Welcoming curb appeal invites you to this expansive 2,474 sq. ft. home featuring 4 bedrooms and 3 baths in the established Upper Baywood neighborhood of Castro Valley. Enjoy stunning panoramic valley views by day and twinkling lights at night from the rear deck and from many rooms throughout the home. Freshly painted inside and out, this home has been owned by the same family for many years, who appreciated its breathtaking views, spacious rooms, flexible floor plan, and abundant storage. The main level features an updated kitchen that opens to the living areas on either side, along with the primary suite, an additional bedroom, and a full bath. Downstairs offers another bedroom, full bath, and a generous bonus room that can serve as a fourth bedroom, home office, or family room. With its flexible layout, the lower level also presents an excellent opportunity for a potential separate living area for extended family, guests, or rental income to help offset the mortgage. This level also provides direct access to a large basement/storage area with standing headroom, offering exceptional storage space. Additional highlights include drought-resistant landscaping and a desirable location close to Trader Joe's, shopping, and convenient commuter access. Come check out this special property!
Single-familyProperty Type
1975Year Built
7,140 sq ftLot Size
$473Price/Sq.Ft.
2 car garageParking
Listed by Ted Von Roll•DRE #00370936• RE/MAX Accord
Listed by Elizabeth Dunbar•DRE #01994756• RE/MAX Accord
Bought with Gail Lillian•DRE #02184500• Red Oak Realty
Est. $4,210 per month, based on comparable rentals
Sale and tax history for 21714 Shadyspring Rd
Sale History
Tax History
Date
Event
Price
bridgeMLS, Bay East AOR, or Contra Costa AOR #41142674
Sep 11, 2026
Sold
$1,170,000
$473/sq ft
Aug 21, 2026
Pending
—
Jul 23, 2026
Listed
$1,158,000
$468/sq ft
Public Records
Oct 5, 1994
Sold
$285,000
$115/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$6,591 (+2.6%)
$146,478 + $341,783
$488,261
2024
$6,425 (+2.0%)
$143,606 + $335,082
$478,688
2023
$6,301 (+2.4%)
$140,791 + $328,512
$469,303
2022
$6,154 (+1.2%)
$135,325 + $315,758
$451,083
2021
$6,083 (+1.4%)
$135,325 + $315,758
$451,083
2020
$6,002 (−0.7%)
$132,672 + $309,568
$442,240
2019
$6,044 (+6.4%)
$131,311 + $306,394
$437,705
2018
$5,681 (+2.6%)
$128,737 + $300,387
$429,124
2017
$5,540 (+6.0%)
$123,739 + $288,724
$412,463
2016
$5,224 (+2.7%)
$123,739 + $288,724
$412,463
2015
$5,087 (+5.7%)
$121,313 + $283,064
$404,377
2014
$4,812 (+1.2%)
$117,151 + $273,352
$390,503
2013
$4,753 (+2.1%)
$117,151 + $273,352
$390,503
2012
$4,653 (+1.7%)
$116,622 + $272,118
$388,740
2011
$4,576 (+2.2%)
$114,335 + $266,783
$381,118
2010
$4,476 (−1.4%)
$112,093 + $261,552
$373,645
2009
$4,538 (+4.0%)
$111,256 + $259,599
$370,855
2008
$4,363
$111,521 + $260,217
$371,738
Public record
Public record
Zoning
Beds
3
Baths
2
Stories
1
Lot width
—
Lot depth
—
Lot size
7,140 Sq. Ft.
Year renovated
1976
Sq. Ft.
2,463
Year built
1975
Style
Single Family Residential
County
Alameda County
APN
415 020001002
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Oct 20, 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
Property details
Parking
Parking Information
Garage Spaces: 2
Covered Spaces: 2
Parking Features: Attached, Garage Door Opener
Interior
Bathroom Information
# of Bathrooms Total: 3
# of Bathrooms Full: 3
Other Bathrooms Included Features: Stall Shower, Tub
Primary Bathroom Included Features: Stall Shower
Interior Features
Interior Features: Family Room, Updated Kitchen
Appliances: Dishwasher, Double Oven, Electric Range, Refrigerator, Dryer, Washer
Laundry Features: Dryer, Laundry Closet, Washer, Electric
Street Level Features: 1 Bedroom, 1 Bath, Primary Bedrm Suite - 1
Window Features: Double Pane Windows
Fireplaces Total: 1
Has Fireplace
Flooring: Hardwood, Linoleum, Tile, Carpet
Room Information
Kitchen Features: 220 Volt Outlet,Stone Counters,Dishwasher,Double Oven,Eat-in Kitchen,Electric Range/Cooktop,Disposal,Refrigerator,Updated Kitchen
Rooms Total: 6
Room Type: Basement, Family Room
Fireplace Features: Family Room, Wood Burning
Basement: Crawl Space
Exterior
Building Information
Construction Materials: Stucco
Building Area Total: 2,474
Exterior Features
Exterior Features: Terraced Down, Landscape Front
Door Features: Mirrored Closet Door(s)
Property Information
Living Area: 2474
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1975
Lot Information
Lot Size Square Feet: 7140
Lot Size Area: 0.16
Lot Size Units: Acres
Lot Size Acres: 0.16
Lot Features: Sloped Down, Premium Lot, Landscaped
Utilities
Utility Information
Water Source: Public
Electric: 220 Volts in Kitchen
Sewer: Public Sewer
Heating & Cooling
Has Heating
Heating: Forced Air
Cooling: Ceiling Fan(s)
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 2,463
Stories: 1.0
Lot Size: 7,140 square feet
Style: Single Family Residential
Year Built: 1975
Year Renovated: 1976
County: Alameda County
APN: 415 020001002
Home facts updated by county records on Oct 20, 2026
Around this home
Schools
Fairview Elementary School
Public K-6 • Assigned • 1.7mi
2/10
Bret Harte Middle School
Public 7-8 • Assigned • 1.1mi
4/10
Hayward High School
Public 9-12 • Assigned • 1.2mi
5/10
Provided by GreatSchools
Local insights from Redfin agents
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...
Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2026. This data may not match public records. Learn more.