20378 Stanton Ave Castro Valley, CA $ 1,689,900
20378 Stanton Ave
$ 1,689,900
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20378 Stanton Ave

Castro Valley, CA, 94546
$ 1,689,900
Bedrooms3 Baths2.0 Sq 1,589

Monthly Estimate*

$ 10,543

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Multi-Family Home for sale in Castro Valley, CA

for $1,689,900 with 3 bedrooms and 2 full baths. This 1,589 square foot home was built in 1925 on a lot size of 0.463292.

This unique property features two separate remodeled homes (one with high end finishes) situated on one expansive lot, offering excellent flexibility for multi-generational living, rental income, or future development potential. Both homes enjoy a prime location within walking distance to Castro Valley Boulevard’s shopping, dining, and everyday conveniences. Commuters will appreciate the easy access to major freeways, making travel throughout the Bay Area simple and efficient. The large lot provides abundant outdoor space for gardening, entertaining, or expansion, while also presenting exciting possibilities for investors or builders seeking to maximize value. Whether you’re looking for a live-in one, rent-the-other setup, extended family housing, or a property with long-term upside, this Castro Valley gem checks all the boxes. Don’t miss your chance to own two homes on one lot in a convenient and desirable location with tremendous further development potential! Check with Alameda County to confirm that the lot supports up to 8 condos or townhomes or if you could do a 5 way lot split and build 3 additional detached separate homes. New central heat and A/C in main house. Both houses have new water heaters.

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Multi-Family Active

Price

$ 1,689,900

Bedrooms

3

Full Bath

2

Property Type

Multi-Family

Taxes

$ 0

Style

2HOUSES-1LOT

Lot Size

0.463292

Year Built

1925

Town/City

Castro Valley

County/Region

Alameda

MLS | Web ID

41112461

Features
General
Living Area 1589
Sewer Public Sewer
Heating Forced Air Wall Furnace
Cooling No Air Conditioning
Utilities Natural Gas Connected
Roof Composition Shingles
Appliances Gas Water Heater
Construction Materials Stucco Wood Siding
Year Built 1925
Electric No Solar
Property Subtype 2HOUSES-1LOT
Community Features Other
County Alameda
Property Type Residential Income
HOA N
Energy Efficient Other
Subdivision Name Castro Valley
Garage Y/N No
Status Active
Directions 01491373
City Castro Valley
MLS Area Listing
Lot Size Square Feet 20181
Standard Status Active
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Interior
Interior Amenities Updated Kitchen
Flooring Other
Air Conditioning Y/N 0
Heating Y/N Yes
Window Features Double Pane Windows
Laundry Features Other
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Exterior
Exterior Amenities Back Yard Front Yard
Fencing Fenced
Parking Features Off Street RV/Boat Parking Side Yard Access
Lot Features 2 Houses / 1 Lot Level
Lot Size Area 20181
Building Area Total 1589
Lot Size Acres 0.46
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Internal Only
Street Number 1 20378
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* Excluded Features
List By
Bob Frey

Listing Agent

Re/Max Accord

Broker

bobfreyhomes@gmail.com

Email

Affordability Calculator

$10,543
Per Month
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0%
0%
Monthly Principal & Interest
$10,543
Monthly Property Taxes
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Monthly Home Insurance
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Default based on a 30-year fixed rate of 6.375% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
806588 Elementary School
806593 Middle School
Unknown High School High School
Pricing History
DatePricePrice ChangeDescription
11/11/2025$1,689,900 -5.59% Price Down
9/23/2025$1,789,900 Listed Price

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20378 Stanton Ave, Castro Valley, CA, 94546 is a Multi-Family Home for sale at $1,689,900 with 1,589 sqft and a lot size of 0.463292. 20378 Stanton Ave has 3 bedrooms, 2.0 baths, and was built in 1925. The property's zip code is 94546 which is in Castro Valley, CA