18533 Greenridge Ct, Castro Valley, CA 94552 Property Records

Alameda County property record for 18533 Greenridge Ct, Castro Valley, CA 94552

Property Summary

Property Type	Single Family Home
Details	2,229 sqft · built 1976
Lot Size	0.352 acres (15,342 sqft)
Owner	Trust Name on File
Last Sale	$379,000 (Dec 1999)
Tax Bill	$7,656 (2025)
Deeds & Mortgages	Oct 2021 Transfer Jan 2021 Line of Credit + 1 more
Flood Zone	Zone X (minimal risk)
APN	`85-1613-9`

Property Details

APN / Parcel Number

Primary APN	`85-1613-9`
Alternative APN	`085-1613-009-00`

Interior

Building Area	2,229 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1976
Effective Year Built	Effective 1985
Architectural Style	L-Shape
Exterior Material	Stucco
Construction Type	Wood
Roof Material	Wood Shingle
Lot Area	15,342 sqft (0.352 acres)
View / Lot	Woodland

Utilities, Heating & Cooling

Heating System	Forced Air with A/C
Heating Fuel	Gas
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	18533 GREENRIDGE CT
City	CASTRO VALLEY
State	CA
Zip	94552-1809
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Description	LOT: 00024 BLK: TR: 3611
Legal Subdivision	TRACT 3611
Legal Tract	3611
Legal Lot Number	24
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	1
Census Block	1009
Census Tract	430102

Owner

18533 Greenridge Ct is owner-occupied and held in a trust since December 1999.

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

Owner of Record	Trust Name on File
Mailing Address	18533 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Oct 5, 2021	Intrafamily Transfer, Transfer
Jan 12, 2021	Deed of Trust, Mortgage · Line of Credit BANK OF THE WEST
Oct 16, 2020	Deed of Trust, Mortgage · Conventional Mortgage UNITED WHOLESALE MORTGAGE

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Dec 7, 1999 · Amount on File
Deed Sale	Dec 7, 1999 · Amount on File
Deed Document Number	1999436587
Prior Transfer Date	Aug 26, 1997
Prior Transfer Doc	0000224718
Record Updated	Oct 29, 2026

October 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ALAMEDA CA
Recording Date	Oct 5, 2021
Property Address	18533 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809
Document Number	0000333209
Map Reference	MB 92 PG 1-3
Instrument Date	Sep 20, 2021
Instrument	2021333209
Transaction Type	Transfer
Record Updated	Sep 28, 2023

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	18533 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809

January 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	18533 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809
Transaction Type	Mortgage
Record Updated	Mar 18, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	18533 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809

Mortgage

Document Number	0000015003
Date	Jan 12, 2021
Instrument	2021015003

Lender

Name	BANK OF THE WEST
Type	Bank
Address	OMAHA, NE 68154

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	359 Months
Due	Dec 1, 2050

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

October 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	18533 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	OLD REPUBLIC TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	18533 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809

Mortgage

Document Number	0000276035
Date	Oct 16, 2020
Instrument	2020276035

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company
Address	PONTIAC, MI 48341

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Nov 1, 2050

Tax Assessment & Valuation

The 2025 property tax bill for 18533 Greenridge Ct was $7,656 with a homeowner's exemption.

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		$586,814 (+0.8%) Land $178,238 Building $415,576
2025	$7,656.00 Homeowner's exemption	$582,173 Land $174,744 Building $407,429
2023	$7,354.00 Homeowner's exemption	$559,570 Land $167,959 Building $391,611	$1,520,010

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

Flood

FEMA maps place 18533 Greenridge Ct in Zone X, an area of minimal flood risk.

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

Wildfire risk around 18533 Greenridge Ct is high, ranking above 71% of the US, with a 0.3% annual chance of wildfire.

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

Wildfire Risk	High above 71% of the US · above 46% of California
Wildfire Likelihood	0.3% 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 389 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: Unwired.

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