18501 Greenridge Ct, Castro Valley, CA 94552 Property Records

Alameda County property record for 18501 Greenridge Ct, Castro Valley, CA 94552

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,891 sqft · built 1976
Lot Size	0.262 acres (11,408 sqft)
Owner	Company Name on Record
Last Sale	$935,000 (Sep 2017)
Tax Bill	$13,422 (2025)
Deeds & Mortgages	Mar 2020 Line of Credit Jun 2019 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`85-1613-5`

Property Details

APN / Parcel Number

Primary APN	`85-1613-5`
Alternative APN	`085-1613-005-00`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	8 Rooms
Building Area	1,891 sqft Living Area

Exterior

Year Built	Built 1976
Effective Year Built	Effective 1978
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	11,408 sqft (0.262 acres)
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	18501 GREENRIDGE CT
City	CASTRO VALLEY
State	CA
Zip	94552-1809
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00028 BLK: TR: 3611
Legal Tract	3611
Legal Lot Number	28
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	1
Census Block	1009
Census Tract	430102

Owner

Source: Alameda County records, as of August 5, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Company Name on Record
Mailing Address	18501 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Mar 19, 2020	Deed of Trust, Mortgage · Line of Credit COMERICA BANK
Jun 12, 2019	Quit Claim Deed, Transfer ATTORNEY ONLY
Sep 15, 2017	Grant Deed, Transfer OLD REPUBLIC TITLE

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Sep 15, 2017 · Amount on Record
Deed Sale	Sep 15, 2017 · Amount on Record
Deed Document Number	2017202265
Last Transfer Date	Jun 12, 2019
Transfer Doc	0000110801
Record Updated	Oct 29, 2026

March 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	18501 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000065172
Date	Mar 19, 2020
Instrument	2020065172

Lender

Name	COMERICA BANK
Type	Bank
Address	DALLAS, TX 75201

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

June 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Jun 12, 2019
Property Address	18501 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809
Document Number	0000110801
Instrument Date	Jun 12, 2019
Instrument	110801
Transaction Type	Transfer
Record Updated	Jul 26, 2019
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	18501 GREENRIDGE CT CASTRO VALLEY CA 945521809, CASTRO VALLEY, CA 94552-1809

September 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Sep 15, 2017
Property Address	18501 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809
Document Number	0000202265
Instrument Date	Sep 8, 2017
Instrument	202265
Transaction Type	Transfer
Record Updated	Oct 17, 2017
Title Company	OLD REPUBLIC TITLE

Transaction

Amount	Amount Recorded
Tax	$1,028.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3366 MT DIABLO BLVD #6 LAFAYETTE CA 945494025, 6, LAFAYETTE, CA 94549-4025

Tax Assessment & Valuation

Source: Alameda County assessment roll, as of August 5, 2026

Property Jurisdictions

Type	Name
State	California
County	Alameda County
Unified School District	Castro Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$1,085,123 (+2%) Land $325,537 Building $759,586
2025	$13,422.00 (+3.78%)	$1,063,851 (+4.04%) Land $319,155 Building $744,696
2023	$12,933.00	$1,022,543 Land $306,763 Building $715,780	$1,354,950

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

Source: FEMA National Flood Hazard Layer, effective May 25, 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	High above 79% of the US · above 57% of California
Wildfire Likelihood	0.5% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005
Water Source	Surface water
Last State Inspection	Dec 2021
Lead	Under 1 ppb (2022–2024) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 15 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber	5,000 / 5,000
Xfinity Cable	2,000 / 250
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: Unwired.

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