19686 Alvertus Ave is a 1,324 square foot house on a 5,040 square foot lot with 3 bedrooms and 2 bathrooms. - it last sold on May 27, 1987 for $152,000. Based on Redfin's Castro Valley data, we estimate the home's value is $933,047.
Single-familyProperty Type
1957Year Built
5,040 sq ftLot Size
$705Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$933,047
$781K since sold in May 1987$0 since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 17.1% lower than the average sale price ($1.13M) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning and permits
Zoning
Permits
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
May 16, 1996 • Final
Building
Work on re-roofing.
Roofing
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Interior
Room Information
# of Rooms: 5
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood
Building Construction Quality: Average
Property Information
Living Sq. Ft: 1,324
Building Sq. Ft: 1,324
# of Units: 1
# of Stories: 1
Legal Description: TRACT 1779 BLK A LOT 28
Lot Information
# of Buildings: 1
Land Sq. Ft: 5,040
Legal Lot Number: 28
Municipality Name: CASTRO VALLEY UNINCORP
Acres: 0.1157
County Use Description: SINGLE FAMILY RESIDENTIAL HOME
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 1,324
Stories: 1.0
Lot Size: 5,040 square feet
Style: Single Family Residential
Year Built: 1957
Year Renovated: 1958
County: Alameda County
APN: 084B054606600
Home facts updated by county records on Sep 17, 2026
Around this home
Schools
Castro Valley Elementary School
Public K-5 • Assigned • 0.3mi
6/10
Creekside Middle School
Public 6-8 • Assigned • 1.4mi
10/10
Castro Valley High School
Public 9-12 • Assigned • 0.5mi
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...