Alameda County » 18517 Greenridge CT

18517 Greenridge Court, Castro Valley, CA 94552 Property Information

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Address

Primary address	18517 Greenridge Court, Castro Valley
Zip code	94552
County	Alameda

Parcel ID	85-1613-8

Sales & Tax Overview for 18517 Greenridge Court, Castro Valley

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

Sale date	09/24/1993
Sale price	$300,000

Arm's length	Register
Current property tax	$7,319

Lot & Building Information for 18517 Greenridge Court, Castro Valley

Building sqft	3,112
Building class	Single Family Residential Homes Used as Such (1100)
Acreage	0.32
Units	1
Year built	1976

Zoning, Use & Area Overview

Walk Score

Transit Score

Bike Score

Zoning district	Single Family Residential (R1-BE-CSU-R)
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 18517 Greenridge Court, Castro Valley

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About 18517 Greenridge Court, Castro Valley

What is the year built & the total sq. ft. for 18517 Greenridge Court, Castro Valley, CA 94552?

18517 Greenridge Court, Castro Valley, CA 94552 was built in 1976 and has a total of 3,112 square feet.

What is the assessed value of 18517 Greenridge Court, Castro Valley, CA 94552 and the property tax paid?

Assessed at $635,814, the tax amount paid for 18517 Greenridge Court, Castro Valley, CA 94552 is $7,400.

When was 18517 Greenridge Court, Castro Valley, CA 94552 last sold?

18517 Greenridge Court, Castro Valley, CA 94552 was last sold in 09/14/2020.

Ownership Information

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Commercial Real Estate nearby

Real Estate Reports:

Lucian Alixandrescu, Jul 28, 2026 Brooklyn Emerges as NYC’s Coworking Growth Engine, Manhattan Rents Cross $100 in the Plaza District

New York City’s office market continued to lead the U.S. in Q2, but internal shifts were most visible in the flex office market. Brooklyn’s coworking inventory grew 6.2% Q-o-Q even as Manhattan’s supply retreated. At the same time, Brooklyn’s asking rents for traditional office leases climbed more than twice as fast as the national average.

Eliza Theiss, Jul 22, 2026 Prices Rise in 32 of NYC’s Leading Neighborhoods as City and Manhattan Hit Record Highs

Q2 2026 saw NYC and Manhattan reach historic highs, with Brooklyn and Queens marking close to new records as well. Meanwhile, Hudson Yards remained at the top, Central Midtown posted its highest price ever and Carroll Gardens marked its third consecutive quarter over $2 million

Laura Pop-Badiu, Jul 15, 2026 How to Find Property Owners — The Complete Guide

For real estate professionals looking for the best ways to find property owners — whether through free methods based on public sources or paid tools with verified, in-depth data — this comprehensive guide breaks down every step of the due diligence process.

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Past Sales & Property History for 18517 Greenridge Court, Castro Valley

Create a free account to view the complete sales history for 18517 Greenridge Court, Castro Valley, including title documents, transfer conditions, mortgages and liens.

Purchase date	Purchase price	Buyer name	Seller name
09/24/1993	$300,000	Register	Register

More about Alameda County Property Records

Title Documents for 18517 Greenridge Court, 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
05/06/2022	Affidavit of death
09/14/2020	Quitclaim Deed
09/14/2020	Quitclaim Deed
11/20/2018	Quitclaim Deed
04/28/2017	Quitclaim Deed
04/28/2017	Quitclaim Deed
04/18/2001	Deed
11/17/1997	Deed
09/24/1993	Deed

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R: Recorded date
D: Document date

Property Taxes for 18517 Greenridge Court, Castro Valley

Access detailed property tax data for 18517 Greenridge Court, 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	$7,401
Current property tax	$7,319

Market value	$635,814

More about Alameda County Property Taxes

Assessment History for 18517 Greenridge Court, Castro Valley

Here's the assessment & property tax history for 18517 Greenridge Court, 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	$635,814	1.164	$7,401	+0.69%
2024-2025	$623,349	1.1791	$7,350	-48.84%
2023-2024	$611,127	2.3508	$14,366	+101.36%
2022-2023	$599,146	1.1908	$7,135	+2.51%
2021-2022	$587,399	1.1848	$6,960	+2.29%

Permits for 18517 Greenridge Court, Castro Valley

The complete history of permits filed for 18517 Greenridge Court, 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.

