3133 Sydney Way is a 1,277 square foot house on a 10,205 square foot lot with 3 bedrooms and 1 bathroom. Based on Redfin's Castro Valley data, we estimate the home's value is $884,382.
Single-familyProperty Type
1950Year Built
10,205 sq ftLot Size
$693Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$884,382
$33K since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 6.3% lower than the average sale price ($944K) of 4 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
$2,708 (+2.8%)
$93,832 + $65,094
$158,926
2024
$2,635 (+2.4%)
$91,992 + $63,818
$155,810
2023
$2,573 (+2.6%)
$90,188 + $62,567
$152,755
2022
$2,507 (+2.9%)
$86,687 + $60,137
$146,824
2021
$2,437 (+2.4%)
$86,687 + $60,137
$146,824
2020
$2,379 (−1.3%)
$84,987 + $58,958
$143,945
2019
$2,412 (+3.0%)
$84,116 + $58,354
$142,470
2018
$2,342 (+2.8%)
$82,467 + $57,210
$139,677
2017
$2,279 (+5.1%)
$79,265 + $54,989
$134,254
2016
$2,168 (+7.0%)
$79,265 + $54,989
$134,254
2015
$2,027 (+2.4%)
$77,711 + $53,911
$131,622
2014
$1,980 (+1.9%)
$75,045 + $52,061
$127,106
2013
$1,944 (+2.5%)
$75,045 + $52,061
$127,106
2012
$1,896 (+1.5%)
$74,706 + $51,826
$126,532
2011
$1,869 (+0.9%)
$73,241 + $50,810
$124,051
2010
$1,853 (+0.2%)
$71,805 + $49,814
$121,619
2009
$1,850 (+5.3%)
$71,269 + $49,442
$120,711
2008
$1,757
$71,438 + $49,559
$120,997
Tax history for 3133 Sydney Way
Year
Property tax
Land + Additions
Assessment*
2025
$2,708 (+2.8%)
$93,832 + $65,094
$158,926
2024
$2,635 (+2.4%)
$91,992 + $63,818
$155,810
2023
$2,573 (+2.6%)
$90,188 + $62,567
$152,755
2022
$2,507 (+2.9%)
$86,687 + $60,137
$146,824
2021
$2,437 (+2.4%)
$86,687 + $60,137
$146,824
2020
$2,379 (−1.3%)
$84,987 + $58,958
$143,945
2019
$2,412 (+3.0%)
$84,116 + $58,354
$142,470
2018
$2,342 (+2.8%)
$82,467 + $57,210
$139,677
2017
$2,279 (+5.1%)
$79,265 + $54,989
$134,254
2016
$2,168 (+7.0%)
$79,265 + $54,989
$134,254
2015
$2,027 (+2.4%)
$77,711 + $53,911
$131,622
2014
$1,980 (+1.9%)
$75,045 + $52,061
$127,106
2013
$1,944 (+2.5%)
$75,045 + $52,061
$127,106
2012
$1,896 (+1.5%)
$74,706 + $51,826
$126,532
2011
$1,869 (+0.9%)
$73,241 + $50,810
$124,051
2010
$1,853 (+0.2%)
$71,805 + $49,814
$121,619
2009
$1,850 (+5.3%)
$71,269 + $49,442
$120,711
2008
$1,757
$71,438 + $49,559
$120,997
*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
Aug 28, 2019 • Final
Building
Tear off the existing roof and install a new class A torch-down roofing system.
Roofing
May 6, 1997 • Final
Building
Work on a roof.
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
Subdivision Name: CASTRO MDWS
Living Sq. Ft: 1,277
Building Sq. Ft: 1,277
# of Units: 1
# of Stories: 1
Lot Information
# of Buildings: 1
Land Sq. Ft: 10,205
Legal Lot Number: 49
Municipality Name: CASTRO VALLEY UNINCORP
Acres: 0.2343
County Use Description: SINGLE FAMILY RESIDENTIAL HOME
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 1.0
Sq. Ft.: 1,277
Stories: 1.0
Lot Size: 10,205 square feet
Style: Single Family Residential
Year Built: 1950
Year Renovated: 1950
County: Alameda County
APN: 084B050100300
Home facts updated by county records on Sep 17, 2026
Around this home
Schools
K - 12
Preschool & daycare
Chabot Elementary School
Public K-5 • Assigned • 0.4mi
9/10
Creekside Middle School
Public 6-8 • Assigned • 2.1mi
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 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...