Alameda County  »  94546  »  Forest Ave  »  20670 Forest Ave

20670 Forest Avenue, Castro Valley, CA 94546 - Property report

Also known as: 20670 Forest Ave

Property image for 20670 Forest Avenue, Castro Valley, CA 94546
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Property type

Single Family Residential Homes Used as Such (1100)

Year built

1941

Acreage

1.62

Sale price

$505,500

General Information

Address
Primary address
20670 Forest Ave
Castro Valley, CA 94546
Zip code
94546
County
Alameda
Parcel ID
84C-716-9

Owner

Find out who owns 20670 Forest Avenue, Castro Valley, CA 94546. Uncover corporate and individual owners with a free account.

Sales
Sale date
11/26/2014
Sale price
$505,500
Arm's length
Tax
Tax year
2026-2027
Base tax
$7,206
Current property tax
$7,124
Tax per sq. ft.
$5
Building
Property type
Single Family Residential Homes Used as Such
Building sq. ft.
1,470
Stories
10
Year built
1941
Building material
Wood/wood and steel frames
Rooms
7
Elevator
Bedrooms
3
Bathrooms
20
Lot
Acreage
1.62
Zoning & use
Zoning
Suburban Residential (R-S-D-20)

Area overview

Walk score
78 /100.  Very Walkable
Transit score
41 /100.  Some Transit
Bike score
62 /100.  Bikeable
School district
CASTRO VLY UNIF SCH
Ownership

Ownership information for 20670 Forest Avenue, Castro Valley, CA

Property owner name
Registered owner
Source
Deed
Owner contact information
Phone number
Owner address
Documents

Sales history for 20670 Forest Avenue, Castro Valley, CA 94546

Sale date Sale price Buyer name Seller name
11/26/2014 $505,500 XXXX XX; XXXXX XXXXXX XXXXX XXXXXXX X; XXXXX XXXXX X
05/15/2013 $490,000 XXXXX XXXXXXX X; XXXXX XXXXX X XXXXX XXXXXX XXXXXXX XX; XXXXX XXXXX XXXX XXXXX; XXXXX XXXXX XXXX XX; XXXXX XXXXXX XXXXXXX XXXXX

*Most recent sales on record for this property.

More about Alameda County property records.

Title documents

Date Type Amount Party 1 Party 2
08/25/2015 Deed of Trust XXXX XX XXXXXXX XXX
11/26/2014 Deed of Trust XXXX XX XXXXXXX XXX
11/26/2014 Grant Deed XXXXX XXXXXXX X XXXX XX
05/15/2013 Deed of Trust XXXXX XXXXXXX X XXXX
05/15/2013 Grant Deed XXXXX XXXXXX XXXXXXX XX XXXXX XXXXXXX X
05/15/2013 Declaration Trust XXXXX XXXXXX XXXXXXX XXXXX XXXXXX XXXXXXX XX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 20670 Forest Avenue, Castro Valley, CA

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

Current property tax
Tax year
2026-2027
Base tax
$7,206
Current property tax
$7,124
Tax per sq. ft.
$5
Recent tax assessments
Market value
$619,048
Land value
$208,392
Building value
$410,656

More about Alameda County Property Taxes

Assessment history

See the assessment and property tax history, including the evolution of the total tax rate and corresponding property tax amount.

Tax year Assessed value Tax rate Property tax Y-o-Y change
2025-2026 $606,913 1.164 $7,064 +0.69%
2024-2025 $595,015 1.1791 $7,016 -48.84%
2023-2024 $583,350 2.3508 $13,713 +101.36%
2022-2023 $571,912 1.1908 $6,810 +2.52%
2021-2022 $560,701 1.1848 $6,643 +2.28%
2020-2021 $554,954 1.1703 $6,495 -1.51%
2019-2020 $544,076 1.212 $6,594 +2.36%
2018-2019 $533,411 1.2077 $6,442 +2.65%
2017-2018 $522,952 1.2001 $6,276 +18.55%
2016-2017 $512,700 1.0326 $5,294 -5.16%
Permits

Permit information for 20670 Forest Avenue, Castro Valley, CA

Issued date Permit number Permit type Sub type Valuation Finaled date Status
07/31/2024
05/20/2021

*Most recent permits on record for this property.

Neighborhood

Castro Valley residential market stats

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.

Median sale price

$1,013,750

-2.9% Y-o-Y

Median price/sq. ft.