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Castro Valley residential market stats

Median Sale Price

$1,013,750

-2.9% YoY

Median Price/Sqft

$619

-9.8% YoY

Alameda County Median Sale Price

$955,000

-6.4% 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.

Risk

Create a free account to unlock extended information for 18517 Greenridge Court, 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	Register
Landslides and liquefaction map	Register

Transportation

Access the detailed traffic volume map for 18517 Greenridge Court, 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

Schools

Nearest elementary schools

Name	Rating	Type	Grade range	No of students	Distance (miles)
Liberty School	NR	Private	1-12	0	0.12
Jensen Ranch Elementary School	9	Public	K-5	382	0.92
Vannoy Elementary School	7	Public	K-5	441	1.02
Early Bird Montessori School	NR	Private	PK, K-1	30	1.31
Early Bird Montessori School	NR	Private	PK, K-1	30	1.31

Nearest middle schools

Name	Rating	Type	Grade range	No of students	Distance (miles)
Liberty School	NR	Private	1-12	0	0.12
Canyon Middle School	6	Public	6-8	1,332	0.91
Creekside Middle School	8	Public	6-8	760	1.49
Castro Valley Adult And Career Education	NR	Public		0	1.50
Alma Preschool	NR	Public		52	1.53

Nearest high schools

Name	Rating	Type	Grade range	No of students	Distance (miles)
Liberty School	NR	Private	1-12	0	0.12
Castro Valley Adult And Career Education	NR	Public		0	1.50
Alma Preschool	NR	Public		52	1.53
Redwood Christian Schools	NR	Private	K-12	706	1.64
Castro Valley High School	9	Public	9-12	2,799	1.91

Neighbors for 18517 Greenridge Court, Castro Valley

Here are the neighbors for 18517 Greenridge Court, Castro Valley.

Address	Square feet	Purchase date	Purchase price
6085 Monte Verde CT, Castro Valley	2,119
18516 Greenridge CT, Castro Valley	1,891
18555 Greenridge CT, Castro Valley	3,001	03/20/2001
6087 Greenridge Rd, Castro Valley	1,723	12/15/2006	$685,000
6065 Monte Verde CT, Castro Valley	2,229	04/14/2025
6003 Greenridge Rd, Castro Valley	2,119	10/10/2022	$1,168,000
6075 Greenridge Rd, Castro Valley	1,891	10/20/1992
18569 Greenridge CT, Castro Valley	2,119	07/28/2000
18575 Greenridge CT, Castro Valley	2,229	05/18/2026
6116 Greenridge Rd, Castro Valley	2,119	05/15/2025	$1,550,000
6063 Greenridge Rd, Castro Valley	1,891	05/16/2022	$1,430,000
6051 Greenridge Rd, Castro Valley	2,229	11/10/2015	$825,000
18541 Greenridge CT, Castro Valley	2,119	05/04/2022	$1,800,000
18509 Greenridge CT, Castro Valley	2,344	08/01/2025	$1,435,000
6039 Greenridge Rd, Castro Valley	2,119	09/05/2024	$1,420,000
6072 Monte Verde CT, Castro Valley	2,521	08/23/1994	$394,000
18505 Mesa Verde Way, Castro Valley	1,891	12/31/2012	$127,000
18533 Greenridge CT, Castro Valley	2,229	10/05/2021
18549 Greenridge CT, Castro Valley	2,119	02/04/2019
18501 Greenridge CT, Castro Valley	1,891	06/12/2019

Nearby ZIP Codes for 18517 Greenridge Court, Castro Valley

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Issued	Permit	Type	Status
02/26/2018
06/22/2016
04/17/2015
06/26/2014
10/30/2013