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Exceptional investment & development opportunity on nearly 0.5-acre flat lot! Potential for a 4-lot subdivision Survey Completed, preliminary plans available to retain the existing home and build 3 additional detached townhomes (Like an SFH). Charming split-level home offering 4 beds & 2 baths. Main level features living/dining, kitchen & breakfast nook overlooking the spacious backyard. Upstairs has 3 bedrooms & 1 bath. Lower level includes separate entrance, den, full bath, laundry, storage & flexible space for office/wine cellar/4th bedroom great for multi-gen living or rental income. Endless possibilities: add an ADU, build a pool, park RV/boat, expand or develop. Backyard includes mature fruit trees avocado, grapefruit, Santa Rosa plum, Meyer lemon, orange & bay leaf. Prime location in Castro Valley close to downtown, shops, restaurants & BART. Rare opportunity with strong upside!
Listing agent: Swetha Poreddy DRE #02018707 swetha.poreddy@gmail.com, Listing office: Alliance Bay Realty
MLS data updated 10/25/2026, 10:18:35 AM PT
Source: CRMLS, MLS #: ML82036418
Belmont insights
Compare recorded home prices, same-type ZIP sales and mortgage rates.
Apr 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
$1,800,000Closed sale · Apr 8, 2026ZIP 94546 · Apr 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.