INCREDIBLE OPPORTUNITY FOR BUYERS! Great Value! Upper Valley Location. Large, modernized, 4-5 bedroom, 3.5 bath ranch style single story home, 2,800 square feet on a big .299 acre lot that has privacy, beautiful plants, landscaping, side access. Two car detached garage. Main house is approximately 2,180 square feet of living area. Plus it has a large legal detached 1 bedroom 1 bath Accessory Dwelling Unit (620 Sq. Ft.+/-) has kitchen & living room. Buyer potentially can have lower costs here. Multi-generational fit. 2 potential primary suites in house. Sharp refinished plank hardwood floors. Two fireplaces. Nice modern kitchen, gas range and solid stone countertops. New bathroom. New Dual pane windows. roof less than 1 year old per Seller. Beautiful private rear yard nice pavers, container bed gardens, flowers, newer upgraded electrical. Side access for your boat or trailer. Pride of ownership is here. Seller wants solid offer. Act Now!
Single-familyProperty Type
1952Year Built
0.3 acresLot Size
$627Est. Price/Sq.Ft.
2 car garageParking
Listed by David Wilhite•DRE #00759835• Intero Real Estate Services
Bought with Jessica Dong•DRE #01996773• RE/MAX Accord
bridgeMLS, Bay East AOR, or Contra Costa AOR #40988008
Jun 10, 2022
Sold
$1,610,000
$575/sq ft
May 12, 2022
Pending
—
May 7, 2022
Price Changed
$1,588,800
$567/sq ft
Apr 21, 2022
Price Changed
$1,699,800
$607/sq ft
Apr 11, 2022
Listed
$1,898,800
$678/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$21,030 (+2.2%)
$557,130 + $1,151,402
$1,708,532
2024
$20,585 (+1.5%)
$557,130 + $1,151,402
$1,708,532
2023
$20,290 (+505.7%)
$546,210 + $1,128,834
$1,675,044
2022
$3,350 (+4.0%)
$58,683 + $165,952
$224,635
2021
$3,223 (+2.4%)
$58,683 + $165,952
$224,635
2020
$3,146 (−1.9%)
$57,533 + $159,699
$217,232
2019
$3,206 (+3.0%)
$56,943 + $158,062
$215,005
2018
$3,114 (+2.8%)
$55,827 + $154,963
$210,790
2017
$3,031 (+5.1%)
$53,659 + $148,947
$202,606
2016
$2,883 (+6.9%)
$53,659 + $148,947
$202,606
2015
$2,696 (+2.0%)
$52,607 + $146,028
$198,635
2014
$2,643 (+1.9%)
$50,802 + $141,018
$191,820
2013
$2,595 (+2.4%)
$50,802 + $141,018
$191,820
2012
$2,534 (+1.5%)
$50,572 + $140,381
$190,953
2011
$2,497 (+0.8%)
$49,581 + $137,629
$187,210
2010
$2,477
$48,609 + $134,931
$183,540
2009
$2,478 (+4.9%)
$48,246 + $133,923
$182,169
2008
$2,362
$48,360 + $134,242
$182,602
Tax history for 18603 Sandy Rd
Year
Property tax
Land + Additions
Assessment*
2025
$21,030 (+2.2%)
$557,130 + $1,151,402
$1,708,532
2024
$20,585 (+1.5%)
$557,130 + $1,151,402
$1,708,532
2023
$20,290 (+505.7%)
$546,210 + $1,128,834
$1,675,044
2022
$3,350 (+4.0%)
$58,683 + $165,952
$224,635
2021
$3,223 (+2.4%)
$58,683 + $165,952
$224,635
2020
$3,146 (−1.9%)
$57,533 + $159,699
$217,232
2019
$3,206 (+3.0%)
$56,943 + $158,062
$215,005
2018
$3,114 (+2.8%)
$55,827 + $154,963
$210,790
2017
$3,031 (+5.1%)
$53,659 + $148,947
$202,606
2016
$2,883 (+6.9%)
$53,659 + $148,947
$202,606
2015
$2,696 (+2.0%)
$52,607 + $146,028
$198,635
2014
$2,643 (+1.9%)
$50,802 + $141,018
$191,820
2013
$2,595 (+2.4%)
$50,802 + $141,018
$191,820
2012
$2,534 (+1.5%)
$50,572 + $140,381
$190,953
2011
$2,497 (+0.8%)
$49,581 + $137,629
$187,210
2010
$2,477
$48,609 + $134,931
$183,540
2009
$2,478 (+4.9%)
$48,246 + $133,923
$182,169
2008
$2,362
$48,360 + $134,242
$182,602
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Public record
Public record
Zoning
Permits
Beds
5
Baths
4
Stories
1
Lot width
—
Lot depth
—
Lot size
0.3 Acres
Year renovated
1952
Sq. Ft.
