1st time on the market. Drive up your private driveway, enter your home with beautiful hardwood floors, spacious living room with fireplace, formal dining room, sunny kitchen with stainless steel appliances, an eating area, and a deck that you can relax and view your beautiful backyard that is 19,076 sq ft. Inside laundry room with plenty of storage, bedroom with its own bathroom that has access to the backyard that can be used when swimming. Master bathroom has walk in closet. Downstairs has a basement and an extra room or great office that has outside entrance. Side access for Boat, RV Parking and Cars. Close to BART, great schools, shopping and freeway access.
Single-familyProperty Type
1951Year Built
0.44 acresLot Size
$669Est. Price/Sq.Ft.
2 car garageParking
Listed by Lisa Ferraris•DRE #01825858• Christie's Int'l RE Sereno
Bought with Scott Grasmoen•DRE #01029591• Santa Clara Realty
bridgeMLS, Bay East AOR, or Contra Costa AOR #40857399
May 1, 2019
Sold
$1,100,000
$442/sq ft
Mar 27, 2019
Pending
—
Mar 19, 2019
Listed
$1,025,000
$412/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$15,266 (+2.2%)
$368,115 + $858,935
$1,227,050
2024
$14,936 (+1.5%)
$368,115 + $858,935
$1,227,050
2023
$14,713 (+1.9%)
$360,897 + $842,095
$1,202,992
2022
$14,445 (+2.6%)
$346,886 + $809,400
$1,156,286
2021
$14,080 (+2.3%)
$346,886 + $809,400
$1,156,286
2020
$13,761 (+279.7%)
$340,084 + $793,531
$1,133,615
2019
$3,624 (+3.0%)
$336,600 + $785,400
$1,122,000
2018
$3,519 (+2.8%)
$89,357 + $156,821
$246,178
2017
$3,424 (+5.2%)
$85,888 + $150,733
$236,621
2016
$3,256 (+7.0%)
$85,888 + $150,733
$236,621
2015
$3,043 (+1.9%)
$84,204 + $147,778
$231,982
2014
$2,987 (+1.3%)
$81,315 + $142,707
$224,022
2013
$2,948 (+2.3%)
$81,315 + $142,707
$224,022
2012
$2,881 (+1.5%)
$80,947 + $142,063
$223,010
2011
$2,839 (+0.8%)
$79,360 + $139,278
$218,638
2010
$2,817 (−0.1%)
$77,804 + $136,547
$214,351
2009
$2,821 (+4.3%)
$77,223 + $135,527
$212,750
2008
$2,704
$77,406 + $135,849
$213,255
Tax history for 18750 Walnut Rd
Year
Property tax
Land + Additions
Assessment*
2025
$15,266 (+2.2%)
$368,115 + $858,935
$1,227,050
2024
$14,936 (+1.5%)
$368,115 + $858,935
$1,227,050
2023
$14,713 (+1.9%)
$360,897 + $842,095
$1,202,992
2022
$14,445 (+2.6%)
$346,886 + $809,400
$1,156,286
2021
$14,080 (+2.3%)
$346,886 + $809,400
$1,156,286
2020
$13,761 (+279.7%)
$340,084 + $793,531
$1,133,615
2019
$3,624 (+3.0%)
$336,600 + $785,400
$1,122,000
2018
$3,519 (+2.8%)
$89,357 + $156,821
$246,178
2017
$3,424 (+5.2%)
$85,888 + $150,733
$236,621
2016
$3,256 (+7.0%)
$85,888 + $150,733
$236,621
2015
$3,043 (+1.9%)
$84,204 + $147,778
$231,982
2014
$2,987 (+1.3%)
$81,315 + $142,707
$224,022
2013
$2,948 (+2.3%)
$81,315 + $142,707
$224,022
2012
$2,881 (+1.5%)
$80,947 + $142,063
$223,010
2011
$2,839 (+0.8%)
$79,360 + $139,278
$218,638
2010
$2,817 (−0.1%)
$77,804 + $136,547
$214,351
2009
$2,821 (+4.3%)
$77,223 + $135,527
$212,750
2008
$2,704
$77,406 + $135,849
$213,255
*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
3
Baths
3
Stories
1
Lot width
—
Lot depth
—
Lot size
0.44 Acres
Year renovated
1951
Sq. Ft.
2,486
Year built
1951
Style
Single Family Residential
County
Alameda County
APN
084D116803402
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
Aug 20, 2004 • Final
Building
Tear off the existing roof and install new composition shingles on a residential building.
Roofing
Jun 10, 1999 • Final
Building
Work on a swimming pool.
Pool and hot tub
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
Has Attached Garage
Garage Spaces: 2
Covered Spaces: 2
Parking Features: Attached, RV/Boat Parking, Side Yard Access
Interior
Virtual Tour
Bathroom Information
# of Bathrooms Total: 3
# of Bathrooms Full: 3
Other Bathrooms Included Features: Tub with Jets
Primary Bathroom Included Features: Stall Shower
Interior Features
Interior Features: Office, Stone Counters, Updated Kitchen
Appliances: Dishwasher, Disposal, Gas Range, Microwave, Refrigerator, Gas Water Heater
Laundry Features: Hookups Only, Laundry Room
Street Level Features: 3 Bedrooms, 3 Baths, Laundry Facility, Main Entry
Exterior Features: Back Yard, Front Yard, Side Yard, Sprinklers Automatic, Sprinklers Back, Storage
Door Features: Mirrored Closet Door(s)
Fencing: Fenced
Roof: Shingle
Pool Information
Pool Features: Gunite, In Ground, No Heat, Pool Cover, Pool Sweep
Has Private Pool
Property Information
Living Area: 2486
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1951
Lot Information
Lot Size Square Feet: 19076
Lot Size Area: 0.44
Lot Size Units: Acres
Lot Size Acres: 0.44
Lot Features: Premium Lot, Regular
Utilities
Utility Information
Water Source: Public
Sewer: Public Sewer
Heating & Cooling
Has Heating
Heating: Forced Air
Location
Homeowners Association Information
Pets Allowed: Yes
Public facts
Beds: 3
Baths: 3.0
Sq. Ft.: 2,486
Stories: 1.0
Lot Size: 0.44 acres
Style: Single Family Residential
Year Built: 1951
Year Renovated: 1951
County: Alameda County
APN: 084D116803402
Home facts updated by county records on Jul 27, 2026
Around this home
Schools
Chabot Elementary School
Public K-5 • Assigned • 0.4mi
9/10
Creekside Middle School
Public 6-8 • Assigned • 1.8mi
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'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 2019. This data may not match public records. Learn more.