3823 Modesto St is a 832 square foot house on a 5,100 square foot lot with 2 bedrooms and 1 bathroom. - it last sold on August 08, 2018 for $650,000. Based on Redfin's Castro Valley data, we estimate the home's value is $729,832.
Single-familyProperty Type
1950Year Built
5,100 sq ftLot Size
$877Est. Price/Sq.Ft.
2 car garageParking
Source:Public Records
Redfin Estimate
$729,832
$80K since sold in August 2018$22K since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 5.3% lower than the average sale price ($771K) of 6 comparable homes.
bridgeMLS, Bay East AOR, or Contra Costa AOR #40428031
Sep 14, 2009
Listing Removed
—
Public Records
Oct 26, 2005
Sold
$555,000
$667/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #40109147
Sep 15, 2005
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #11043658
Apr 14, 2000
Listing Removed
—
Public Records
Apr 14, 2000
Sold
$215,000
$258/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$9,343 (+2.3%)
$221,872 + $517,703
$739,575
2024
$9,133 (+1.6%)
$217,522 + $507,552
$725,074
2023
$8,985 (+2.0%)
$213,257 + $497,601
$710,858
2022
$8,811 (+2.6%)
$204,978 + $478,282
$683,260
2021
$8,585 (+2.3%)
$204,978 + $478,282
$683,260
2020
$8,389 (−1.8%)
$200,959 + $468,904
$669,863
2019
$8,542 (+64.5%)
$198,900 + $464,100
$663,000
2018
$5,193 (+2.7%)
$195,000 + $455,000
$650,000
2017
$5,055 (+5.1%)
$111,774 + $260,806
$372,580
2016
$4,809 (+7.0%)
$111,774 + $260,806
$372,580
2015
$4,494 (+1.5%)
$109,583 + $255,694
$365,277
2014
$4,428 (+1.0%)
$105,824 + $246,923
$352,747
2013
$4,385 (+2.2%)
$105,824 + $246,923
$352,747
2012
$4,292 (+1.4%)
$105,347 + $245,809
$351,156
2011
$4,233 (−7.3%)
$103,281 + $240,990
$344,271
2010
$4,564 (−9.0%)
$101,256 + $236,265
$337,521
2009
$5,014 (−15.7%)
$108,000 + $252,000
$360,000
2008
$5,947
$119,700 + $279,300
$399,000
Tax history for 3823 Modesto St
Year
Property tax
Land + Additions
Assessment*
2025
$9,343 (+2.3%)
$221,872 + $517,703
$739,575
2024
$9,133 (+1.6%)
$217,522 + $507,552
$725,074
2023
$8,985 (+2.0%)
$213,257 + $497,601
$710,858
2022
$8,811 (+2.6%)
$204,978 + $478,282
$683,260
2021
$8,585 (+2.3%)
$204,978 + $478,282
$683,260
2020
$8,389 (−1.8%)
$200,959 + $468,904
$669,863
2019
$8,542 (+64.5%)
$198,900 + $464,100
$663,000
2018
$5,193 (+2.7%)
$195,000 + $455,000
$650,000
2017
$5,055 (+5.1%)
$111,774 + $260,806
$372,580
2016
$4,809 (+7.0%)
$111,774 + $260,806
$372,580
2015
$4,494 (+1.5%)
$109,583 + $255,694
$365,277
2014
$4,428 (+1.0%)
$105,824 + $246,923
$352,747
2013
$4,385 (+2.2%)
$105,824 + $246,923
$352,747
2012
$4,292 (+1.4%)
$105,347 + $245,809
$351,156
2011
$4,233 (−7.3%)
$103,281 + $240,990
$344,271
2010
$4,564 (−9.0%)
$101,256 + $236,265
$337,521
2009
$5,014 (−15.7%)
$108,000 + $252,000
$360,000
2008
$5,947
$119,700 + $279,300
$399,000
*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
Feb 26, 2019 • Final
Building
Remodel a kitchen and a bathroom. No structural framing or modifications to the floor plans are included.
Bathroom
Kitchen
Remodel
Nov 22, 2017 • Final
Building
Upgrade the electrical service panel from 100 amps to 200 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: 5
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood
Building Construction Quality: Average
Property Information
Living Sq. Ft: 832
Building Sq. Ft: 832
# of Units: 1
# of Stories: 1
Legal Description: TRACT 951 BLK 2 LOT 3
Lot Information
# of Buildings: 1
Land Sq. Ft: 5,100
Legal Lot Number: 3
Legal Block Number: 2
Municipality Name: CASTRO VALLEY UNINCORP
Acres: 0.1171
County Use Description: SINGLE FAMILY RESIDENTIAL HOME
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 832
Stories: 1.0
Lot Size: 5,100 square feet
Style: Single Family Residential
Year Built: 1950
Year Renovated: 1980
County: Alameda County
APN: 084C076800300
Home facts updated by county records on Sep 17, 2026
Around this home
Schools
K - 12
Preschool & daycare
Marshall Elementary School
Public K-5 • Assigned • 0.3mi
9/10
Creekside Middle School
Public 6-8 • Assigned • 0.8mi
10/10
Castro Valley High School
Public 9-12 • Assigned • 0.4mi
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...