4220 Seven Hills Rd is a 2,442 square foot house on a 5,900 square foot lot with 3 bathrooms. - it last sold on April 29, 1999 for $263,000. Based on Redfin's Castro Valley data, we estimate the home's value is $1,219,466.
Single-familyProperty Type
1950Year Built
5,900 sq ftLot Size
$499Est. Price/Sq.Ft.
1 car garageParking
Source:Public Records
Redfin Estimate
$1,219,466
$956K since sold in April 1999$25K since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 4.1% lower than the average sale price ($1.27M) of 5 comparable homes.
bridgeMLS, Bay East AOR, or Contra Costa AOR #27503606
Aug 30, 2019
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #10503606
Aug 30, 2019
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #28512015
Feb 17, 2015
Listing Removed
—
Public Records
Apr 29, 1999
Sold
$263,000
$108/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #11006077
Mar 10, 1999
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #29003344
Mar 10, 1999
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #10512015
Jun 2, 1998
Listing Removed
—
Public Records
Nov 20, 1979
Sold
$90,000
$37/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$6,843 (+2.4%)
$126,318 + $397,210
$523,528
2024
$6,685 (+1.8%)
$123,841 + $389,423
$513,264
2023
$6,569 (+2.1%)
$121,414 + $381,789
$503,203
2022
$6,435 (+1.3%)
$116,700 + $366,966
$483,666
2021
$6,350 (+3.7%)
$116,700 + $366,966
$483,666
2020
$6,122 (−1.7%)
$114,412 + $359,772
$474,184
2019
$6,229 (+2.9%)
$113,239 + $356,084
$469,323
2018
$6,052 (+2.7%)
$111,019 + $349,103
$460,122
2017
$5,891 (+5.1%)
$106,709 + $335,550
$442,259
2016
$5,605 (+7.0%)
$106,709 + $335,550
$442,259
2015
$5,238 (+1.4%)
$104,617 + $328,972
$433,589
2014
$5,167 (+0.9%)
$101,027 + $317,685
$418,712
2013
$5,121 (+2.1%)
$101,027 + $317,685
$418,712
2012
$5,015 (+1.4%)
$100,571 + $316,252
$416,823
2011
$4,947 (+0.7%)
$98,599 + $310,052
$408,651
2010
$4,911 (−0.4%)
$96,666 + $303,973
$400,639
2009
$4,930 (+3.5%)
$95,944 + $301,702
$397,646
2008
$4,765
$96,173 + $302,420
$398,593
Tax history for 4220 Seven Hills Rd
Year
Property tax
Land + Additions
Assessment*
2025
$6,843 (+2.4%)
$126,318 + $397,210
$523,528
2024
$6,685 (+1.8%)
$123,841 + $389,423
$513,264
2023
$6,569 (+2.1%)
$121,414 + $381,789
$503,203
2022
$6,435 (+1.3%)
$116,700 + $366,966
$483,666
2021
$6,350 (+3.7%)
$116,700 + $366,966
$483,666
2020
$6,122 (−1.7%)
$114,412 + $359,772
$474,184
2019
$6,229 (+2.9%)
$113,239 + $356,084
$469,323
2018
$6,052 (+2.7%)
$111,019 + $349,103
$460,122
2017
$5,891 (+5.1%)
$106,709 + $335,550
$442,259
2016
$5,605 (+7.0%)
$106,709 + $335,550
$442,259
2015
$5,238 (+1.4%)
$104,617 + $328,972
$433,589
2014
$5,167 (+0.9%)
$101,027 + $317,685
$418,712
2013
$5,121 (+2.1%)
$101,027 + $317,685
$418,712
2012
$5,015 (+1.4%)
$100,571 + $316,252
$416,823
2011
$4,947 (+0.7%)
$98,599 + $310,052
$408,651
2010
$4,911 (−0.4%)
$96,666 + $303,973
$400,639
2009
$4,930 (+3.5%)
$95,944 + $301,702
$397,646
2008
$4,765
$96,173 + $302,420
$398,593
*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
Mar 18, 2006 • Final
Building
Construct a two-story addition to a residential building. The project includes adding bedrooms and a bathroom on the second floor, and adding a new bedroom and extending an existing bedroom on the first floor.
Addition
Jan 12, 2001 • Active
Building
Tear off the existing roof and install new plywood and composition shingles.
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
Heating & Cooling
Heating Type: Wall Furnace
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 10
Exterior
Exterior Information
Physical Condition: Good
Building Style Type: L-Shape
Construction Type: Wood
Building Construction Quality: Average
Exterior Wall: Stucco
Building Type: Detached
Property Information
Living Sq. Ft: 2,442
Building Sq. Ft: 2,442
# of Units: 1
# of Stories: 1.5
Parking & Garage Information
# of Parking Spaces: 1
Lot Information
# of Buildings: 1
Land Sq. Ft: 5,900
Municipality Name: CASTRO VALLEY UNINCORP
Acres: 0.1354
County Use Description: SINGLE FAMILY RESIDENTIAL HOME
Utility Information
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: —
Baths: 3.0
Sq. Ft.: 2,442
Stories: 1.5
Lot Size: 5,900 square feet
Style: Single Family Residential
Year Built: 1950
Year Renovated: 1965
County: Alameda County
APN: 084D121500900
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 • 0.6mi
9/10
Creekside Middle School
Public 6-8 • Assigned • 1.3mi
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...