4003 Berdina Rd is a 1,196 square foot house on a 7,560 square foot lot with 2 bedrooms and 1 bathroom. - it last sold on October 24, 1990 for $160,000. Based on Redfin's Castro Valley data, we estimate the home's value is $807,764.
Single-familyProperty Type
1940Year Built
7,560 sq ftLot Size
$675Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$807,764
$648K since sold in October 1990$10K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 8.1% lower than the average sale price ($879K) of 5 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
R1
Single-Family Residence Districts
Single-family residence districts, hereinafter designated as R-1 districts, are established to provide for and protect established neighborhoods of one-family dwellings, and to provide space in suitable locations for additional development of this kind, together with appropriate community facilities and allowance for restricted interim cultivation of the soil compatible with such low-density residential development.
Permitted uses
Include but are not limited to:
Housing-Single unit
Agriculture-Cropland
Agriculture-Grove / orchard
Property details
Interior
Room Information
# of Rooms: 6
Exterior
Exterior Information
Building Style Type: Rectangular Design
Construction Type: Wood
Building Construction Quality: Average
Property Information
Living Sq. Ft: 1,196
Building Sq. Ft: 1,196
# of Units: 1
# of Stories: 1
Legal Description: TRACT 542 LOT 2
Lot Information
# of Buildings: 1
Land Sq. Ft: 7,560
Legal Lot Number: 2
Municipality Name: CASTRO VALLEY UNINCORP
Acres: 0.1736
County Use Description: SINGLE FAMILY RESIDENTIAL HOME
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 1,196
Stories: 1.0
Lot Size: 7,560 square feet
Style: Single Family Residential
Year Built: 1940
Year Renovated: 1940
County: Alameda County
APN: 084C075800702
Home facts updated by county records on Sep 17, 2026
Around this home
Schools
Marshall Elementary School
Public K-5 • Assigned • 0.4mi
9/10
Creekside Middle School
Public 6-8 • Assigned • 0.8mi
10/10
Castro Valley High School
Public 9-12 • Assigned • 0.3mi
9/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
Castro Valley remains a highly competitive market. On average, homes are selling for 103.7% of their asking price, with nearly 60% of properties closing above list price.
Castro Valley's fall market offers great buyer leverage. While median prices hold steady around $1.2M, increased inventory gives you room to negotiate on homes needing updates. Turnkey properties still move fast in under 15 days, so act quickly with...