Alameda County  »  20427 Marshall St

20427 Marshall Street, Castro Valley, CA 94546 Property Information

20427 Marshall Street, Castro Valley, CA 94546 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
Unlock this property report with a free account.

Access up-to-date information from property owner names to sales history, tax info, title documents, mortgages, development, maps, permits and more.
Sign Up Now
Research 100M+ property records powered by:
  • 2000+ governmental and public data sources
  • 80 dedicated analysts and researchers
  • 20+ years of real estate experience
Learn More

Photo & Map Show Hide

20427 Marshall Street, Castro Valley, CA 94546
static Mapbox map

Address

Primary address 20427 Marshall Street, Castro Valley
Zip code 94546
County Alameda
Parcel ID 84C-723-8-1

Sales & Tax Overview for 20427 Marshall Street, Castro Valley

View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.

Property tax $38,158

Lot & Building Information for 20427 Marshall Street, Castro Valley

Building sqft 16,024
Building class Multiple Residential Building of 5 or More Units (7700)
Acreage 1.12
Rooms 88
Units 24
Year built 1962
Stories 2
Construction type Wood/wood and steel frames
Elevator
Parking
Unlock this property report with a free account.

Access up-to-date information from property owner names to sales history, tax info, title documents, mortgages, development, maps, permits and more.
Sign Up Now

Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district
School district Castro Vly Unif SCH

View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.

Other Property Data for 20427 Marshall Street, Castro Valley

Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:

  • • Improvements for 20427 Marshall Street, Castro Valley , including their type, square footage, grade and when they were built.
  • Development maps such as planimetric, zoning, land use and urban landscape maps (building age and stories).
Unlock all property data with a free account.
Sign up

About 20427 Marshall Street, Castro Valley

What is the year built & the total sq. ft. for 20427 Marshall Street, Castro Valley, CA 94546?

20427 Marshall Street, Castro Valley, CA 94546 was built in 1962 and has a total of 16,024 square feet.

What is the assessed value of 20427 Marshall Street, Castro Valley, CA 94546 and the property tax paid?

Assessed at $3,278,151, the tax amount paid for 20427 Marshall Street, Castro Valley, CA 94546 is $38,157.

When was 20427 Marshall Street, Castro Valley, CA 94546 last sold?

20427 Marshall Street, Castro Valley, CA 94546 was last sold in 01/09/2004.

How many residential units does this building have?

This building has 24 residential unit(s).

Ownership Information

View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.

Real Estate Reports:
Laura Pop-Badiu, May 07, 2026 Locked-In Owners, Mobile Renters: Homeowners Stay Put as Renters Move 3.7x More Across Largest U.S. Cities 
Renters became the primary drivers of long-distance mobility across the largest U.S. cities, moving 3.7 times more than owners in 2024, as high mortgage rates and housing costs kept many homeowners in place.
Eliza Theiss, Apr 23, 2026 $4.6M Hudson Yards Maintains Top Spot, Luxury Sales in Malba Set $2.5M Price Record for Queens
Despite prices declining, Hudson Yards remained the most expensive NYC neighborhood, but TriBeCa’s growth closed the gap to under $400,000, while Malba set a new historic price record for Queens at $2.5 million, securing the highest ranking ever for the borough at #5.
Eliza Theiss, Apr 15, 2026 2026 Q1 Foreclosure Report: Brooklyn Filings Fall Sharply, Bronx & Staten Island Hit New Peaks
Behind a deceptively mild citywide downtick, borough foreclosure markets pulled into significantly diverging paths as Brooklyn cases were nearly halved and the Bronx hit a new, record high. Meanwhile, Queens remained unchanged, Staten Island surged back up and Manhattan cooled slowly.
Research 100M+ property records powered by:
  • 2000+ governmental and public data sources
  • 80 dedicated analysts and researchers
  • 20+ years of real estate experience
Learn More

Past Sales & Property History for 20427 Marshall Street, Castro Valley

Create a free account to view the complete sales history for 20427 Marshall Street, Castro Valley, including title documents, transfer conditions, mortgages and liens.

No recorded sales for this property.

Title Documents for 20427 Marshall Street, Castro Valley

To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.

