Motivated Seller! Welcome to this charming 2-bedroom, 1-bathroom home conveniently located with easy 580/680 freeway access and walking distance to BART and downtown Castro Valley. Nestled in an established, clean neighborhood, this property offers something for all. As you step inside, you're greeted by original hardwood floors that add character and warmth to the space. Large galley kitchen with dining area opens to the living room with original fireplace. A large, fenced backyard with mature fruit trees and ample gardening spaces awaits. It's a private oasis in the city. The partially converted attached garage presents an exciting opportunity. Whether you choose to add additional bedrooms and bathroom to accommodate your growing needs or convert it into a rental unit for supplemental income, the potential is great for investors and families alike. Don't miss out on the chance to own a piece of this desirable neighborhood with endless possibilities. Schedule your showing today! This property is being sold as is.
Single-familyProperty Type
1946Year Built
5,663 sq ftLot Size
2 car garageParking
Listed by Sara Cooper•DRE #02141987• RE/MAX Gold - Murphys
bridgeMLS, Bay East AOR, or Contra Costa AOR #11012209
May 6, 1999
Sold
$227,000
Apr 21, 1999
Listing Removed
—
Apr 19, 1999
Listed
$229,950
*CALL AGENT. THIS IS A `10`, REMODELED W/ NEW FURNACE/AC-KIT-BATH-ROOF-PLUMBING ETC. 2CAR TANDEM GARAGE - LG YARD 1YR HOME
Public Records
Mar 19, 1991
Sold
$145,000
Year
Property tax
Land + Additions
Assessment*
2025
$9,834 (+282.3%)
$227,847 + $531,644
$759,491
2024
$2,572 (+6.1%)
$223,380 + $521,220
$744,600
2023
$2,426 (+2.9%)
$28,267 + $108,721
$136,988
2022
$2,357 (+1.7%)
$27,170 + $104,500
$131,670
2021
$2,316 (+1.7%)
$27,170 + $104,500
$131,670
2020
$2,279 (−0.4%)
$26,637 + $102,451
$129,088
2019
$2,288 (+5.5%)
$26,364 + $101,400
$127,764
2018
$2,170 (+2.6%)
$25,847 + $99,413
$125,260
2017
$2,114 (+6.8%)
$24,844 + $95,553
$120,397
2016
$1,979 (+3.6%)
$24,844 + $95,553
$120,397
2015
$1,911 (+5.8%)
$24,357 + $93,680
$118,037
2014
$1,806 (+2.3%)
$23,521 + $90,465
$113,986
2013
$1,766 (+2.6%)
$23,521 + $90,465
$113,986
2012
$1,721 (+4.3%)
$23,415 + $90,057
$113,472
2011
$1,650 (+2.1%)
$22,956 + $88,291
$111,247
2010
$1,616 (−0.5%)
$22,506 + $86,560
$109,066
2009
$1,624 (+6.1%)
$22,338 + $85,914
$108,252
2008
$1,531
$22,391 + $86,118
$108,509
Tax history for 21421 Rizzo Ave
Year
Property tax
Land + Additions
Assessment*
2025
$9,834 (+282.3%)
$227,847 + $531,644
$759,491
2024
$2,572 (+6.1%)
$223,380 + $521,220
$744,600
2023
$2,426 (+2.9%)
$28,267 + $108,721
$136,988
2022
$2,357 (+1.7%)
$27,170 + $104,500
$131,670
2021
$2,316 (+1.7%)
$27,170 + $104,500
$131,670
2020
$2,279 (−0.4%)
$26,637 + $102,451
$129,088
2019
$2,288 (+5.5%)
$26,364 + $101,400
$127,764
2018
$2,170 (+2.6%)
$25,847 + $99,413
$125,260
2017
$2,114 (+6.8%)
$24,844 + $95,553
$120,397
2016
$1,979 (+3.6%)
$24,844 + $95,553
$120,397
2015
$1,911 (+5.8%)
$24,357 + $93,680
$118,037
2014
$1,806 (+2.3%)
$23,521 + $90,465
$113,986
2013
$1,766 (+2.6%)
$23,521 + $90,465
$113,986
2012
$1,721 (+4.3%)
$23,415 + $90,057
$113,472
2011
$1,650 (+2.1%)
$22,956 + $88,291
$111,247
2010
$1,616 (−0.5%)
$22,506 + $86,560
$109,066
2009
$1,624 (+6.1%)
$22,338 + $85,914
$108,252
2008
$1,531
$22,391 + $86,118
$108,509
*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
2
Baths
1
Stories
1
Lot width
—
Lot depth
—
Lot size
5,750 Sq. Ft.
