bridgeMLS, Bay East AOR, or Contra Costa AOR #41082234
May 2, 2025
Sold
$1,400,000
$467/sq ft
Mar 6, 2025
Pending
—
Feb 10, 2025
Price Changed
*
Jan 13, 2025
Listed
*
Public Records
Feb 26, 2010
Sold
$630,000
$210/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #40427826
Oct 27, 2009
Listing Removed
—
Oct 6, 2009
Listing Removed
—
Year
Property tax
Land + Additions
Assessment*
2025
$12,580 (+2.7%)
$428,400 + $999,600
$1,428,000
2024
$12,245 (+2.3%)
$243,947 + $569,211
$813,158
2023
$11,968 (+2.6%)
$239,166 + $558,054
$797,220
2022
$11,667 (+2.9%)
$229,880 + $536,388
$766,268
2021
$11,338 (+2.5%)
$229,880 + $536,388
$766,268
2020
$11,060 (−1.5%)
$225,374 + $525,874
$751,248
2019
$11,231 (+3.1%)
$223,065 + $520,485
$743,550
2018
$10,898 (+2.9%)
$218,691 + $510,281
$728,972
2017
$10,592 (+5.0%)
$210,202 + $490,471
$700,673
2016
$10,092 (+7.3%)
$210,202 + $490,471
$700,673
2015
$9,407 (+2.2%)
$206,081 + $480,857
$686,938
2014
$9,204 (+1.7%)
$199,013 + $464,364
$663,377
2013
$9,053 (+2.5%)
$199,013 + $464,364
$663,377
2012
$8,832 (+1.5%)
$198,115 + $462,269
$660,384
2011
$8,702 (+187.4%)
$194,231 + $453,206
$647,437
2010
$3,028 (+1.3%)
$190,423 + $444,320
$634,743
2009
$2,988 (+4.7%)
$84,525 + $51,285
$135,810
2008
$2,854
$84,726 + $51,407
$136,133
Tax history for 20623 Congress Way
Year
Property tax
Land + Additions
Assessment*
2025
$12,580 (+2.7%)
$428,400 + $999,600
$1,428,000
2024
$12,245 (+2.3%)
$243,947 + $569,211
$813,158
2023
$11,968 (+2.6%)
$239,166 + $558,054
$797,220
2022
$11,667 (+2.9%)
$229,880 + $536,388
$766,268
2021
$11,338 (+2.5%)
$229,880 + $536,388
$766,268
2020
$11,060 (−1.5%)
$225,374 + $525,874
$751,248
2019
$11,231 (+3.1%)
$223,065 + $520,485
$743,550
2018
$10,898 (+2.9%)
$218,691 + $510,281
$728,972
2017
$10,592 (+5.0%)
$210,202 + $490,471
$700,673
2016
$10,092 (+7.3%)
$210,202 + $490,471
$700,673
2015
$9,407 (+2.2%)
$206,081 + $480,857
$686,938
2014
$9,204 (+1.7%)
$199,013 + $464,364
$663,377
2013
$9,053 (+2.5%)
$199,013 + $464,364
$663,377
2012
$8,832 (+1.5%)
$198,115 + $462,269
$660,384
2011
$8,702 (+187.4%)
$194,231 + $453,206
$647,437
2010
$3,028 (+1.3%)
$190,423 + $444,320
$634,743
2009
$2,988 (+4.7%)
$84,525 + $51,285
$135,810
2008
$2,854
$84,726 + $51,407
$136,133
*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
Permits
Beds
8
Baths
4
Stories
2
Lot width
—
Lot depth
—
Lot size
5,802 Sq. Ft.
Year renovated
1960
Sq. Ft.
3,000
Year built
1960
Style
Multi-Family (2-4 Unit)
County
Alameda County
APN
084A018104802
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Sep 17, 2026.
Jul 8, 2026 • Final
Building
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: 8
Parking Features: Off Street
Interior
Interior Features
Flooring: Linoleum, Carpet
Multi-Unit Information
Number Of Units Total: 4
Exterior
Building Information
Construction Materials: Stucco
Building Area Total: 3,000
Exterior Features
Exterior Features: Storage
Property Information
Living Area: 3000
Living Area Units: Square Feet
Property Type: Residential Income
Property Sub Type: Quadruplex
Year Built: 1960
Lot Information
Lot Size Square Feet: 5802
Lot Size Area: 0.13
Lot Size Units: Acres
Lot Size Acres: 0.13
Lot Features: Level
Utilities
Heating & Cooling
Has Heating
Heating: Wall Furnace
Cooling: No Air Conditioning
Public facts
Beds: 8
Baths: 4.0
Sq. Ft.: 3,000
Stories: 2.0
Lot Size: 5,802 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1960
Year Renovated: 1960
County: Alameda County
APN: 084A018104802
Home facts updated by county records on Sep 17, 2026
Around this home
Schools
K - 12
Preschool & daycare
Stanton Elementary School
Public K-5 • Assigned • 0.5mi
6/10
Creekside Middle School
Public 6-8 • Assigned • 1.6mi
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 remains a highly competitive market. On average, homes are selling for 103.7% of their asking price, with nearly 60% of properties closing above list price.
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 2025. This data may not match public records. Learn more.