18645 Sheffield Rd is a 1,940 square foot house on a 0.31 acre lot with 3 bedrooms and 2 bathrooms. Based on Redfin's Castro Valley data, we estimate the home's value is $1,173,800.
Single-familyProperty Type
1963Year Built
0.31 acresLot Size
$605Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,173,800
$8,000 since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 11.8% lower than the average sale price ($1.33M) of 6 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$2,955 (+2.7%)
$79,562 + $100,714
$180,276
2024
$2,877 (+2.3%)
$78,002 + $98,739
$176,741
2023
$2,812 (+2.6%)
$76,472 + $96,804
$173,276
2022
$2,742 (+2.8%)
$73,503 + $93,045
$166,548
2021
$2,666 (+2.4%)
$73,503 + $93,045
$166,548
2020
$2,603 (−1.4%)
$72,062 + $91,220
$163,282
2019
$2,640 (+3.0%)
$71,323 + $90,285
$161,608
2018
$2,564 (+2.8%)
$69,925 + $88,515
$158,440
2017
$2,495 (+5.1%)
$67,209 + $85,078
$152,287
2016
$2,374 (+6.9%)
$67,209 + $85,078
$152,287
2015
$2,220 (+2.3%)
$65,892 + $83,410
$149,302
2014
$2,171 (+1.7%)
$63,631 + $80,548
$144,179
2013
$2,134 (+2.4%)
$63,631 + $80,548
$144,179
2012
$2,083 (+1.4%)
$63,344 + $80,184
$143,528
2011
$2,054 (+0.8%)
$62,102 + $78,612
$140,714
2010
$2,036
$60,884 + $77,071
$137,955
2009
$2,035 (+5.0%)
$60,430 + $76,495
$136,925
2008
$1,938
$60,573 + $76,677
$137,250
Tax history for 18645 Sheffield Rd
Year
Property tax
Land + Additions
Assessment*
2025
$2,955 (+2.7%)
$79,562 + $100,714
$180,276
2024
$2,877 (+2.3%)
$78,002 + $98,739
$176,741
2023
$2,812 (+2.6%)
$76,472 + $96,804
$173,276
2022
$2,742 (+2.8%)
$73,503 + $93,045
$166,548
2021
$2,666 (+2.4%)
$73,503 + $93,045
$166,548
2020
$2,603 (−1.4%)
$72,062 + $91,220
$163,282
2019
$2,640 (+3.0%)
$71,323 + $90,285
$161,608
2018
$2,564 (+2.8%)
$69,925 + $88,515
$158,440
2017
$2,495 (+5.1%)
$67,209 + $85,078
$152,287
2016
$2,374 (+6.9%)
$67,209 + $85,078
$152,287
2015
$2,220 (+2.3%)
$65,892 + $83,410
$149,302
2014
$2,171 (+1.7%)
$63,631 + $80,548
$144,179
2013
$2,134 (+2.4%)
$63,631 + $80,548
$144,179
2012
$2,083 (+1.4%)
$63,344 + $80,184
$143,528
2011
$2,054 (+0.8%)
$62,102 + $78,612
$140,714
2010
$2,036
$60,884 + $77,071
$137,955
2009
$2,035 (+5.0%)
$60,430 + $76,495
$136,925
2008
$1,938
$60,573 + $76,677
$137,250
*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
Jul 7, 2017 • Final
Building
Remove existing wood shingles and shakes from a residential building. Install a new roof deck with OSB and new composition asphalt shingles.
Roofing
Mar 15, 2002 • Final
Building
Upgrade the electrical service to 100 amps.
Electrical
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: 7
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood
Building Construction Quality: Good
Property Information
Living Sq. Ft: 1,940
Building Sq. Ft: 1,940
# of Units: 1
# of Stories: 1
Lot Information
# of Buildings: 1
Land Sq. Ft: 13,400
Legal Lot Number: 5
Legal Block Number: A
Municipality Name: CASTRO VALLEY UNINCORP
Acres: 0.3076
County Use Description: SINGLE FAMILY RESIDENTIAL HOME
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 1,940
Stories: 1.0
Lot Size: 0.31 acres
Style: Single Family Residential
Year Built: 1963
Year Renovated: 1965
County: Alameda County
APN: 084B039603500
Home facts updated by county records on Sep 17, 2026
Around this home
Schools
Stanton Elementary School
Public K-5 • Assigned • 0.7mi
6/10
Creekside Middle School
Public 6-8 • Assigned • 2.5mi
10/10
Castro Valley High School
Public 9-12 • Assigned • 1.5mi
9/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
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...