Wonderful Family Home that was almost totally rebuilt/remodeled in 2006 w/permits ! Great Room with fireplace and vaulted ceilings,lrg frml dining rm, kitchen w/granite, pantry. Large mstr suite and oversized garage. Large terraced yards. Open Sunday 6/29 1-4
Single-familyProperty Type
1953Year Built
10,065 sq ftLot Size
$666Est. Price/Sq.Ft.
2 car garageParking
Listed by Catherine Brent•DRE #01088138• BHHS Drysdale Properties
Listed by Kathi Townsend•DRE #01409032• Berkshire Hathaway Home Services
Bought with Danielle Keil•DRE #01280917• Coldwell Banker Realty
bridgeMLS, Bay East AOR, or Contra Costa AOR #40659020
Aug 4, 2014
Sold
$694,500
$321/sq ft
Jul 3, 2014
Pending
—
May 26, 2014
Listed
$699,000
$323/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #10520460
Jan 25, 1999
Sold
$219,000
$101/sq ft
Dec 1, 1998
Listing Removed
—
Sep 29, 1998
Listed
$225,000
$104/sq ft
EXCELLENT COMMUTE LOCATION. PRESTIGOUS CASTRO VALLEY AREA. COUNTRY SETTING. :NEAR LAKE CHABOT. BIG LOT. FENCED YARD.
bridgeMLS, Bay East AOR, or Contra Costa AOR #28520460
Jan 1, 1999
Sold
$219,000
$101/sq ft
Nov 24, 1998
Listing Removed
—
Sep 29, 1998
Listed
$225,000
$104/sq ft
Public Records
Feb 28, 1991
Sold
$209,000
$97/sq ft
Public Records
Jan 28, 1986
Sold
$64,500
$30/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$10,718 (+2.2%)
$250,337 + $584,320
$834,657
2024
$10,483 (+1.6%)
$250,337 + $584,320
$834,657
2023
$10,319 (+1.9%)
$245,429 + $572,865
$818,294
2022
$10,124 (+2.6%)
$235,899 + $550,621
$786,520
2021
$9,868 (+2.3%)
$235,899 + $550,621
$786,520
2020
$9,644 (−1.8%)
$231,275 + $539,827
$771,102
2019
$9,824 (+2.9%)
$228,905 + $534,294
$763,199
2018
$9,548 (+2.7%)
$224,418 + $523,822
$748,240
2017
$9,299 (+5.1%)
$215,705 + $503,484
$719,189
2016
$8,849 (+7.0%)
$215,705 + $503,484
$719,189
2015
$8,271 (+40.6%)
$211,476 + $493,614
$705,090
2014
$5,884 (+0.8%)
$84,402 + $398,329
$482,731
2013
$5,836 (+2.1%)
$84,402 + $398,329
$482,731
2012
$5,718 (+1.4%)
$84,021 + $396,532
$480,553
2011
$5,640 (+0.7%)
$82,374 + $388,757
$471,131
2010
$5,600 (+3.7%)
$80,759 + $381,136
$461,895
2009
$5,401 (+3.4%)
$80,156 + $378,289
$458,445
2008
$5,224
$80,347 + $359,589
$439,936
Tax history for 18881 Walnut Rd
Year
Property tax
Land + Additions
Assessment*
2025
$10,718 (+2.2%)
$250,337 + $584,320
$834,657
2024
$10,483 (+1.6%)
$250,337 + $584,320
$834,657
2023
$10,319 (+1.9%)
$245,429 + $572,865
$818,294
2022
$10,124 (+2.6%)
$235,899 + $550,621
$786,520
2021
$9,868 (+2.3%)
$235,899 + $550,621
$786,520
2020
$9,644 (−1.8%)
$231,275 + $539,827
$771,102
2019
$9,824 (+2.9%)
$228,905 + $534,294
$763,199
2018
$9,548 (+2.7%)
$224,418 + $523,822
$748,240
2017
$9,299 (+5.1%)
$215,705 + $503,484
$719,189
2016
$8,849 (+7.0%)
$215,705 + $503,484
$719,189
2015
$8,271 (+40.6%)
$211,476 + $493,614
$705,090
2014
$5,884 (+0.8%)
$84,402 + $398,329
$482,731
2013
$5,836 (+2.1%)
$84,402 + $398,329
$482,731
2012
$5,718 (+1.4%)
$84,021 + $396,532
$480,553
2011
$5,640 (+0.7%)
$82,374 + $388,757
$471,131
2010
$5,600 (+3.7%)
$80,759 + $381,136
$461,895
2009
$5,401 (+3.4%)
$80,156 + $378,289
$458,445
2008
$5,224
$80,347 + $359,589
$439,936
*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
1.5
Lot width
—
Lot depth
—
Lot size
10,065 Sq. Ft.
Year renovated
1979
Sq. Ft.
2,162
Year built
1953
Style
Single Family Residential
County
Alameda County
APN
084D110706700
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
Sep 29, 2021 • Final
Building
Install a 240 volt receptacle for an electric vehicle in a garage and run the necessary conduit.
Electrical
Ev charger
Oct 18, 2006 • Final
Building
Complete an addition and remodel of a single-family home. The project includes a new entry, living room, kitchen, and nook on the lower floor, along with a garage extension and conversion of garage space into a dining room. The upper floor will be extended and remodeled to include a new master bedroom, bathroom, and walk-in closet, while installing a new electrical service, water heater, and furnace.
Addition
Electrical
HVAC
Plumbing
Remodel
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, Int Access From Garage, Off Street, Garage Door Opener
Interior
Bathroom Information
# of Bathrooms Total: 3
# of Bathrooms Full: 2
# of Bathrooms Partial: 1
Other Bathrooms Included Features: Shower Over Tub, Updated Baths
Primary Bathroom Included Features: Stall Shower, Tub with Jets, Updated Baths
Interior Features
Interior Features: Formal Dining Room, Stone Counters, Updated Kitchen
Appliances: Dishwasher, Disposal, Gas Water Heater
Laundry Features: 220 Volt Outlet, Hookups Only, In Garage
Kitchen Features: 220 Volt Outlet,Counter - Stone,Dishwasher,Garbage Disposal,Updated Kitchen
Rooms Total: 6
Fireplace Features: Living Room, Wood Stove Insert
Basement: Crawl Space
Exterior
Building Information
Construction Materials: Stucco
Building Area Total: 2,162
Exterior Features
Patio And Porch Features: Patio
Exterior Features: Back Yard, Front Yard, Garden/Play, Sprinklers Automatic, Terraced Up
Door Features: Mirrored Closet Door(s)
Fencing: Fenced
Roof: Shingle
Property Information
Living Area: 2162
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1953
Lot Information
Lot Size Square Feet: 10065
Lot Size Area: 0.231061
Lot Size Units: Acres
Lot Size Acres: 0.231061
Lot Features: Level, Sloped Up
Zoning: 1001
Utilities
Utility Information
Water Source: Public
Electric: 220 Volts in Kitchen
Sewer: Public Sewer
Heating & Cooling
Has Heating
Heating: Forced Air, Natural Gas
Cooling: Ceiling Fan(s), No Air Conditioning
Public facts
Beds: 3
Baths: 3.0
Sq. Ft.: 2,162
Stories: 1.5
Lot Size: 10,065 square feet
Style: Single Family Residential
Year Built: 1953
Year Renovated: 1979
County: Alameda County
APN: 084D110706700
Home facts updated by county records on Jul 27, 2026
Around this home
Schools
Places
Transit
Chabot Elementary School
Public K-5 • Assigned • 0.3mi
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 2014. This data may not match public records. Learn more.