Alameda County  »  94546  »  Opal CT  »  20019 Opal CT

20019 Opal Court, Castro Valley, CA 94546 - Property report

Also known as: 20019 Opal CT

Property image for 20019 Opal Court, Castro Valley, CA 94546
static Mapbox map

Property type

Single Family Residential Homes Used as Such (1100)

Year built

1947

Acreage

1.29

General Information

Address
Primary address
20019 Opal Ct
Castro Valley, CA 94546
Zip code
94546
County
Alameda
Parcel ID
84C-669-63

Owner

Find out who owns 20019 Opal Court, Castro Valley, CA 94546. Uncover corporate and individual owners with a free account.

Tax
Tax year
2026-2027
Base tax
$844
Current property tax
$763
Tax per sq. ft.
$1
Building
Property type
Single Family Residential Homes Used as Such
Building sq. ft.
1,080
Stories
10
Year built
1947
Building material
Wood/wood and steel frames
Rooms
6
Elevator
Bedrooms
3
Bathrooms
10
Lot
Acreage
1.29
Zoning & use
Zoning
Single Family Residential (R1-CSU-RV)
Units
1

Area overview

Walk score
68 /100.  Somewhat Walkable
Transit score
33 /100.  Some Transit
Bike score
43 /100.  Somewhat Bikeable
School district
CASTRO VLY UNIF SCH
Ownership

Ownership information for 20019 Opal Court, Castro Valley, CA

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

Sales history for 20019 Opal Court, Castro Valley, CA 94546

No recently recorded sales for this property.

More about Alameda County property records.

Title documents

Date Type Amount Party 1 Party 2
07/18/2025 Grant Deed XXXX XXXX X XXXX XXXX X
10/20/2014 Grant Deed XXXXXXXXX XXXXX X XX XXXX XXXX XXXXXXXXX
08/25/2014 Grant Deed XXXXXXXXX XXXXX X XXXX XXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 20019 Opal Court, 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
$844
Current property tax
$763
Tax per sq. ft.
$1
Recent tax assessments
Market value
$72,523
Land value
$39,763
Building value
$32,760

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 $71,101 1.164 $828 +0.69%
2024-2025 $69,707 1.1791 $822 -48.84%
2023-2024 $68,340 2.3508 $1,607 +101.36%
2022-2023 $67,001 1.1908 $798 +2.55%
2021-2022 $65,686 1.1848 $778 +2.25%
2020-2021 $65,013 1.1703 $761 -1.51%
2019-2020 $63,738 1.212 $773 +2.36%
2018-2019 $62,489 1.2077 $755 +2.65%
2017-2018 $61,264 1.2001 $735 +18.55%
2016-2017 $60,063 1.0326 $620 -5.16%
Permits

Permit information for 20019 Opal Court, Castro Valley, CA

No recently recorded permits 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
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 20019 Opal Court, 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 0.19
Early Bird Montessori School NR Private PK, K-1 30 0.40
Early Bird Montessori School NR Private PK, K-1 30 0.40
Independent Elementary School 8 Public K-5 634 0.66
Vannoy Elementary School 7 Public K-5 441 0.67
Redwood Christian Elementary School NR Private K-5 282 0.79
Northstar School NR Private PK-8 152 0.80
Northstar School NR Private PK-8 152 0.80
Castro Valley Adult And Career Education NR Public 0 0.83
Special Education-Preschool-Laurel NR Public 1 0.85
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Creekside Middle School 8 Public 6-8 760 0.14
Canyon Middle School 6 Public 6-8 1,332 0.79
Northstar School NR Private PK-8 152 0.80
Castro Valley Adult And Career Education NR Public 0 0.83
Special Education-Preschool-Laurel NR Public 1 0.85
Redwood Christian Schools NR Private K-12 706 0.86
Alma Preschool NR Public 52 0.87
Our Lady Of Grace School NR Private K-8 218 1.14
Stellar Preparatory High School NR Private 9 0 1.53
Anchor Education, Inc. NR Private 3-12 18 1.55
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Castro Valley Adult And Career Education NR Public 0 0.83
Special Education-Preschool-Laurel NR Public 1 0.85
Redwood Christian Schools NR Private K-12 706 0.86
Alma Preschool NR Public 52 0.87
Castro Valley High School 9 Public 9-12 2,799 0.96
Stellar Preparatory High School NR Private 9 0 1.53
Anchor Education, Inc. NR Private 3-12 18 1.55
Sterling West San Francisco Campus NR Private 3-11 27 1.56
Anchor Education, Inc. School NR Private 3-12 0 1.57
Hayward High School 5 Public 9-12 1,712 1.87

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

Neighbors for 20019 Opal Court, Castro Valley, CA

20078 Topaz CT, Castro Valley 4254 Gem Ave, Castro Valley 20139 Normandy CT, Castro Valley 20052 Opal CT, Castro Valley 20051 Center St, Castro Valley 20173 Brittany CT, Castro Valley 4160 Veronica Ave, Castro Valley 4227 Veronica Ave, Castro Valley 4347 Omega Ave, Castro Valley 20074 Opal CT, Castro Valley 4167 Veronica Ave, Castro Valley 19929 Center St, Castro Valley 20073 Center St, Castro Valley 4162 David St, Castro Valley 4150 David St, Castro Valley 4260 Gem Ave, Castro Valley 4183 Veronica Ave, Castro Valley 4135 Veronica Ave, Castro Valley 4215 Veronica Ave, Castro Valley 20114 Normandy CT, Castro Valley

Nearby ZIP codes for 20019 Opal Court, 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 20019 Opal Court, Castro Valley, CA 94546?

The development at 20019 Opal Court, Castro Valley, CA 94546 was built in 1947.

What is the total square footage of 20019 Opal Court, Castro Valley, CA 94546?

20019 Opal Court, Castro Valley, CA 94546 has a total of 1,080 square feet.

What is the assessed value of 20019 Opal Court, Castro Valley, CA 94546?

20019 Opal Court, Castro Valley, CA 94546 is currently assessed at $71,101.

What are the property taxes for 20019 Opal Court, Castro Valley, CA 94546?

The property taxes for 20019 Opal Court, Castro Valley, CA 94546 total $827.

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