
Castro Valley, California 94546
This Spacious Residential Property represents a High-Potential Investment Opportunity, listed at $1,225,000—positioned well below the $1,272,914 Fair Market Value by 3%. This valuation gap offers $47,914 in Instant Equity. With a Condition Rating of 4, the home requires cosmetic updates, yet features a massive 12,962 sqft lot, a converted bonus space, and proximity to Top-Rated Schools like Castro Valley High. This is an ideal acquisition for Buy-and-Hold Investors or Owner-Occupants seeking to build long-term value through strategic renovation.
Comparables within 1 miles sold in recently
| Address | Sold Price | Beds | Baths | Sq Ft | $/Sqft | Distance |
|---|---|---|---|---|---|---|
★ 18508 Madison Ave Subject | $1,225,000* List Price | 4 | 2 | 2,178 | $584 | - |
A 19554 19554 Alana Rd Sold | $1,490,000 | 4 | 3 | 2,100 | $710 | 0.7 mi |
B 5120 Helton Ct Sold | $1,399,888 | 4 | 3 | 2,121 | $660 | 0.6 mi |
C 18425 18425 Pepper St Sold | $1,025,000 | 4 | 2 | 1,804 | $568 | 0.4 mi |
D 18153 18153 Plymouth Dr Sold | $1,362,000 | 3 | 3 | 2,391 | $570 | 1.0 mi |
E 19609 Fern Way Active | $1,199,000 List Price | 4 | 3 | 1,691 | $709 | 0.8 mi |
* Subject property listed price vs sold prices of comps.
Property is moderate renovation needed.
Built in 1952, this home is well-maintained but significantly dated. The kitchen features older white appliances and painted cabinetry, while the bathrooms show aged tile countertops and fixtures. With original hardwood floors and wood paneling throughout, the property is functional and move-in ready but has not undergone a major renovation in over 20 years, necessitating cosmetic and likely system updates.
The property has a large lot size, which is more than 4 times of its living area. lot size in square feet = 12962, living area = 2178.
The property features a detached garage converted into a bonus room with a deck and a large workshop below, offering exceptional flexibility for a home office, studio, or future ADU potential.
Situated on a nearly 13,000 sqft lot, the property provides a rare amount of outdoor space and privacy in a peaceful neighborhood setting, ideal for gardening and entertaining.
Built in 1952, the home likely requires significant capital investment to modernize original systems and cosmetic finishes to meet contemporary buyer standards.
The combination of an older structure, a large lot, and multiple outbuildings suggests higher-than-average ongoing maintenance and landscaping costs for the owner.
Tucked quietly along a peaceful Castro Valley street, this home is the kind of opportunity buyers are always hoping to find; a property that feels warm and welcoming from the moment you arrive, with room to enjoy today and endless potential for what it could become over time. Inside, original hardwood floors run throughout much of the home, while the comfortable 4-bedroom, 2-bath layout offers a sense of space that feels both functional and inviting. Every room reflects years of thoughtful care, creating a home that feels solid, lived in, and ready for its next chapter. At the heart of the home, an expanded dining room surrounded by walls of windows brings in natural light from every angle. It’s the kind of space that naturally becomes the gathering place of the home; morning coffee overlooking the yard, holiday dinners with family, or slow evenings spent lingering around the table with friends. Step outside and the possibilities continue. The backyard offers multiple spaces to relax, garden, entertain, or simply enjoy the privacy and peaceful setting. Perched above the home, a detached garage has been converted into a bonus space complete with its own deck overlooking the property below. Beneath it, an expansive workshop creates even more flexibility; ideal for storage, hobbies, a home gym, creative studio, or future ADU potential for buyers looking to maximize the property over time. This is the kind of home that sparks ideas the moment you walk through the door. Move right in and enjoy its charm exactly as it is, or slowly transform it into something truly special while building long-term value along the way.
No exterior & parking available.
Grades K-5 • 0.5 mi
Grades K-5 • 0.6 mi
Grades 6-8 • 0.7 mi
No sensitive facilities data found.
| Feature | Subject | Average Home | Neighborhood Ranking (50 Listings) |
|---|---|---|---|
| Beds | 4.0 | 3.0 | 72% |
| Baths | 2.0 | 2.0 | 50% |
| Square foot | 2,178 | 1,685 | 80% |
| Lot Size | 12,962 | 6,652.5 | 94% |
| Price | $1.23M | $1.11M | 61% |
| Price per sq ft | $562 | $696 | 18% |
| Built year | 1952 | 1954 | 44% |
| HOA | $0 | $0 | 50% |
| Days on market | 11 | 100 | 1% |
May 26, 2026
$1,225,000
Initial Listing