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Rare infill residential development opportunity in Castro Valley's highly desirable Parsons Estates neighborhood. ±1.58 acre site with previously approved tentative map approval for four premium single family residential lots. Proposed lot sizes ranging from approximately 14,000-18,000 sq ft support a differentiated, larger home product in a supply constrained submarket with strong end user demand. The project offers the opportunity to develop 3,000+ sq ft homes with potential ADU/JADU configurations (buyer to verify), enhancing flexibility and overall project economics. The property may also present additional long term SB9 optionality, offering alternative development pathways subject to buyer verification and County approval. Nearby larger homes and strong local demand support an attractive end product strategy. Strategically located with convenient access to I-580, I-680, BART, Silicon Valley, Oakland, and San Francisco, positioning the site well for commuter oriented buyers seeking premium suburban housing.
Property Type(s):
Lot/Land/Acreage
| Last Updated | 11/12/2026 | Tract | PARSONS ESTATES |
|---|---|---|---|
| Year Built | 0 | County | Alameda |
Additional Details
| LOT | 1.5751 acre(s) |
|---|---|
| LOT DIMENSIONS | 68612 |
| SUBDIVISION | PARSONS ESTATES |
Location
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Listed with Compass
The information being provided by Conejo Simi Moorpark Association of REALTORS® (“CSMAR”) is for the visitor's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties visitor may be interested in purchasing. Any information relating to a property referenced on this web site comes from the Internet Data Exchange (“IDX”) program of CSMAR. This web site may reference real estate listing(s) held by a brokerage firm other than the broker and/or agent who owns this web site. Any information relating to a property, regardless of source, including but not limited to square footages and lot sizes, is deemed reliable but not guaranteed and should be personally verified through personal inspection by and/or with the appropriate professionals. The data contained herein is copyrighted by CSMAR and is protected by all applicable copyright laws. Any dissemination of this information is in violation of copyright laws and is strictly prohibited.
This IDX solution is (c) Diverse Solutions 2026.
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