4070 Greenacre Rd is a 1,124 square foot house on a 5,040 square foot lot with 3 bedrooms and 2 bathrooms. Based on Redfin's Castro Valley data, we estimate the home's value is $833,622.
Single-familyProperty Type
1953Year Built
5,040 sq ftLot Size
$742Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$833,622
$5,000 since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 18.4% lower than the average sale price ($1.02M) of 6 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
$4,619 (+2.5%)
$136,661 + $194,570
$331,231
2024
$4,506 (+2.0%)
$133,982 + $190,755
$324,737
2023
$4,418 (+2.3%)
$131,355 + $187,015
$318,370
2022
$4,319 (+2.8%)
$126,254 + $179,753
$306,007
2021
$4,203 (+2.4%)
$126,254 + $179,753
$306,007
2020
$4,105 (−1.6%)
$123,779 + $176,229
$300,008
2019
$4,171 (+3.0%)
$122,510 + $174,422
$296,932
2018
$4,051 (+3.8%)
$120,108 + $171,003
$291,111
2017
$3,903 (+5.1%)
$115,445 + $161,128
$276,573
2016
$3,712 (+7.0%)
$115,445 + $161,128
$276,573
2015
$3,469 (+1.7%)
$113,182 + $157,970
$271,152
2014
$3,410 (+1.2%)
$109,299 + $152,550
$261,849
2013
$3,370 (+2.3%)
$109,299 + $152,550
$261,849
2012
$3,295 (+1.4%)
$108,805 + $151,861
$260,666
2011
$3,249 (+0.8%)
$106,673 + $148,885
$255,558
2010
$3,223 (−0.2%)
$104,581 + $145,965
$250,546
2009
$3,230 (+4.1%)
$103,800 + $144,875
$248,675
2008
$3,104
$104,047 + $145,220
$249,267
Tax history for 4070 Greenacre Rd
Year
Property tax
Land + Additions
Assessment*
2025
$4,619 (+2.5%)
$136,661 + $194,570
$331,231
2024
$4,506 (+2.0%)
$133,982 + $190,755
$324,737
2023
$4,418 (+2.3%)
$131,355 + $187,015
$318,370
2022
$4,319 (+2.8%)
$126,254 + $179,753
$306,007
2021
$4,203 (+2.4%)
$126,254 + $179,753
$306,007
2020
$4,105 (−1.6%)
$123,779 + $176,229
$300,008
2019
$4,171 (+3.0%)
$122,510 + $174,422
$296,932
2018
$4,051 (+3.8%)
$120,108 + $171,003
$291,111
2017
$3,903 (+5.1%)
$115,445 + $161,128
$276,573
2016
$3,712 (+7.0%)
$115,445 + $161,128
$276,573
2015
$3,469 (+1.7%)
$113,182 + $157,970
$271,152
2014
$3,410 (+1.2%)
$109,299 + $152,550
$261,849
2013
$3,370 (+2.3%)
$109,299 + $152,550
$261,849
2012
$3,295 (+1.4%)
$108,805 + $151,861
$260,666
2011
$3,249 (+0.8%)
$106,673 + $148,885
$255,558
2010
$3,223 (−0.2%)
$104,581 + $145,965
$250,546
2009
$3,230 (+4.1%)
$103,800 + $144,875
$248,675
2008
$3,104
$104,047 + $145,220
$249,267
*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 3, 2017 • Final
Building
Remodel a master bathroom by removing and replacing fixtures with similar items. Replace the shower surround, install a new exhaust fan, and install sheetrock and insulation in the master bedroom.
Bathroom
Remodel
Aug 30, 2017 • Final
Building
Install new central heating and air conditioning.
HVAC
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: L-Shape
Construction Type: Wood
Building Construction Quality: Average
Property Information
Living Sq. Ft: 1,124
Building Sq. Ft: 1,124
# of Units: 1
# of Stories: 1
Legal Description: TRACT 1177 BLK A LOT 18
Lot Information
# of Buildings: 1
Land Sq. Ft: 5,040
Legal Lot Number: 18
Municipality Name: CASTRO VALLEY UNINCORP
Acres: 0.1157
County Use Description: SINGLE FAMILY RESIDENTIAL HOME
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 1,124
Stories: 1.0
Lot Size: 5,040 square feet
Style: Single Family Residential
Year Built: 1953
Year Renovated: 1975
County: Alameda County
APN: 084C065601800
Home facts updated by county records on Sep 17, 2026
Around this home
Schools
Marshall Elementary School
Public K-5 • Assigned • 0.3mi
9/10
Creekside Middle School
Public 6-8 • Assigned • 0.4mi
10/10
Castro Valley High School
Public 9-12 • Assigned • 0.9mi
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...