Alameda County  »  94546  »  Carlton Ave  »  18930 Carlton Ave

18930 Carlton Avenue, Castro Valley, CA 94546 - Property report

Also known as: 18930 Carlton Ave

Property image for 18930 Carlton Avenue, Castro Valley, CA 94546
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Property type

Single Family Residential Homes Used as Such (1100)

Year built

1952

Acreage

0.17

Sale price

$850,000

General Information

Address
Primary address
18930 Carlton Ave
Castro Valley, CA 94546
Zip code
94546
County
Alameda
Parcel ID
84B-501-59

Owner

Find out who owns 18930 Carlton Avenue, Castro Valley, CA 94546. Uncover corporate and individual owners with a free account.

Sales
Sale date
05/02/2025
Sale price
$850,000
Arm's length
Tax
Tax year
2025-2026
Property tax
$3,741
Tax per sq. ft.
$5
Building
Property type
Single Family Residential Homes Used as Such
Building sq. ft.
720
Stories
1
Year built
1952
Building material
Wood/wood and steel frames
Rooms
4
Elevator
Bedrooms
2
Bathrooms
1
Lot
Acreage
0.17
Zoning & use
Zoning
Single Family Residential (R1-CSU-RV)
Units
1

Area overview

Walk score
49 /100.  Car-Dependent
Transit score
27 /100.  Some Transit
Bike score
16 /100.  Somewhat Bikeable
School district
CASTRO VLY UNIF SCH
Ownership

Ownership information for 18930 Carlton Avenue, Castro Valley, CA

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

Sales history for 18930 Carlton Avenue, Castro Valley, CA 94546

Sale date Sale price Buyer name Seller name
05/02/2025 $850,000 XX XXXXXXXX XXXXX XXXXXXX XXXXXX XXXXX; XXXXXXXX XXXXXXX X XXXXX; XXXXXXXX XXXXXXX X XX; XXXXXXX XXXXXX XXX XX; XXXXX XXXXXX XXXXX XX; XXXXX XXXXXX X XXXXX; XXXXX XXXXXX X XX
04/01/2010 $249,000 XXXXX, XXXXXX X & XXXXXX X XXXX XXXXXX XXXXX
06/10/1992 $169,000 XXXXXX, XXXXX X XXXXX XXXXXXXX, XXXXXX

*Most recent sales on record for this property.

More about Alameda County property records.

Title documents

Date Type Amount Party 1 Party 2
11/19/2025 Deed of trust XX XXXXXXXX XXXX XXXX
05/02/2025 Deed of trust XX XXXXXXXX XXXX XXXX
05/02/2025 Grant Deed XXXXX XXXXXXX XXXXXX XXXXX XX XXXXXXXX
06/22/2016 Grant Deed XXXXX XXXXXX X XXXXX XXXXXXX XXXXXX XXXXX
06/22/2016 Deed of Trust XXXXX XXXXXX X XXXX XXXX
06/22/2016 Grant Deed XXXXX XXXXXX X XX XX XXXXX XXXXXX X
06/22/2016 Declaration Trust XXXXX XXXXXX X XXXXX XXXXXX X XX
04/01/2010 Deed XXXXXX XXXXX XXXXX, XXXXXX X & XXXXXX X XXXX
11/19/1998 Deed XXXXXX XXXXX XXXXXX XXXXX
06/26/1998 Deed XXXXXX, XXXX X & XXXXX X XXXXXX XXXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 18930 Carlton 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
2025-2026
Property tax
$3,741
Tax per sq. ft.
$5
Recent tax assessments
Market value
$321,391
Land value
$96,417
Building value
$224,974

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 $321,391 1.164 $3,741 +0.69%
2024-2025 $315,091 1.1791 $3,715 -48.84%
2023-2024 $308,914 2.3508 $7,262 +101.36%
2022-2023 $302,858 1.1908 $3,606 +2.51%
2021-2022 $296,921 1.1848 $3,518 +2.29%
2020-2021 $293,878 1.1703 $3,439 -1.51%
2019-2020 $288,117 1.212 $3,492 +2.36%
2018-2019 $282,470 1.2077 $3,411 +2.65%
2017-2018 $276,931 1.2001 $3,323 +18.54%
2016-2017 $271,504 1.0326 $2,804 -5.16%
Permits

