18541 Greenridge Ct, Castro Valley, CA 94552 Property Records

Alameda County property record for 18541 Greenridge Ct, Castro Valley, CA 94552

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 2,119 sqft · built 1976
Lot Size	0.558 acres (24,316 sqft)
Owner	2 Individual Names on File
Last Sale	$1,800,000 (May 2022)
Tax Bill	$21,519 (2025)
Deeds & Mortgages	Nov 2021 Line of Credit May 2022 Sale & Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`85-1613-10`

Property Details

APN / Parcel Number

Primary APN	`85-1613-10`
Alternative APN	`085-1613-010-00`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	6 Rooms
Stories	2 Stories
Building Area	2,119 sqft Living Area

Exterior

Year Built	Built 1976
Effective Year Built	Effective 1978
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	24,316 sqft (0.558 acres)
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	18541 GREENRIDGE CT
City	CASTRO VALLEY
State	CA
Zip	94552-1809
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00023 BLK: TR: 3611
Legal Subdivision	TRACT 3611
Legal Tract	3611
Legal Lot Number	23
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	1
Census Block	1009
Census Tract	430102

Owner

18541 Greenridge Ct is owned and occupied by two individuals who bought it in May 2022.

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

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

Owner of Record	2 Individual Names on File
Mailing Address	18541 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Nov 8, 2021	Deed of Trust, Mortgage · Line of Credit PATELCO CU
May 4, 2022	Grant Deed, Transfer · Conventional Mortgage FREMONT BANK
Apr 20, 2020	Quit Claim Deed, Transfer NOT AVAILABLE
Mar 18, 2020	Quit Claim Deed, Transfer QUICKEN LNS

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 4, 2022 · Amount on File
Deed Sale	May 4, 2022 · Amount on File
Prior Sale	Jan 10, 2012 · Amount on File
Deed Document Number	202288012
Prior Transfer Date	Mar 13, 2020
Prior Transfer Doc	0000088271
Record Updated	Oct 29, 2026

November 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	18541 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809
Transaction Type	Mortgage
Record Updated	Sep 28, 2023
Title Company	E-PLACER TITLE, PLACER TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	18541 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809

Mortgage

Document Number	0000365630
Date	Nov 8, 2021
Instrument	2021365630

Lender

Name	PATELCO CU
Type	Credit Union
Address	DUBLIN, CA 94568

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	301 Months
Due	Dec 30, 2046

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

May 2022: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	May 4, 2022
Property Address	18541 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809
Document Number	0000088012
Map Reference	MB 92 PG 1-3
Instrument Date	Apr 20, 2022
Instrument	2022088012
Transaction Type	Transfer
Record Updated	Sep 28, 2023
Title Company	CHICAGO TITLE COMPANY

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$1,980.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	18541 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809

Mortgage

Document Number	0000088013
Date	May 4, 2022
Instrument	2022088013

Lender

Name	FREMONT BANK
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	May 1, 2052

Interest

Rate Type	Adjustable Rate
Rate	4.25%
Type Change Date	May 1, 2029
Change Frequency	6 Months
Min Rate At Change	2.87%
Max Rate At Change	9.25%
Index	Other
Max Rate	9.25%

April 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Apr 20, 2020
Property Address	18541 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809
Document Number	0000088271
Instrument Date	Mar 13, 2020
Instrument	88271
Transaction Type	Transfer
Record Updated	Jun 12, 2020
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	18541 GREENRIDGE CT CASTRO VALLEY CA 945521809, CASTRO VALLEY, CA 94552-1809

March 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Mar 18, 2020
Property Address	18541 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809
Document Number	0000064576
Instrument Date	Mar 13, 2020
Instrument	64576
Transaction Type	Transfer
Record Updated	May 18, 2020
Title Company	WFG NATIONAL TITLE COMPANY, WFG NAT'L TITLE CO

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	18541 GREENRIDGE CT CASTRO VALLEY CA 945521809, CASTRO VALLEY, CA 94552-1809

Mortgage

Document Number	64577
Date	Mar 18, 2020
Instrument	64577

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Amount	Amount on Record
Term	240 Months
Due	Mar 17, 2040

Tax Assessment & Valuation

The 2025 property tax bill for 18541 Greenridge Ct was $21,519.

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		$1,730,000 (-1.14%) Land $519,000 Building $1,211,000
2025	$21,519.00	$1,750,000 Land $525,000 Building $1,225,000
2023	$20,453.00	$1,656,000 Land $496,800 Building $1,159,200	$1,747,890

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

Flood

FEMA maps place 18541 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 18541 Greenridge Ct is high, ranking above 79% of the US, with a 0.5% annual chance of 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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