2,800
Year built
1952
Style
Single Family Residential
County
Alameda County
APN
084C087000103
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 27, 2026.
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
Dec 16, 2021 • Final
Reroof - single family residential
Remove and replace the existing roofing on a two-family residential building and a small structure in the back. Tear off the existing composition asphalt shingles and install new class A composition asphalt shingles over the existing roof deck.
Roofing
Feb 2, 2021 • Final
Building
Upgrade the main electrical service panel. Install new subpanels in the house and garage. Rewire the house, excluding the hall bathroom.
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
Parking
Parking Information
Garage Spaces: 2
Covered Spaces: 2
Parking Features: Detached, RV/Boat Parking, Side Yard Access, Garage Faces Side, RV Access, RV Possible, RV Storage, Garage Door Opener
Interior
Virtual Tour
Bathroom Information
# of Bathrooms Total: 4
# of Bathrooms Full: 3
# of Bathrooms Partial: 1
ADU Baths Full: 1
Other Bathrooms Included Features: Shower Over Tub, Stall Shower, Updated Baths, Window
Primary Bathroom Included Features: Stall Shower, Updated Baths, Marble, Window
Fireplace Features: Family Room, Living Room, Raised Hearth, Wood Burning
Basement: Crawl Space
Exterior
Building Information
Construction Materials: Stucco, Siding - Stucco
Building Area Total: 2,800
Foundation Details: Raised, Slab
Exterior Features
Patio And Porch Features: Patio, Front Porch
Exterior Features: Backyard, Garden, Back Yard, Front Yard, Garden/Play, Side Yard, Landscape Back, Landscape Front
Fencing: Fenced, Wood
Roof: Shingle
Property Information
Living Area: 2800
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1952
Has ADU
Lot Information
Other Structures: Guest House
Lot Size Square Feet: 13050
Lot Size Area: 0.2996
Lot Size Units: Acres
Lot Size Acres: 0.2996
Lot Features: Corner Lot, Premium Lot, Front Yard, Landscape Front, Landscape Back
Utilities
Utility Information
Water Source: Public
Sewer: Public Sewer
Heating & Cooling
Has Heating
Heating: Forced Air, Wall Furnace
Cooling: No Air Conditioning
Location
Homeowners Association Information
Pets Allowed: Yes
School Information
High School District: Castro Valley (510) 537-3000
Public facts
Beds: 5
Baths: 4.0
Sq. Ft.: 2,800
Stories: 1.0
Lot Size: 0.3 acres
Style: Single Family Residential
Year Built: 1952
Year Renovated: 1952
County: Alameda County
APN: 084C087000103
Home facts updated by county records on Jul 27, 2026
Around this home
Schools
Proctor Elementary School
Public K-5 • Assigned • 0.6mi
9/10
Canyon Middle School
Public 6-8 • Assigned • 0.8mi
7/10
Castro Valley High School
Public 9-12 • Assigned • 0.8mi
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...
Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2022. This data may not match public records. Learn more.