Permit information for 18930 Carlton Avenue, 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 18930 Carlton 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)
Anchor Education, Inc. School NR Private 3-12 0 0.33
Chabot Elementary School 8 Public K-5 470 0.33
Sterling West San Francisco Campus NR Private 3-11 27 0.33
Anchor Education, Inc. NR Private 3-12 18 0.34
Castro Valley Virtual Academy 7 Public K-12 67 0.44
Stanton Elementary School 6 Public K-5 492 0.48
Camelot School NR Private K 14 0.74
Our Lady Of Grace School NR Private K-8 218 0.81
Castro Valley Elementary School 6 Public K-5 472 0.96
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Anchor Education, Inc. School NR Private 3-12 0 0.33
Sterling West San Francisco Campus NR Private 3-11 27 0.33
Anchor Education, Inc. NR Private 3-12 18 0.34
Castro Valley Virtual Academy 7 Public K-12 67 0.44
Our Lady Of Grace School NR Private K-8 218 0.81
Seneca Family Of Agencies - James Baldwin Academy NR Private 4-12 75 0.92
Alma Preschool NR Public 52 1.28
Castro Valley Adult And Career Education NR Public 0 1.31
Edendale Middle School 2 Public 6-8 500 1.49
Creekside Middle School 8 Public 6-8 760 1.94
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Anchor Education, Inc. School NR Private 3-12 0 0.33
Sterling West San Francisco Campus NR Private 3-11 27 0.33
Anchor Education, Inc. NR Private 3-12 18 0.34
Roy A. Johnson High School NR Public 9-12 24 0.44
Castro Valley Virtual Academy 7 Public K-12 67 0.44
Redwood Continuation High School 3 Public 9-12 122 0.44
Seneca Family Of Agencies - James Baldwin Academy NR Private 4-12 75 0.92
Castro Valley High School 9 Public 9-12 2,799 0.97
Redwood Christian Schools NR Private K-12 706 1.19
Alma Preschool NR Public 52 1.28

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

Neighbors for 18930 Carlton Avenue, Castro Valley, CA

18803 Huber Dr, Castro Valley 18966 Carlton Ave, Castro Valley 18764 Carlton Ave, Castro Valley 18938 Carlton Ave, Castro Valley 18954 Carlton Ave, Castro Valley 3018 Keith Ave, Castro Valley 18992 Carlton Ave, Castro Valley 3235 Sydney Way, Castro Valley 3026 Keith Ave, Castro Valley 18901 Natalie CT, Castro Valley 18910 Carlton Ave, Castro Valley 3243 Sydney Way, Castro Valley 18980 Carlton Ave, Castro Valley 18985 Natalie CT, Castro Valley 18913 Natalie CT, Castro Valley 18709 Lake Chabot Rd, Castro Valley 18733 Lake Chabot Rd, Castro Valley 18801 Huber Dr, Castro Valley 18998 Carlton Ave, Castro Valley 18973 Natalie CT, Castro Valley

Nearby ZIP codes for 18930 Carlton Avenue, Castro Valley, CA

94542, Alameda County, CA 94579, Alameda County, CA 94601, Alameda County, CA 94613, Alameda County, CA 94619, Alameda County, CA

Frequently asked questions

What is the year built for 18930 Carlton Avenue, Castro Valley, CA 94546?

The development at 18930 Carlton Avenue, Castro Valley, CA 94546 was built in 1952.

What is the total square footage of 18930 Carlton Avenue, Castro Valley, CA 94546?

18930 Carlton Avenue, Castro Valley, CA 94546 has a total of 720 square feet.

When was 18930 Carlton Avenue, Castro Valley, CA 94546 last sold and what was the sale price?

18930 Carlton Avenue, Castro Valley, CA 94546 was last sold on 05/02/2025 for $850,000.

What is the assessed value of 18930 Carlton Avenue, Castro Valley, CA 94546?

18930 Carlton Avenue, Castro Valley, CA 94546 is currently assessed at $321,391.

What are the property taxes for 18930 Carlton Avenue, Castro Valley, CA 94546?

The property taxes for 18930 Carlton Avenue, Castro Valley, CA 94546 total $3,740.

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