
Castro Valley, California 94546
This Renovated Single-Family Residence is a Prime Investment Opportunity, listed at $799,999—positioned well below the $825,505 Fair Market Value by 3%. This valuation gap provides $25,506 in Instant Equity. Boasting an Excellent Condition Rating, the home features a remodeled kitchen, updated bathroom, and a private patio. The expansive 7,450 sq ft lot offers significant upside for an ADU or expansion. Located near top-rated Castro Valley schools, this turnkey home is perfect for Owner-Occupants seeking a move-in-ready sanctuary or first-time buyers looking to build long-term wealth.
Comparables within 1 miles sold in recently
| Address | Sold Price | Beds | Baths | Sq Ft | $/Sqft | Distance |
|---|---|---|---|---|---|---|
★ 4577 Sargent Avenue Subject | $799,999* List Price | 2 | 1 | 854 | $967 | - |
A 18810 18810 Madison Ave Sold | $873,000 | 2 | 1 | 1,003 | $870 | 0.4 mi |
B 3975 Wilson Ave Sold | $777,000 | 2 | 1 | 778 | $999 | 0.9 mi |
C 3414 Pine St Sold | $844,000 | 3 | 1 | 978 | $863 | 0.9 mi |
D 4835 Kathleen Ave Active | $875,950 List Price | 3 | 1 | 1,028 | $852 | 0.3 mi |
* Subject property listed price vs sold prices of comps.
Property is new construction or fully renovated.
Although built in 1948, the property has undergone an extensive recent renovation within the last 5 years. It features a fully remodeled kitchen with modern cabinetry, stone countertops, and stainless steel appliances, an updated bathroom with contemporary finishes, new flooring throughout, fresh interior/exterior paint, and updated recessed lighting, meeting the criteria for excellent condition.
The property has a large lot size, which is more than 4 times of its living area. lot size in square feet = 7450, living area = 854.
The home features a recently remodeled kitchen and bathroom, new flooring, and fresh interior and exterior paint, offering a turnkey, move-in-ready experience.
The oversized 7,450 sq ft lot provides a rare opportunity for future expansion, the addition of an ADU, or the creation of a custom outdoor retreat.
At approximately 854 sq ft with only one bathroom, the current layout may be restrictive for larger households or those requiring dedicated office space.
Built in 1948, the property may have aging underlying systems that require future maintenance or upgrades despite the recent cosmetic improvements.
Welcome to 4577 Sargent Avenue, a beautifully updated home in the heart of Castro Valley offering comfort, style, and exceptional potential. This charming 2-bedroom, 1-bath residence spans approximately 854 sq ft and sits on an expansive 7,450 sq ft lot, providing a rare opportunity for future expansion or customization (buyer to verify). The home features a recently remodeled kitchen and bathroom with modern finishes, complemented by new flooring and fresh interior and exterior paint throughout. The bright and functional layout creates an inviting living space ideal for both everyday living and entertaining. Step outside to a spacious backyard with endless possibilitiesperfect for adding an ADU, expanding the existing home, or creating your own outdoor retreat (buyer to verify). Conveniently located near shopping, dining, parks, and major commuter routes, and in close proximity to highly regarded Castro Valley schools (buyer to verify). An excellent opportunity for owner-occupants or investors looking for a move-in ready property with long-term upside.
No exterior & parking available.
No sensitive facilities data found.
| Feature | Subject | Average Home | Neighborhood Ranking (50 Listings) |
|---|---|---|---|
| Beds | 2.0 | 3.0 | 12% |
| Baths | 1.0 | 2.0 | 16% |
| Square foot | 854 | 1,518 | 4% |
| Lot Size | 7,450 | 6,431 | 67% |
| Price | $800.0K | $1.08M | 12% |
| Price per sq ft | $937 | $695 | 94% |
| Built year | 1948 | 1953 | 28% |
| HOA | $0 | $0 | 50% |
| Days on market | 7 | 148 | 1% |
Apr 15, 2026
$799,999
Initial Listing
Dec 1, 1976
$43,000
Public Record