Alameda County  »  6421 Sunnyslope Ave

6421 Sunnyslope Avenue, Castro Valley, CA 94552 Property Information

6421 Sunnyslope Avenue, Castro Valley, CA 94552 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

6421 Sunnyslope Avenue, Castro Valley, CA 94552
static Mapbox map

Address

Primary address 6421 Sunnyslope Avenue, Castro Valley
Zip code 94552
County Alameda
Parcel ID 85A-1550-4-28

Sales & Tax Overview for 6421 Sunnyslope Avenue, Castro Valley

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

Sale date 11/19/2003
Sale price $587,000
Arm's length
Current property tax $18,055

Lot & Building Information for 6421 Sunnyslope Avenue, Castro Valley

Building sqft 4,183
Total sqft 4,183
Building class Improved Rural-Residential Homesite (5100)
Acreage 5.36
Buildings on lot 2
Rooms 9
Units 1
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 6421 Sunnyslope Avenue, 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 6421 Sunnyslope Avenue, 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 6421 Sunnyslope Avenue, Castro Valley

How many square feet does 6421 Sunnyslope Avenue, Castro Valley, CA 94552 have?

This Improved Rural-Residential Homesite (5100) located at 6421 Sunnyslope Avenue, Castro Valley, CA 94552 has a total of 4,183 square feet.

What is the year built & the current market value of 6421 Sunnyslope Avenue, Castro Valley, CA 94552?

6421 Sunnyslope Avenue, Castro Valley, CA 94552 was built in 1962 and has a current tax assessor's market value of $1,558,112.

How many commercial spaces does this building have?

This building has 1 commercial spaces available for lease.

Ownership Information

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

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 6421 Sunnyslope Avenue, Castro Valley

Create a free account to view the complete sales history for 6421 Sunnyslope Avenue, Castro Valley, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
11/19/2003 $587,000
10/17/1994 $250,000
       
       
       
Access the complete sales history for 6421 Sunnyslope Avenue, Castro Valley with a free account.
Sign up

Title Documents for 6421 Sunnyslope Avenue, 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
03/11/2025 Reconveyance
Substitution of trustee
03/05/2015 Deed of Trust 03/03/2045
09/12/2013 Trust Transfer Grant Deed
11/19/2003 Deed
06/11/1999 Deed
10/17/1994 Deed
12/29/1992 Deed
Unlock title documents, including buyer and seller information (when available).
Sign up

R: Recorded date
D: Document date

Property Taxes for 6421 Sunnyslope Avenue, Castro Valley

Access detailed property tax data for 6421 Sunnyslope Avenue, Castro Valley, CA 94552. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Base tax $18,136
Current property tax $18,055
Market value $1,558,112

Assessment History for 6421 Sunnyslope Avenue, Castro Valley

Here's the assessment & property tax history for 6421 Sunnyslope Avenue, 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 $1,558,112 1.164 $18,136 +0.69%
2024-2025 $1,527,566 1.1791 $18,012 -48.84%
2023-2024 $1,497,618 2.3508 $35,206 +101.36%
2022-2023 $1,468,258 1.1908 $17,484 +2.52%
2021-2022 $1,439,479 1.1848 $17,055 +2.29%

Permits for 6421 Sunnyslope Avenue, Castro Valley

The complete history of permits filed for 6421 Sunnyslope Avenue, 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
12/06/2019
       
       
       
Unlock the permit history for 6421 Sunnyslope Avenue, 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 14,506
Median age 48.9
Average household income $225,929
Family households 83.9%
Occupied housing units 5,021
Owner occupied units 93.2%
Average number of people per household 2.87
Median year structure built 1988
Median value for units with a mortgage $1,492,900
Median value for units without a mortgage $1,198,700

Risk

Create a free account to unlock extended information for 6421 Sunnyslope Avenue, 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) 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 6421 Sunnyslope Avenue, 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 6421 Sunnyslope Avenue, Castro Valley

Here are the neighbors for 6421 Sunnyslope Avenue, Castro Valley.

Address Square feet Purchase date Purchase price
19383 Brusk CT, Castro Valley 1,640 09/01/2022
5929 Charter Oaks Dr, Castro Valley 1,629 08/20/2019
2532 Ridge Crest CT, Castro Valley 2,490 03/17/2000 $484,000
18628 Madison Ave, Castro Valley 1,040 09/12/2025 $800,000
19380 Buren Pl, Castro Valley 2,251 08/01/2013 $665,000
19613 Lake Chabot Rd, Castro Valley 3,358 09/17/2020
4527 Heyer Ave, Castro Valley 1,835 08/27/2020 $970,000
19528 Barlow CT, Castro Valley 2,761 05/11/2020
18608 Crest Ave, Castro Valley 2,300 04/25/2001
2393 Carter Ln, Castro Valley 2,192 06/29/2001 $624,000
2512 Ridge Crest CT, Castro Valley 2,490 02/23/2021
8000 Crow Canyon Rd, Castro Valley 3,488 04/02/2025
2508 Ridge Crest CT, Castro Valley 2,490 12/01/2025
19050 Buren Pl, Castro Valley 1,887 06/28/2019
4529 Heyer Ave, Castro Valley 1,835 11/03/2016
2526 Ridge Crest CT, Castro Valley 2,490 05/24/2013 $750,000
19061 Stanton Ave, Castro Valley 3,242 10/01/1999 $470,000
4975 Fraga Rd, Castro Valley 2,836 08/19/2022
20121 San Miguel Ave, Castro Valley 08/16/1999
5933 Charter Oaks Dr, Castro Valley 1,645 04/07/2023 $1,400,500

Nearby ZIP Codes for 6421 Sunnyslope Avenue, Castro Valley

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