Date Type Amount Party 1 Party 2 Maturity Document Doc image
01/31/2014 Assignment Lease
Deed of Trust
Ucc Fin STMT(1-2 PGS)
08/21/2013 Easement
07/17/2013 Assignment (Deed of Trust)
01/09/2004 Deed
02/14/1997 Deed
Unlock title documents, including buyer and seller information (when available).
Sign up

R: Recorded date
D: Document date

Property Taxes for 20427 Marshall Street, Castro Valley

Access detailed property tax data for 20427 Marshall Street, Castro Valley, CA 94546. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Property tax $38,158
Market value $3,278,151

Assessment History for 20427 Marshall Street, Castro Valley

Here's the assessment & property tax history for 20427 Marshall Street, Castro Valley, including the evolution of the total tax rate and corresponding property tax.

Year Assessment value Total tax rate Property tax Year over year change
2025-2026 $3,278,151 1.164 $38,158 +0.69%
2024-2025 $3,213,880 1.1791 $37,895 -48.84%
2023-2024 $3,150,868 2.3508 $74,071 +130.20%
2022-2023 $2,702,089 1.1908 $32,176 +17.03%
2021-2022 $2,320,683 1.1848 $27,495 +1.93%

Permits for 20427 Marshall Street, Castro Valley

The complete history of permits filed for 20427 Marshall Street, Castro Valley, including new construction or demolition permits, plus any work pertaining to plumbing, heating and sprinkler systems is available with a free account. Available data goes back to 1990.

Issued Permit Type Status
12/05/2019
10/05/2017
Unlock the permit history for 20427 Marshall Street, Castro Valley with a free account.
Sign up

Castro Valley residential market stats

Median Sale Price
$989,000
-8.4% YoY
Median Price/Sqft
$669
3.4% YoY
Alameda County Median Sale Price
$965,000
-7.1% YoY

Access a detailed real estate market overview of Castro Valley so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Castro Valley and compare it to other neighborhoods in Alameda County.

Check out recently sold homes in Castro-Valley and see how their prices compare.

Demographics by Zip Code

Total population 44,855
Median age 41.7
Average household income $161,274
Family households 74.3%
Occupied housing units 15,565
Owner occupied units 66.3%
Average number of people per household 2.84
Median year structure built 1960
Median value for units with a mortgage $1,065,100
Median value for units without a mortgage $995,000

Risk

Create a free account to unlock extended information for 20427 Marshall Street, Castro Valley, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).

FEMA flood zone(s) 0.2, X (See more on map)
Fire hazard zone See more on map
Faults and tsunami inundation zone map
Landslides and liquefaction map

Transportation

Access the detailed traffic volume map for 20427 Marshall Street, Castro Valley to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

View daily traffic map

Neighbors for 20427 Marshall Street, Castro Valley

Here are the neighbors for 20427 Marshall Street, Castro Valley.

Address Square feet Purchase date Purchase price
20643 Maria CT, Castro Valley 1,569 02/13/2020
20276 Catalina Dr, Castro Valley 1,274 10/04/2023
3816 Vincent CT, Castro Valley 1,081 06/21/2024 $850,000
20589 Yeandle Ave, Castro Valley 1,068 05/24/2024
20655 Maria CT, Castro Valley 1,266 12/07/2021 $840,000
20218 Catalina Dr, Castro Valley 1,265 11/04/2014
20662 Maria CT, Castro Valley 1,266 02/04/2002 $316,000
20142 Meadowlark Dr, Castro Valley 1,399
20549 Marshall St, Castro Valley 1,894 09/03/1997
20651 Maria CT, Castro Valley 1,266 04/16/2010 $355,000
4109 Nichandros St, Castro Valley 1,380 05/27/2014
20290 Catalina Dr, Castro Valley 1,274 11/09/2023
20658 Maria CT, Castro Valley 1,569 07/07/2022 $859,000
20671 Forest Ave, Castro Valley 1,283
20639 Maria CT, Castro Valley 1,266 09/23/2020
20559 Forest Ave, Castro Valley 10,590 09/20/2013 $1,800,000
20295 Marshall St, Castro Valley 1,184 10/27/2016
20649 Yeandle Ave, Castro Valley 1,292 05/16/2023 $1,030,000
20675 Maria CT, Castro Valley 1,266 09/16/2019 $184,000
20497 Yeandle Ave, Castro Valley 2,004 05/12/2021

Nearby ZIP Codes for 20427 Marshall Street, Castro Valley

Not sure if we cover all the data-points you need? View sample full report View sample full report