Alameda County  »  94552  »  Greenridge CT  »  18540 Greenridge CT

18540 Greenridge Court, Castro Valley, CA 94552 - Property report

Also known as: 18540 Greenridge CT

Property image for 18540 Greenridge Court, Castro Valley, CA 94552
static Mapbox map

Property type

2 Units, Single Family Residence with Detattched Accessory Dwelling Unit (2502)

Year built

1976

Acreage

0.29

Sale price

$577,000

General Information

Address
Primary address
18540 Greenridge Ct
Castro Valley, CA 94552
Zip code
94552
County
Alameda
Parcel ID
85-1613-21

Owner

Find out who owns 18540 Greenridge Court, Castro Valley, CA 94552. Uncover corporate and individual owners with a free account.

Sales
Sale date
12/11/2013
Sale price
$577,000
Arm's length
Tax
Tax year
2025-2026
Base tax
$11,699
Current property tax
$11,617
Tax per sq. ft.
$7
Building
Property type
2 Units, Single Family Residence with Detattched Accessory Dwelling Unit
Building sq. ft.
1,723
Stories
1
Year built
1976
Building material
Wood/wood and steel frames
Last altered
1977
Rooms
6
Elevator
Bedrooms
3
Bathrooms
2
Lot
Acreage
0.29
Zoning & use
Zoning
Single Family Residential (R1-BE-CSU-R)
Units
1

Area overview

Walk score
8 /100.  Car-Dependent
Transit score
0 /100.  No Nearby Transit
Bike score
3 /100.  Somewhat Bikeable
School district
CASTRO VLY UNIF SCH
Ownership

Ownership information for 18540 Greenridge Court, Castro Valley, CA

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

Sales history for 18540 Greenridge Court, Castro Valley, CA 94552

Sale date Sale price Buyer name Seller name
12/11/2013 $577,000 XXXX XXXXXX XXXXXXXXXX XXXX X

*Most recent sale on record for this property.

More about Alameda County property records.

Title documents

Date Type Amount Party 1 Party 2
01/14/2026 Reconveyance XXX XXXXXX XX
12/22/2025 Deed of trust XXX XXXXXX XXX & XX XXXXX XXXXXXXXXX XXXXXXX XXXXXX XXXXX
09/13/2023 Deed of trust XXX XXXXXX XXX & XX XXXXX XXXXXX XXXXXX XXXXX
06/17/2021 Deed of trust
Request notice default/delinq		 XXX XXXXXX XXX & XX XXXXXXX XXXXXX XXXXX
06/17/2021 Deed of trust
Request notice default/delinq		 XXX XXXXXX XXX & XX XXXXXXX XXXXXX XXXXX
12/24/2020 Grant Deed XXX XXXXXX XXX XXXXXX XXXXX
12/17/2020 Deed of trust XXX XXXXXX XXXX XXXX
12/17/2020 Grant Deed XXX XXXXXX XX XXX XXXXXX
02/05/2020 Grant Deed XXX XXXXXX XXX XXXXXX XX
10/21/2019 Deed of Trust

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 18540 Greenridge 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
2025-2026
Base tax
$11,699
Current property tax
$11,617
Tax per sq. ft.
$7
Recent tax assessments
Market value
$1,005,054
Land value
$212,187
Building value
$792,867

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 $1,005,054 1.164 $11,699 +0.69%
2024-2025 $985,350 1.1791 $11,618 -43.64%
2023-2024 $876,832 2.3508 $20,613 +159.71%
2022-2023 $666,503 1.1908 $7,937 +2.52%
2021-2022 $653,440 1.1848 $7,742 +2.29%
2020-2021 $646,741 1.1703 $7,569 -2.00%
2019-2020 $634,064 1.218 $7,723 +2.87%
2018-2019 $621,636 1.2077 $7,507 +2.65%
2017-2018 $609,450 1.2001 $7,314 +19.10%
2016-2017 $597,500 1.0278 $6,141 -5.60%
Permits

Permit information for 18540 Greenridge Court, Castro Valley, CA

Issued date Permit number Permit type Sub type Valuation Finaled date Status
04/14/2023
11/03/2021
08/06/2021
11/07/2019
09/23/2019

