generous driveway that connects to the low-maintenance backyard can easily fit 3 to 4 cars, making it ideal for hosting lively barbecues or setting up a basketball hoop for some family fun. Enjoy the convenience of local shops and restaurants just a stroll away. With award-winning schools nearby, you’re not just purchasing a house; you’re embracing a vibrant lifestyle full of possibilities. This is truly one of the best deals you’ll find in Castro Valley. Don’t wait—this opportunity won’t last long!
Listing agent: Danny Kang DRE #01975699 danny@danny-kang.com, Listing office: Coldwell Banker Realty
MLS data updated 10/24/2026, 2:28:44 PM PT
Source: CRMLS, MLS #: 41138746
Belmont insights
Compare recorded home prices, same-type ZIP sales and mortgage rates.
Jul 17, 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
$900,000Closed sale · Jul 17, 2026ZIP 94546 · Jul 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.