bridgeMLS, Bay East AOR, or Contra Costa AOR #10592672
Jun 25, 1997
Sold
$300,000
$109/sq ft
Apr 12, 1997
Listed
$309,000
$113/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #27592672
Jun 25, 1997
Sold
$300,000
$109/sq ft
Apr 24, 1997
Listing Removed
—
Apr 12, 1997
Listed
$309,000
$113/sq ft
TOP OF CUL-DE-SAC-SUPER QUIET W/SUPERB VIEW BACKS PARK,TRAILS.A '10'-ORIGINAL OWNER,QUA ITY THRUOUT.4 PLUS BDRS, POSS DEN,HUGE FR W
Year
Property tax
Land + Additions
Assessment*
2025
$6,761 (+2.6%)
$149,504 + $353,305
$502,809
2024
$6,590 (+2.0%)
$146,573 + $346,378
$492,951
2023
$6,464 (+2.4%)
$143,699 + $339,587
$483,286
2022
$6,314 (+1.2%)
$138,120 + $326,402
$464,522
2021
$6,241 (+1.3%)
$138,120 + $326,402
$464,522
2020
$6,158
$135,412 + $320,003
$455,415
2019
$6,153 (+6.4%)
$134,024 + $316,723
$450,747
2018
$5,784 (+2.6%)
$131,397 + $306,593
$437,990
2017
$5,640 (+6.0%)
$126,296 + $294,690
$420,986
2016
$5,319 (+2.7%)
$126,296 + $294,690
$420,986
2015
$5,179 (+5.7%)
$123,820 + $288,913
$412,733
2014
$4,900 (+1.2%)
$119,572 + $279,001
$398,573
2013
$4,840 (+2.1%)
$119,572 + $279,001
$398,573
2012
$4,739 (+1.7%)
$119,032 + $277,741
$396,773
2011
$4,661 (+2.2%)
$116,698 + $272,296
$388,994
2010
$4,560 (−1.4%)
$114,410 + $266,958
$381,368
2009
$4,623 (+4.0%)
$113,555 + $264,963
$378,518
2008
$4,446
$113,825 + $265,593
$379,418
Tax history for 21770 Shadyspring Rd
Year
Property tax
Land + Additions
Assessment*
2025
$6,761 (+2.6%)
$149,504 + $353,305
$502,809
2024
$6,590 (+2.0%)
$146,573 + $346,378
$492,951
2023
$6,464 (+2.4%)
$143,699 + $339,587
$483,286
2022
$6,314 (+1.2%)
$138,120 + $326,402
$464,522
2021
$6,241 (+1.3%)
$138,120 + $326,402
$464,522
2020
$6,158
$135,412 + $320,003
$455,415
2019
$6,153 (+6.4%)
$134,024 + $316,723
$450,747
2018
$5,784 (+2.6%)
$131,397 + $306,593
$437,990
2017
$5,640 (+6.0%)
$126,296 + $294,690
$420,986
2016
$5,319 (+2.7%)
$126,296 + $294,690
$420,986
2015
$5,179 (+5.7%)
$123,820 + $288,913
$412,733
2014
$4,900 (+1.2%)
$119,572 + $279,001
$398,573
2013
$4,840 (+2.1%)
$119,572 + $279,001
$398,573
2012
$4,739 (+1.7%)
$119,032 + $277,741
$396,773
2011
$4,661 (+2.2%)
$116,698 + $272,296
$388,994
2010
$4,560 (−1.4%)
$114,410 + $266,958
$381,368
2009
$4,623 (+4.0%)
$113,555 + $264,963
$378,518
2008
$4,446
$113,825 + $265,593
$379,418
*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
4
Baths
2.5
Stories
2
Lot width
—
Lot depth
—
Lot size
7,650
Year renovated
1978
Sq. Ft.
2,741
Year built
1978
Style
Single Family Residential
County
Alameda County
APN
415 020000200
Parking Spaces
2
Basement
No
Accessible
No
HOA Dues
—
Garage
Yes
Features
Views
Last updated by owner on Sep 23, 2023.
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
Oct 14, 2025 • Active
Building
Construct a front porch. Add a new column and a roof over the top of the existing roof.
Addition
May 18, 2020 • Final
Building
Install a roof-mounted solar photovoltaic system on a single-family home.
Electrical
Solar
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
Interior
Bathroom Information
# of Bathrooms Total: 3
# of Bathrooms Full: 2
# of Bathrooms Partial: 1
Interior Features
Interior Features: Formal Dining Room
Flooring: Tile, Carpet, Wood
Room Information
Rooms Total: 9
Exterior
Building Information
Building Area Total: 2,741
Property Information
Living Area: 2741
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1977
Lot Information
Lot Size Square Feet: 0
Lot Size Units: Acres
Utilities
Utility Information
Water Source: Public
Heating & Cooling
Has Heating
Heating: Zoned
Location
School Information
High School District: Acalanes (925) 280-3900
Public facts
Beds: 4
Baths: 2.5
Sq. Ft.: 2,741
Stories: 1.5
Parking Spaces: 2
Basement: No
Accessible: No
Lot Size: 7,650 square feet
Style: Single Family Residential
Year Built: 1978
Year Renovated: 1978
County: Alameda County
APN: 415 020000200
HOA Dues: —
Garage: Yes
Features: Views
Home facts updated by owner on Sep 23, 2023
Around this home
Schools
Fairview Elementary School
Public K-6 • Assigned • 1.6mi
2/10
Bret Harte Middle School
Public 7-8 • Assigned • 1.0mi
4/10
Hayward High School
Public 9-12 • Assigned • 1.1mi
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...
Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 1997. This data may not show owner updates. Learn more.