*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
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 18540 Greenridge Court, Castro Valley, CA 94552 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)
Liberty School NR Private 1-12 0 0.10
Jensen Ranch Elementary School 9 Public K-5 382 0.91
Vannoy Elementary School 7 Public K-5 441 0.98
Early Bird Montessori School NR Private PK, K-1 30 1.27
Early Bird Montessori School NR Private PK, K-1 30 1.27
Independent Elementary School 8 Public K-5 634 1.31
Proctor Elementary School 8 Public K-5 584 1.45
Castro Valley Adult And Career Education NR Public 0 1.48
Alma Preschool NR Public 52 1.51
Redwood Christian Schools NR Private K-12 706 1.61
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Liberty School NR Private 1-12 0 0.10
Canyon Middle School 6 Public 6-8 1,332 0.86
Creekside Middle School 8 Public 6-8 760 1.45
Castro Valley Adult And Career Education NR Public 0 1.48
Alma Preschool NR Public 52 1.51
Redwood Christian Schools NR Private K-12 706 1.61
Northstar School NR Private PK-8 152 2.02
Our Lady Of Grace School NR Private K-8 218 2.30
Special Education-Preschool-Laurel NR Public 1 2.44
Anchor Education, Inc. NR Private 3-12 18 2.46
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Liberty School NR Private 1-12 0 0.10
Castro Valley Adult And Career Education NR Public 0 1.48
Alma Preschool NR Public 52 1.51
Redwood Christian Schools NR Private K-12 706 1.61
Castro Valley High School 9 Public 9-12 2,799 1.88
Special Education-Preschool-Laurel NR Public 1 2.44
Anchor Education, Inc. NR Private 3-12 18 2.46
Sterling West San Francisco Campus NR Private 3-11 27 2.47
Anchor Education, Inc. School NR Private 3-12 0 2.48
Castro Valley Virtual Academy 7 Public K-12 67 2.48

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

Neighbors for 18540 Greenridge Court, Castro Valley, CA

6071 Monte Verde CT, Castro Valley 18566 Greenridge CT, Castro Valley 18561 Greenridge CT, Castro Valley 5720 Shadow Ridge Dr, Castro Valley 5757 Cold Water Dr, Castro Valley 18505 Greenridge CT, Castro Valley 6110 Greenridge Rd, Castro Valley 18500 Greenridge CT, Castro Valley 6776 Crow Canyon Rd, Castro Valley 18548 Greenridge CT, Castro Valley 6124 Greenridge Rd, Castro Valley 18532 Greenridge CT, Castro Valley 6066 Monte Verde CT, Castro Valley 6650 Crow Canyon Rd, Castro Valley 5593 Trailside CT, Castro Valley 18574 Greenridge CT, Castro Valley 18581 Greenridge CT, Castro Valley 5713 Shadow Ridge Dr, Castro Valley 5856 Shadow Ridge Dr, Castro Valley 5562 Cold Water Dr, Castro Valley

Nearby ZIP codes for 18540 Greenridge Court, Castro Valley, CA

94542, Alameda County, CA 94579, Alameda County, CA 94619, Alameda County, CA

Frequently asked questions

What is the year built for 18540 Greenridge Court, Castro Valley, CA 94552?

The development at 18540 Greenridge Court, Castro Valley, CA 94552 was built in 1976.

What is the total square footage of 18540 Greenridge Court, Castro Valley, CA 94552?

18540 Greenridge Court, Castro Valley, CA 94552 has a total of 1,723 square feet.

When was 18540 Greenridge Court, Castro Valley, CA 94552 last sold and what was the sale price?

18540 Greenridge Court, Castro Valley, CA 94552 was last sold on 12/11/2013 for $577,000.

What is the assessed value of 18540 Greenridge Court, Castro Valley, CA 94552?

18540 Greenridge Court, Castro Valley, CA 94552 is currently assessed at $1,005,054.

What are the property taxes for 18540 Greenridge Court, Castro Valley, CA 94552?

The property taxes for 18540 Greenridge Court, Castro Valley, CA 94552 total $11,698.

How many residential units does this building have?

This building has 1 residential unit(s).

Disclaimer

Copyright 2003-2026 by PropertyShark.com

All data comes from government sources. No attempt has been made to validate it. No attempt has been made to validate the accuracy of the programming of this website.

Do not rely on this report to support investment decisions. The only authoritative source for the information in this report is the government agencies from which the data was acquired.

Sign up for a free account