Year renovated
1946
Sq. Ft.
1,122
Year built
1946
Style
Single Family Residential
County
Alameda County
APN
415 006006200
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Sep 16, 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
Apr 30, 1999 • Final
Building
Extend the garage and convert the existing pantry into a garage area.
Addition
Remodel
Mar 19, 1997 • Final
Building
Work on re-roofing.
Roofing
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.
Other Bathroom Features: Fiberglass, Tub w/Shower Over
Bedroom Information
# of Bedrooms (Total): 2
# of Bedrooms (Possible): 3
Heating & Cooling
Cooling: Central, See Remarks
Heating: Central, See Remarks
Interior Features
Accessibility Features: Accessible Approach with Ramp
Fireplaces Total: 1
Fireplace Features: Wood Burning
Flooring: Wood
Laundry Features: In Garage
Pets Allowed: Yes
Levels: One
# of Stories: 1
Room Information
Living Room Features: Other
Kitchen Features: Tile Counter
Dining Room Features: Space in Kitchen
Main Level: Bedroom(s), Living Room, Master Bedroom, Garage, Kitchen, Street Entrance
Exterior
Exterior Features
Fencing: Back Yard
Allows Horses: No
Roof: Composition
Pool Information
Has Private Pool: No
Has Spa: No
Property Information
Property Type: Residential
Property Sub Type: Single Family Residence
Subtype Description: Detached
Property Condition: Original
Year Built: 1,946
Land Information
Land Use: Residential
Lot Information
Lot Features: Auto Sprinkler F&R, Curb(s)/Gutter(s), Landscape Back, Landscape Misc, Low Maintenance
Lot Size Square Feet: 5,663
Lot Size Acres: 0.13
Other Structures: Shed(s), Workshop, Kennel/Dog Run
Utilities
Utility Information
Utilities: Cable Connected, DSL Available, Internet Available
Electric: 220 Volts
Sewer: Public Sewer
Irrigation Source: None
Water Source: Public
Location
HOA Information
Association YN: No
School Information
School District County: Alameda
Elementary School District: Castro Valley Unified
Middle Or Junior School District: Castro Valley Unified
High School District: Castro Valley Unified
Location Information
Postal Code Plus 4: 6223
Postal Code: 94546
County Or Parish: Alameda
CrossStreet: Orange
Directions: From 580 take Redwood Rd, right on Vegas, Left onto Orange, Right onto Rizzo
State Or Province: CA
Street Number Numeric: 21421
Unparsed Address: 21421 Rizzo Ave, Castro Valley, CA 94546-6223
Street Address Filtered: 21421 Rizzo Ave
Community Information
Senior Community YN: No
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 1,122
Stories: 1.0
Lot Size: 5,750 square feet
Style: Single Family Residential
Year Built: 1946
Year Renovated: 1946
County: Alameda County
APN: 415 006006200
Home facts updated by county records on Sep 16, 2026
Other
Selling Agent
Buyer Agent Full Name: Non-MLS Member
Around this home
Schools
Fairview Elementary School
Public K-6 • Assigned • 1.7mi
2/10
Bret Harte Middle School
Public 7-8 • Assigned • 1.4mi
4/10
Hayward High School
Public 9-12 • Assigned • 1.4mi
5/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
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