18127 Madison Ave
Castro Valley, CA 94546 • 9 Bed • 6 Bath • 4,930 sq.ft.

Property summary

Unique Opportunity to own two spacious homes plus an attached In-Law Unit on nearly a one acre lot in one of Castro Valley’s most coveted neighborhoods. Discover a truly unique property tucked away on a private road on a generous .98-acre lot. This exceptional estate is perfect for fabulous living, multigenerational living, producing income, flexible work-from-home setups and other opportunities. Gorgeous front home has 5 bedrooms with just over 3,000 sq ft of light-filled living space and solar panels. Spacious kitchen featuring granite countertops. Expansive patio area ideal for outdoor entertaining. Attached ADU has its own seperate entrance and fenced in yard. Parking pad that can accommodate RV, boat, and multiple vehicles.The back home has 4 bedrooms, 2 bathrooms, dining room, living room ,laundry room and approximately 1850 sq. ft. of living space. The home has so much to offer. Surrounded by mature fruit trees-tangerine, lemon, pomegranate, and pomelo. Enjoy serene privacy behind gated access, while still being just minutes from top-rated schools ,Castro Village Shopping Center ,CV Marketplace & CV BART station. Easy access to freeway .This property offers incredible flexibility, natural beauty, and an unbeatable location. Schedule your private showing today!

Days on market: 7

Listing updated: June 17, 2025 - 12:53:06

Property details

Property ID
41100873
Size
4930 sq.ft.
Home Type
Residential
Year Built
1945
Property Size
0.9837 acre
Garage
0
Levels
1
Spa
No
Patio
Deck, Patio
Basement
No
View
No
Pool
In Ground

Listed by: Valentina Hauso DRE #02008369 925-934-2900, Keller Williams Realty - Contra Costa

Source: Contra Costa, MLS#: CCBE-CCKELW Originating MLS: CRMLS

Interior information

Rooms
Kitchen
Bathrooms
6
Kitchen
N/A
Cooling
N/A
Heating
Gravity
Flooring
Laminate, Stone, Tile, Wood
Laundry
N/A
$2,875,000
Property price
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Working hours: Monday to Friday 9:00am - 6:00pm (PST)

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The multiple listing data appearing on this website, or contained in reports produced therefrom, is owned and copyrighted by California Regional Multiple Listing Service, Inc. ("CRMLS") and is protected by all applicable copyright laws. Information provided is for viewer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties the viewer may be interested in purchasing. All listing data, including but not limited to square footage and lot size is believed to be accurate, but the listing Agent, listing Broker and CRMLS and its affiliates do not warrant or guarantee such accuracy. The viewer should independently verify the listed data prior to making any decisions based on such information by personal inspection and/or contacting a real estate professional. Based on information from California Regional Multiple Listing Service, Inc. as of 2025-06-28 06:39:58 PST and /or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.

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