$619

-9.8% Y-o-Y

Alameda county median sale price

$955,000

-6.4% Y-o-Y

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

Risk

Create a free account to unlock expanded risk information, such as crime incidents in the area, tsunami and landslides risks, or its location relative to FEMA flood zones and the Coastal Barriers Resources System Area (COBRA).

FEMA flood zones

FEMA flood zones
0.2, X
Landslides and liquefaction map

Fire hazard zones

Faults and tsunami inundation zones map

Transportation

Daily traffic map
View daily traffic map

Access the detailed traffic volume map for 20670 Forest Avenue, Castro Valley, CA 94546 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
Marshall Elementary School 9 Public K-5 491 0.25
Special Education-Preschool-Laurel NR Public 1 0.56
Early Bird Montessori School NR Private PK, K-1 30 0.67
Early Bird Montessori School NR Private PK, K-1 30 0.67
Vita Academy NR Private 1-6 0 0.73
Castro Valley Elementary School 6 Public K-5 472 0.75
Redwood Christian Elementary School NR Private K-5 282 0.76
Redwood Christian Schools NR Private K-12 706 0.86
Castro Valley Adult And Career Education NR Public 0 0.89
Alma Preschool NR Public 52 0.90
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Creekside Middle School 8 Public 6-8 760 0.51
Special Education-Preschool-Laurel NR Public 1 0.56
Redwood Christian Schools NR Private K-12 706 0.86
Our Lady Of Grace School NR Private K-8 218 0.88
Castro Valley Adult And Career Education NR Public 0 0.89
Alma Preschool NR Public 52 0.90
Northstar School NR Private PK-8 152 0.93
Canyon Middle School 6 Public 6-8 1,332 1.16
Stellar Preparatory High School NR Private 9 0 1.27
Anchor Education, Inc. NR Private 3-12 18 1.34
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Special Education-Preschool-Laurel NR Public 1 0.56
Castro Valley High School 9 Public 9-12 2,799 0.84
Redwood Christian Schools NR Private K-12 706 0.86
Castro Valley Adult And Career Education NR Public 0 0.89
Alma Preschool NR Public 52 0.90
Stellar Preparatory High School NR Private 9 0 1.27
Anchor Education, Inc. NR Private 3-12 18 1.34
Sterling West San Francisco Campus NR Private 3-11 27 1.35
Anchor Education, Inc. School NR Private 3-12 0 1.35
Hayward High School 5 Public 9-12 1,712 1.68

Data provided by GreatSchools.org © 2026. All rights reserved.

Neighbors for 20670 Forest Avenue, Castro Valley, CA

9990 Crow Canyon Rd, Castro Valley 25180 Palomares Rd, Castro Valley 19388 Lake Chabot Rd, Castro Valley 20668 Forest Ave, Castro Valley 4868 Proctor Rd, Castro Valley 4008 E Castro Valley Blvd, Castro Valley 25030 Palomares Rd, Castro Valley 21019 Baker Rd, Castro Valley 22083 Betlen Way, Castro Valley

Nearby ZIP codes for 20670 Forest Avenue, Castro Valley, CA

94541, Alameda County, CA 94542, Alameda County, CA 94544, Alameda County, CA 94545, Alameda County, CA 94552, Alameda County, CA 94577, Alameda County, CA 94578, Alameda County, CA 94579, Alameda County, CA 94580, Alameda County, CA 94601, Alameda County, CA 94603, Alameda County, CA 94605, Alameda County, CA 94613, Alameda County, CA 94619, Alameda County, CA 94621, Alameda County, CA

Frequently asked questions

What is the year built for 20670 Forest Avenue, Castro Valley, CA 94546?

The development at 20670 Forest Avenue, Castro Valley, CA 94546 was built in 1941.

What is the total square footage of 20670 Forest Avenue, Castro Valley, CA 94546?

20670 Forest Avenue, Castro Valley, CA 94546 has a total of 1,470 square feet.

When was 20670 Forest Avenue, Castro Valley, CA 94546 last sold and what was the sale price?

20670 Forest Avenue, Castro Valley, CA 94546 was last sold on 11/26/2014 for $505,500.

What is the assessed value of 20670 Forest Avenue, Castro Valley, CA 94546?

20670 Forest Avenue, Castro Valley, CA 94546 is currently assessed at $619,048.

What are the property taxes for 20670 Forest Avenue, Castro Valley, CA 94546?

The property taxes for 20670 Forest Avenue, Castro Valley, CA 94546 total $7,205.

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