Recently Listed Open House 7/5 1pm - 4pm
4231 Somerset Ave
Castro Valley, CA, 94546 $ 999,950
Bedrooms3 Baths1.0 Sq 1,285 Monthly Estimate*
$ 6,314
for $999,950 with 3 bedrooms and 1 full bath. This 1,285 square foot home was built in 1949 on a lot size of 0.12.
Charming, beautifully remodeled 3-bedroom, 1-bath home offering 1,035 square feet of comfortable living space, plus a detached 250-square-foot cottage (ADU). The rental income from the cottage provides an excellent opportunity to offset your mortgage, making it easier to own more home in this desirable, quiet court location. Tasteful updates are found throughout the property. Gorgeous hardwood floors flow through most of the home, complemented by tile flooring in the kitchen, bathroom, and laundry room, with carpet in select areas. The updated kitchen features Corian countertops, attractive wood cabinetry, a 4-burner gas range, built-in microwave, and abundant cabinet space. A spacious laundry room offers even more storage with extensive built-in cabinetry. The inviting living room showcases a custom tray ceiling, elegant crown molding, and energy-efficient LED lighting, creating a warm and welcoming atmosphere. Step outside to a patio deck overlooking the private, fenced backyard with lush lawn—perfect for relaxing or entertaining. A matching storage shed provides additional space for tools, gardening equipment, or seasonal items. A standout feature of this property is the detached, updated studio ADU, offering exceptional flexibility and income potential. Currently rented for $1,750 per month plus utilities, the cottage is separately fenced for added privacy and is ideal as a rental, guest house, private home office, or space for extended family. Move-in ready and thoughtfully updated, this exceptional property combines comfort, style, and outstanding investment potential. Don't miss this rare opportunity!
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Open House
7/5/2026 1:00 PM - 4:00 PM
4231 Somerset Ave Castro Valley, CA
* Some states or local ordinances may prohibit Open Houses at this time, please confirm with your Weichert agent or local rep to confirm
FeaturesGeneralLiving Area 1285
Sewer Public Sewer
Heating Forced Air
Cooling Central Air
Roof Composition Shingles
Appliances Dishwasher Gas Range Plumbed For Ice Maker Microwave Free-Standing Range Refrigerator Dryer Washer
Garage Spaces 0
Architectural Style Ranch
Pool Features None
Construction Materials Stucco
Year Built 1949
Electric No Solar
Stories Count 1
Levels One Story
Property Subtype Detached
Accessibility None
County Alameda
New Construction false
Property Type Residential
HOA false
Energy Efficient None
Subdivision Name Castro Valley
Garage Y/N false
Total Rooms 5
Full Baths 1
Status Active
Directions Redwood Rd. to Somerset..
City Castro Valley
MLS Area Listing
Lot Size Square Feet 5292
Property Condition Existing
Virtual Tour https://4231SomersetAve.com/idx
Standard Status Active
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InteriorInterior Amenities Counter - Solid Surface Updated Kitchen
Flooring Hardwood Tile Carpet
Total Fireplaces 0
Fireplace Features None
Air Conditioning Y/N true
Heating Y/N true
Fireplace Y/N false
Laundry Features Dryer Gas Dryer Hookup Laundry Room Washer
Total Bedrooms 3
Kitchen Features Counter - Solid Surface Dishwasher Eat-in Kitchen Disposal Gas Range/Cooktop Ice Maker Hookup Microwave Range/Oven Free Standing Refrigerator Updated Kitchen
Total Baths 1
1/2 Baths 0
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ExteriorExterior Amenities Back Yard Front Yard
Fencing Fenced
Parking Features Carport Converted Garage
Lot Features 2 Houses / 1 Lot Premium Lot Front Yard Landscaped
Water Source Public
Lot Size Area 5292
Building Area Total 1285
Lot Size Acres 0.12
ADU Y/N true
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* Excluded FeaturesList ByExp Realty Of California, IncBroker
Affordability Calculator
- Monthly Principal & Interest
- $6,314
- Monthly Property Taxes
- --
- Monthly Home Insurance
- --
Default based on a 30-year fixed rate of 6.49% 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.
Learn more about how to save NearbySingle family listings in Castro Valley, CA
Average List Price $1,316,903
Percent of Sale Price 32%
About Castro Valley, CA 63,507 Population
6% Since 2002
$ 88,568 Median Income
42.76 Median Age
32% Households with Children
Trends Information provided by ATTOM Data Solutions.
4827338 Elementary School
0 Middle School
Unknown High School High School
Pricing History| Date | Price | Price Change | Description |
|---|
| 6/26/2026 | $999,950 | | Listed Price |