3642 Lorena Avenue, Castro Valley, CA 94546

• 3 beds |
• 2 baths |
• 2,350 sqft

Property Description

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 Status:

Active

Date Added:

February 26, 2026

Data Last Updated:

March 4, 2026 at 7:06AM

Listing Office:

Alliance Bay Realty : 510-742-6600

Listing Agent:

Swetha Poreddy : 408-306-7764

MLS ID:

ML82036418

Interior

• General: Dining AreaFamily Room
• Appliances: Dishwasher
• Basement: Crawl Space
• Flooring: ConcreteLaminate
• A/C: Ceiling Fan(s)
• Heating: Forced Air
• Fireplace: Wood BurningFireplaceFireplaces: 1

Exterior

• Pool: None

Construction

• General: 2

Location

• School District: Castro Valley (510) 537-3000
• County: Alameda

Lot

• Zoning: RMX084A0095029