This is perfect opportunity to have a great rental property. All utilities are paid by tenants. You can live in one unit & have tenant pay most of your mortgage.
Multi-familyProperty Type
1974Year Built
5,278 sq ftLot Size
$434Est. Price/Sq.Ft.
1 car garageParking
Listed by Zahid Jahania•DRE #01818333• The Money Market Inc
Bought with Abid Aziz•DRE #02013312• The Money Market Inc
bridgeMLS, Bay East AOR, or Contra Costa AOR #40772354
Apr 19, 2017
Sold
$710,000
$306/sq ft
Mar 17, 2017
Pending
—
Mar 6, 2017
Listed
$649,999
$280/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #40705100
Jul 9, 2015
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #40650563
May 15, 2014
Sold
$562,000
$242/sq ft
Mar 31, 2014
Pending
—
Mar 24, 2014
Listed
$550,000
$237/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #40563965
Jun 12, 2012
Sold
$375,000
$162/sq ft
Mar 7, 2012
Pending
—
Mar 1, 2012
Listed
$379,000
$163/sq ft
Public Records
Apr 4, 2012
Sold
$370,000
$159/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #40370876
Mar 24, 2009
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #40139963
Mar 17, 2006
Sold
$750,000
$323/sq ft
Feb 14, 2006
Listing Removed
—
Jan 31, 2006
Listed
$750,000
$323/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$11,666 (+2.6%)
$255,694 + $596,620
$852,314
2024
$11,368 (+2.0%)
$250,680 + $584,922
$835,602
2023
$11,142 (+2.4%)
$245,766 + $573,456
$819,222
2022
$10,876 (+1.2%)
$236,224 + $551,189
$787,413
2021
$10,748 (+1.4%)
$236,224 + $551,189
$787,413
2020
$10,601 (−0.7%)
$231,593 + $540,383
$771,976
2019
$10,679 (+6.4%)
$229,219 + $534,844
$764,063
2018
$10,034 (+20.9%)
$224,726 + $524,361
$749,087
2017
$8,299 (+5.8%)
$178,082 + $415,524
$593,606
2016
$7,847 (+2.9%)
$178,082 + $415,524
$593,606
2015
$7,627 (+46.2%)
$174,590 + $407,377
$581,967
2014
$5,218 (+1.8%)
$113,733 + $265,379
$379,112
2013
$5,126 (+1.3%)
$113,733 + $265,379
$379,112
2012
$5,061
$113,220 + $264,180
$377,400
2011
$5,058 (−9.3%)
$112,500 + $262,500
$375,000
2010
$5,578 (−42.4%)
$112,500 + $262,500
$375,000
2009
$9,680 (+3.4%)
$129,000 + $301,000
$430,000
2008
$9,361
$238,770 + $557,130
$795,900
Tax history for 22442 Ruby St
Year
Property tax
Land + Additions
Assessment*
2025
$11,666 (+2.6%)
$255,694 + $596,620
$852,314
2024
$11,368 (+2.0%)
$250,680 + $584,922
$835,602
2023
$11,142 (+2.4%)
$245,766 + $573,456
$819,222
2022
$10,876 (+1.2%)
$236,224 + $551,189
$787,413
2021
$10,748 (+1.4%)
$236,224 + $551,189
$787,413
2020
$10,601 (−0.7%)
$231,593 + $540,383
$771,976
2019
$10,679 (+6.4%)
$229,219 + $534,844
$764,063
2018
$10,034 (+20.9%)
$224,726 + $524,361
$749,087
2017
$8,299 (+5.8%)
$178,082 + $415,524
$593,606
2016
$7,847 (+2.9%)
$178,082 + $415,524
$593,606
2015
$7,627 (+46.2%)
$174,590 + $407,377
$581,967
2014
$5,218 (+1.8%)
$113,733 + $265,379
$379,112
2013
$5,126 (+1.3%)
$113,733 + $265,379
$379,112
2012
$5,061
$113,220 + $264,180
$377,400
2011
$5,058 (−9.3%)
$112,500 + $262,500
$375,000
2010
$5,578 (−42.4%)
$112,500 + $262,500
$375,000
2009
$9,680 (+3.4%)
$129,000 + $301,000
$430,000
2008
$9,361
$238,770 + $557,130
$795,900
*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
6
Baths
3
Stories
2
Lot width
—
Lot depth
—
Lot size
5,278 Sq. Ft.
Year renovated
1974
Sq. Ft.
2,320
Year built
1974
Style
Multi-Family (2-4 Unit)
County
Alameda County
APN
415 022006401
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Sep 16, 2026.
RSL
Residential Small Lot Districts
Residential Small Lot districts, hereinafter designated as RSL, are established to support infill projects of duplexes, small lot single-family detached units, and townhouses. The RSL district implements and is consistent with the residential small lot land use classification of the Castro Valley General Plan.
Permitted uses
Include but are not limited to:
Agriculture-Other
Housing-Single unit
Housing-Multiple units
Agriculture-Cropland
Agriculture-Grove / orchard / vineyard
Dec 14, 2006 • Final
Building
Replace the subfloor underneath the tub in the upstairs bathroom and the damaged wood underlayment in the downstairs hall bathroom. Replace damaged wood members on the rear exterior balcony and in the roof eaves. A separate contractor will perform the re-roofing of the affected area.
Bathroom
Remodel
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.
Property details
Parking
Parking Information
Total # of Parking Spaces: 4
Has Attached Garage
Parking Features: Garage Door Opener, Attached, Space Per Unit - 2
Home facts updated by county records on Sep 16, 2026
Around this home
Schools
Fairview Elementary School
Public K-6 • Assigned • 1.3mi
2/10
Bret Harte Middle School
Public 7-8 • Assigned • 0.8mi
4/10
Hayward High School
Public 9-12 • Assigned • 0.8mi
5/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
Castro Valley is moving at a brisk pace this summer! Median prices are holding steady around $1.2M, but well-priced, turnkey homes are flying off the market in under 15 days, often over asking. Inventory is moving fast, so buyers must come prepared...