18023 Reamer Rd is a 1,668 square foot house on a 0.37 acre lot with 3 bedrooms and 4 bathrooms. Based on Redfin's Castro Valley data, we estimate the home's value is $1,359,075.
Single-familyProperty Type
1948Year Built
0.37 acresLot Size
$815Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,359,075
$10K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 12.3% higher than the average sale price ($1.21M) of 5 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
$2,956 (+2.8%)
$58,482 + $125,323
$183,805
2024
$2,877 (+2.4%)
$58,482 + $125,323
$183,805
2023
$2,810 (+2.6%)
$57,335 + $122,866
$180,201
2022
$2,738 (+2.9%)
$55,109 + $118,095
$173,204
2021
$2,661 (+2.5%)
$55,109 + $118,095
$173,204
2020
$2,597 (−1.3%)
$54,029 + $115,780
$169,809
2019
$2,632 (+3.0%)
$53,475 + $114,593
$168,068
2018
$2,555 (+2.8%)
$52,426 + $112,346
$164,772
2017
$2,484 (+5.2%)
$50,391 + $107,984
$158,375
2016
$2,362 (+7.0%)
$50,391 + $107,984
$158,375
2015
$2,208 (+2.4%)
$49,403 + $105,867
$155,270
2014
$2,157 (+1.7%)
$47,708 + $102,234
$149,942
2013
$2,120 (+2.5%)
$47,708 + $102,234
$149,942
2012
$2,068 (+1.5%)
$47,492 + $101,773
$149,265
2011
$2,037 (+0.9%)
$46,561 + $99,777
$146,338
2010
$2,019
$45,648 + $97,821
$143,469
2009
$2,018 (+5.1%)
$45,307 + $97,090
$142,397
2008
$1,920
$45,415 + $97,321
$142,736
Tax history for 18023 Reamer Rd
Year
Property tax
Land + Additions
Assessment*
2025
$2,956 (+2.8%)
$58,482 + $125,323
$183,805
2024
$2,877 (+2.4%)
$58,482 + $125,323
$183,805
2023
$2,810 (+2.6%)
$57,335 + $122,866
$180,201
2022
$2,738 (+2.9%)
$55,109 + $118,095
$173,204
2021
$2,661 (+2.5%)
$55,109 + $118,095
$173,204
2020
$2,597 (−1.3%)
$54,029 + $115,780
$169,809
2019
$2,632 (+3.0%)
$53,475 + $114,593
$168,068
2018
$2,555 (+2.8%)
$52,426 + $112,346
$164,772
2017
$2,484 (+5.2%)
$50,391 + $107,984
$158,375
2016
$2,362 (+7.0%)
$50,391 + $107,984
$158,375
2015
$2,208 (+2.4%)
$49,403 + $105,867
$155,270
2014
$2,157 (+1.7%)
$47,708 + $102,234
$149,942
2013
$2,120 (+2.5%)
$47,708 + $102,234
$149,942
2012
$2,068 (+1.5%)
$47,492 + $101,773
$149,265
2011
$2,037 (+0.9%)
$46,561 + $99,777
$146,338
2010
$2,019
$45,648 + $97,821
$143,469
2009
$2,018 (+5.1%)
$45,307 + $97,090
$142,397
2008
$1,920
$45,415 + $97,321
$142,736
*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
Jan 25, 2008 • Final
Building
Replace the gas line from the meter to the house.
Gas
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: 8
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood
Building Construction Quality: Average
Property Information
Living Sq. Ft: 1,668
Building Sq. Ft: 1,668
# of Units: 1
Legal Description: TRACT 566 PART OF LOT 19,20
Lot Information
# of Buildings: 1
Land Sq. Ft: 16,125
Legal Lot Number: 19
Municipality Name: CASTRO VALLEY UNINCORP
Acres: 0.3702
County Use Description: SINGLE FAMILY RESIDENTIAL HOME
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 3
Baths: 4.0
Sq. Ft.: 1,668
Stories: —
Lot Size: 0.37 acres
Style: Single Family Residential
Year Built: 1948
Year Renovated: 1951
County: Alameda County
APN: 084D116002300
Home facts updated by county records on Jul 27, 2026
Around this home
Schools
Proctor Elementary School
Public K-5 • Assigned • 0.7mi
9/10
Creekside Middle School
Public 6-8 • Assigned • 1.9mi
10/10
Castro Valley High School
Public 9-12 • Assigned • 1.0mi
9/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
Castro Valley's late-summer market shows a clear split. While median prices hold near $1.2M, increased inventory gives buyers leverage on older properties. However, immaculate homes still go pending in under 15 days. A strong, clean offer is key!
Strong buyer demand keeps the Castro Valley market moving incredibly fast. With homes frequently selling above their $1.2 million median price, decisive action is essential. To win here, buyers need to submit competitive offers quickly and minimize...