
Castro Valley, California 94546
This Turnkey Hybrid Property is a Strong Value Opportunity, listed at $999,950—positioned well above the $877,678 Fair Market Value by -13%. While priced at a premium, the property features a detached, income-generating ADU and a Condition Rating of 3, offering immediate rental income to offset mortgage costs. With Top-Rated Schools like Castro Valley High (8/10) nearby and a private patio deck, this home balances lifestyle comfort with financial utility. It is an ideal acquisition for Buy-and-Hold Investors or Owner-Occupants seeking a move-in ready home with rental potential.
Comparables within 1 miles sold in recently
| Address | Sold Price | Beds | Baths | Sq Ft | $/Sqft | Distance |
|---|---|---|---|---|---|---|
★ 4231 Somerset Ave Subject | $999,950* List Price | 0 | 0 | 891 | $985 | - |
A 19635 Forest Ave Sold | $745,000 | 2 | 1 | 790 | $943 | 0.1 mi |
B 21146 Elm St Sold | $738,000 | 2 | 1 | 825 | $895 | 0.7 mi |
C 18810 18810 Madison Ave Sold | $873,000 | 2 | 1 | 1,003 | $870 | 0.6 mi |
D 2672 2672 Watson St Sold | $800,000 | 3 | 2 | 987 | $811 | 0.9 mi |
E 2226 Vegas Ave Sold | $768,000 | 3 | 1 | 871 | $882 | 1.0 mi |
F 4835 Kathleen Ave Sold | $930,000 | 3 | 1 | 1,028 | $905 | 0.5 mi |
G 3975 Wilson Ave Sold | $777,000 | 2 | 1 | 778 | $999 | 0.5 mi |
H 20024 Leroy Dr Sold | $915,000 | 2 | 2 | 1,081 | $846 | 0.5 mi |
I 4050 Somerset Ave Pending | $799,000 List Price | 2 | 1 | 899 | $889 | 0.1 mi |
* Subject property listed price vs sold prices of comps.
Property is move-in ready.
Although built in 1949, the property has been extensively remodeled and is described as move-in ready. The kitchen features Corian countertops and wood cabinetry, and the home includes updated LED lighting and a detached, updated ADU. The finishes and overall maintenance suggest a renovation within the 5-15 year range.
The property features a detached, updated studio ADU currently rented for $1,750 per month, offering a significant mortgage offset or a private space for multi-generational living.
Located within the boundaries of highly-regarded schools, including Castro Valley High (8/10) and Marshall Elementary (8/10), which drives strong long-term property value.
The home boasts high-end finishes including hardwood floors, custom tray ceilings, LED lighting, and a modernized kitchen with Corian countertops and gas cooking.
At only 891 square feet for a three-bedroom layout, the interior living areas and bedrooms are likely quite small, which may not suit buyers looking for spacious rooms.
The residence contains only one bathroom for three bedrooms, which can be a significant logistical drawback for families and may impact future resale appeal.
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) with laundry. 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-cottage, 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!
No exterior & parking available.
Grades K-5 • 0.4 mi
Grades K-5 • 0.6 mi
Grades 6-8 • 0.5 mi
No sensitive facilities data found.
| Feature | Subject | Average Home |
|---|---|---|
| Beds | 0.0 | 3.0 |
| Baths | 0.0 | 2.0 |
| Square foot | 891 | 1,812 |
| Lot Size | 5,292 | 6,893 |
| Price | $1000.0K | $1.25M |
| Price per sq ft | $1.1K | $710 |
| Built year | 1949 | 1956 |
| HOA | $0 | $273 |
| Days on market | 13 | 35 |
Jul 9, 2026
$999,950
Initial Listing
Nov 23, 2021
$998,000
Public Record
May 13, 2005
$550,000
Public Record
Aug 15, 2003
$400,000
Public Record
Jul 29, 1999
$254,000
Public Record