17821 Parker Rd is a 1,160 square foot house on a 0.26 acre lot with 2 bedrooms and 1 bathroom. Based on Redfin's Castro Valley data, we estimate the home's value is $1,039,036.
Single-familyProperty Type
1947Year Built
0.26 acresLot Size
$896Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,039,036
$4,000 since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 17% higher than the average sale price ($888K) of 5 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
$1,823 (+3.2%)
$47,809 + $39,964
$87,773
2024
$1,766 (+3.1%)
$47,809 + $39,964
$87,773
2023
$1,714 (+3.2%)
$46,872 + $39,180
$86,052
2022
$1,660 (+3.1%)
$45,052 + $37,659
$82,711
2021
$1,610 (+2.6%)
$45,052 + $37,659
$82,711
2020
$1,569 (−0.9%)
$44,169 + $36,920
$81,089
2019
$1,584 (+3.1%)
$43,716 + $36,542
$80,258
2018
$1,536 (+3.0%)
$42,859 + $35,826
$78,685
2017
$1,491 (+5.2%)
$41,195 + $34,435
$75,630
2016
$1,417 (+7.0%)
$41,195 + $34,435
$75,630
2015
$1,324 (+3.4%)
$40,387 + $33,759
$74,146
2014
$1,280 (+2.8%)
$39,001 + $32,601
$71,602
2013
$1,245 (+3.0%)
$39,001 + $32,601
$71,602
2012
$1,209 (+1.7%)
$38,825 + $32,454
$71,279
2011
$1,189 (+1.1%)
$38,064 + $31,817
$69,881
2010
$1,176 (+0.7%)
$37,318 + $31,194
$68,512
2009
$1,169 (+7.2%)
$37,039 + $30,961
$68,000
2008
$1,090
$37,127 + $31,034
$68,161
Tax history for 17821 Parker Rd
Year
Property tax
Land + Additions
Assessment*
2025
$1,823 (+3.2%)
$47,809 + $39,964
$87,773
2024
$1,766 (+3.1%)
$47,809 + $39,964
$87,773
2023
$1,714 (+3.2%)
$46,872 + $39,180
$86,052
2022
$1,660 (+3.1%)
$45,052 + $37,659
$82,711
2021
$1,610 (+2.6%)
$45,052 + $37,659
$82,711
2020
$1,569 (−0.9%)
$44,169 + $36,920
$81,089
2019
$1,584 (+3.1%)
$43,716 + $36,542
$80,258
2018
$1,536 (+3.0%)
$42,859 + $35,826
$78,685
2017
$1,491 (+5.2%)
$41,195 + $34,435
$75,630
2016
$1,417 (+7.0%)
$41,195 + $34,435
$75,630
2015
$1,324 (+3.4%)
$40,387 + $33,759
$74,146
2014
$1,280 (+2.8%)
$39,001 + $32,601
$71,602
2013
$1,245 (+3.0%)
$39,001 + $32,601
$71,602
2012
$1,209 (+1.7%)
$38,825 + $32,454
$71,279
2011
$1,189 (+1.1%)
$38,064 + $31,817
$69,881
2010
$1,176 (+0.7%)
$37,318 + $31,194
$68,512
2009
$1,169 (+7.2%)
$37,039 + $30,961
$68,000
2008
$1,090
$37,127 + $31,034
$68,161
*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 22, 2016 • Final
Building
Extend a gas line and electrical circuit to a new fireplace insert.
Electrical
Gas
Aug 26, 2010 • Final
Building
Remodel a kitchen by installing recessed and under-cabinet lighting. Replace appliances and the range hood, and install pendant lights. Relocate the range electrical outlet with no rough plumbing work included.
Electrical
Kitchen
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
Room Information
# of Rooms: 6
Exterior
Exterior Information
Building Style Type: Rectangular Design
Construction Type: Wood
Building Construction Quality: Average
Property Information
Subdivision Name: CASTRO VLY ORCHARDS
Living Sq. Ft: 1,160
Building Sq. Ft: 1,160
# of Units: 1
# of Stories: 1
Lot Information
# of Buildings: 1
Land Sq. Ft: 11,118
Legal Lot Number: 9
Municipality Name: CASTRO VALLEY UNINCORP
Acres: 0.2552
County Use Description: SINGLE FAMILY RESIDENTIAL HOME
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 1,160
Stories: 1.0
Lot Size: 0.26 acres
Style: Single Family Residential
Year Built: 1947
Year Renovated: 1947
County: Alameda County
APN: 084D115500804
Home facts updated by county records on Jul 27, 2026
Around this home
Schools
Proctor Elementary School
Public K-5 • Assigned • 0.8mi
9/10
Creekside Middle School
Public 6-8 • Assigned • 2.0mi
10/10
Castro Valley High School
Public 9-12 • Assigned • 1.1mi
9/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
Castro Valley's late-summer market shows a clear split. While median prices hold near $1.2M, increased inventory gives buyers leverage on older properties. However, immaculate homes still go pending in under 15 days. A strong, clean offer is key!
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...