18786 Lamson Rd is a 3,632 square foot house on a 0.66 acre lot with 5 bedrooms and 4 bathrooms. Based on Redfin's Castro Valley data, we estimate the home's value is $1,858,584.
Single-familyProperty Type
1941Year Built
0.66 acresLot Size
$512Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,858,584
$30K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 26.7% higher than the average sale price ($1.47M) 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
Nov 16, 2015 • Final
Building
Construct a two-story addition to the side of a single-family home including bedrooms, a family room, an office, and bathrooms. Add a three-car garage below the office and remodel the existing kitchen and bathroom. Demolish an existing detached secondary unit.
Addition
Remodel
Jul 8, 2015 • Final
Building
Rebuild and expand an existing deck and stairs located behind the house off the great room and kitchen.
Addition
Remodel
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
Heating & Cooling
Heating Type: Forced Air
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 9
Exterior
Exterior Information
Physical Condition: Poor
Building Style Type: L-Shape
Construction Type: Wood
Building Construction Quality: Good
Property Information
Subdivision Name: CASTRO VLY ORCHARDS
Living Sq. Ft: 3,632
Building Sq. Ft: 3,632
# of Units: 1
# of Stories: 2
Lot Information
# of Buildings: 1
Land Sq. Ft: 28,809
Legal Lot Number: 19
Municipality Name: CASTRO VALLEY UNINCORP
Acres: 0.6614
County Use Description: SINGLE FAMILY RES HOME WITH NO
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 5
Baths: 4.0
Sq. Ft.: 3,632
Stories: 2.0
Lot Size: 0.66 acres
Style: Single Family Residential
Year Built: 1941
Year Renovated: 1990
County: Alameda County
APN: 084D117502002
Home facts updated by county records on Jul 27, 2026
Around this home
Schools
Chabot Elementary School
Public K-5 • Assigned • 0.4mi
9/10
Creekside Middle School
Public 6-8 • Assigned • 1.7mi
10/10
Castro Valley High School
Public 9-12 • Assigned • 0.7mi
9/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
Castro Valley is moving at a brisk pace this summer! Median prices are holding steady around $1.2M, but well-priced, turnkey homes are flying off the market in under 15 days, often over asking. Inventory is moving fast, so buyers must come prepared...
Strong buyer demand keeps the Castro Valley market moving incredibly fast. With homes frequently selling above their $1.2 million median price, decisive action is essential. To win here, buyers need to submit competitive offers quickly and minimize...