18089 Redwood Rd is a 1,257 square foot house on a 7,320 square foot lot with 3 bedrooms and 1 bathroom. - it last sold on May 05, 1997 for $191,000. Based on Redfin's Castro Valley data, we estimate the home's value is $788,827.
Single-familyProperty Type
1941Year Built
7,320 sq ftLot Size
$628Est. Price/Sq.Ft.
1 car garageParking
Source:Public Records
Redfin Estimate
$788,827
$598K since sold in May 1997$11K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 23.1% lower than the average sale price ($1.03M) of 6 comparable homes.
bridgeMLS, Bay East AOR, or Contra Costa AOR #40529072
Jun 18, 2011
Listing Removed
—
Public Records
May 5, 1997
Sold
$191,000
$152/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$5,506 (+2.4%)
$140,330 + $267,575
$407,905
2024
$5,375 (+1.9%)
$137,579 + $262,329
$399,908
2023
$5,275 (+2.2%)
$134,881 + $257,187
$392,068
2022
$5,163 (+2.7%)
$129,645 + $247,202
$376,847
2021
$5,026 (+2.4%)
$129,645 + $247,202
$376,847
2020
$4,909 (−1.6%)
$127,104 + $242,357
$369,461
2019
$4,992 (+3.0%)
$125,801 + $239,873
$365,674
2018
$4,849 (+2.7%)
$123,335 + $235,171
$358,506
2017
$4,719 (+5.1%)
$118,547 + $226,041
$344,588
2016
$4,489 (+7.0%)
$118,547 + $226,041
$344,588
2015
$4,195 (+1.5%)
$116,223 + $221,610
$337,833
2014
$4,131 (+1.0%)
$112,236 + $214,008
$326,244
2013
$4,089 (+2.2%)
$112,236 + $214,008
$326,244
2012
$4,001 (+1.4%)
$111,730 + $213,042
$324,772
2011
$3,946 (+0.8%)
$109,539 + $208,865
$318,404
2010
$3,916 (−0.3%)
$107,392 + $204,771
$312,163
2009
$3,928 (+3.7%)
$106,590 + $203,243
$309,833
2008
$3,786
$106,844 + $203,726
$310,570
Tax history for 18089 Redwood Rd
Year
Property tax
Land + Additions
Assessment*
2025
$5,506 (+2.4%)
$140,330 + $267,575
$407,905
2024
$5,375 (+1.9%)
$137,579 + $262,329
$399,908
2023
$5,275 (+2.2%)
$134,881 + $257,187
$392,068
2022
$5,163 (+2.7%)
$129,645 + $247,202
$376,847
2021
$5,026 (+2.4%)
$129,645 + $247,202
$376,847
2020
$4,909 (−1.6%)
$127,104 + $242,357
$369,461
2019
$4,992 (+3.0%)
$125,801 + $239,873
$365,674
2018
$4,849 (+2.7%)
$123,335 + $235,171
$358,506
2017
$4,719 (+5.1%)
$118,547 + $226,041
$344,588
2016
$4,489 (+7.0%)
$118,547 + $226,041
$344,588
2015
$4,195 (+1.5%)
$116,223 + $221,610
$337,833
2014
$4,131 (+1.0%)
$112,236 + $214,008
$326,244
2013
$4,089 (+2.2%)
$112,236 + $214,008
$326,244
2012
$4,001 (+1.4%)
$111,730 + $213,042
$324,772
2011
$3,946 (+0.8%)
$109,539 + $208,865
$318,404
2010
$3,916 (−0.3%)
$107,392 + $204,771
$312,163
2009
$3,928 (+3.7%)
$106,590 + $203,243
$309,833
2008
$3,786
$106,844 + $203,726
$310,570
*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
Apr 16, 2024 • Final
Building
Install an energy storage system with batteries.
Battery
Electrical
Solar
Jul 28, 2023 • Final
Building
Install a roof-mounted solar photovoltaic system and a new electrical panel.
Battery
Electrical
Solar
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: Average
Property Information
Living Sq. Ft: 1,257
Building Sq. Ft: 1,257
# of Units: 1
# of Stories: 1
Legal Description: MAP A3 692
Lot Information
# of Buildings: 1
Land Sq. Ft: 7,320
Municipality Name: CASTRO VALLEY UNINCORP
Acres: 0.168
County Use Description: SINGLE FAMILY RESIDENTIAL HOME
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 1.0
Sq. Ft.: 1,257
Stories: 1.0
Lot Size: 7,320 square feet
Style: Single Family Residential
Year Built: 1941
Year Renovated: 1941
County: Alameda County
APN: 084D120800511
Home facts updated by county records on Sep 17, 2026
Around this home
Schools
Proctor Elementary School
Public K-5 • Assigned • 0.2mi
9/10
Creekside Middle School
Public 6-8 • Assigned • 1.3mi
10/10
Castro Valley High School
Public 9-12 • Assigned • 0.6mi
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...