18517 Greenridge Ct, Castro Valley, CA 94552 Property Records

Alameda County property record for 18517 Greenridge Ct, Castro Valley, CA 94552

Property Summary

Property Type	Single Family Home
Details	3,112 sqft · built 1976
Lot Size	0.317 acres (13,804 sqft)
Owner	Trust Name on File
Tax Bill	$8,289 (2025)
Deeds & Mortgages	Sep 2020 Mortgage Sep 2020 Transfer + 4 more
Flood Zone	Zone X (minimal risk)
APN	`85-1613-8`

Property Details

APN / Parcel Number

Primary APN	`85-1613-8`
Alternative APN	`085-1613-008-00`

Interior

Building Area	3,112 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1976
Effective Year Built	Effective 1978
Architectural Style	L-Shape
Exterior Material	Stucco
Construction Type	Wood
Roof Material	Wood Shingle
Lot Area	13,804 sqft (0.317 acres)
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

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

Location & Zoning

Street Address	18517 GREENRIDGE CT
City	CASTRO VALLEY
State	CA
Zip	94552-1809
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00025 BLK: TR: 3611
Legal Subdivision	TRACT 3611
Legal Tract	3611
Legal Lot Number	25
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	1
Census Block	1009
Census Tract	430102

Owner

18517 Greenridge Ct is owner-occupied and held in a trust since June 2020.

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

Owner of Record	Trust Name on File
Mailing Address	18517 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
Sep 14, 2020	Intrafamily Transfer, Transfer · Conventional Mortgage QUICKEN LOANS LLC
Sep 14, 2020	Quit Claim Deed, Transfer AMROCK INC
Nov 20, 2018	Quit Claim Deed, Transfer · Conventional Mortgage QUICKEN LNS
Nov 20, 2018	Quit Claim Deed, Transfer OTHER
Apr 28, 2017	Quit Claim Deed, Transfer TSI TITLE COMPANY, TSI TITLE CO
Apr 28, 2017	Quit Claim Deed, Transfer · Conventional Mortgage QUICKEN LNS

Assessor's Deed Record

Deed Names	Name on Deed
Last Transfer Date	Jun 30, 2020
Transfer Doc	0000231555
Record Updated	Oct 29, 2026

September 2020: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ALAMEDA CA
Recording Date	Sep 14, 2020
Property Address	18517 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809
Document Number	0000231553
Map Reference	MB 92 PG 1
Instrument Date	Jun 30, 2020
Instrument	2020231553
Transaction Type	Transfer
Record Updated	Aug 19, 2021
Title Company	AMROCK

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	Joint Tenants with Right of Survivorship
Address	18517 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809

Mortgage

Document Number	0000231554
Date	Sep 14, 2020
Instrument	2020231554

Lender

Name	QUICKEN LOANS LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	178 Months
Due	Jul 1, 2035

September 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Sep 14, 2020
Property Address	18517 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809
Document Number	0000231555
Instrument Date	Jun 30, 2020
Instrument	231555
Transaction Type	Transfer
Record Updated	Nov 18, 2020
Title Company	AMROCK INC

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	18517 GREENRIDGE CT CASTRO VALLEY CA 945521809, CASTRO VALLEY, CA 94552-1809

November 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Nov 20, 2018
Property Address	18517 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809
Document Number	0000221821
Instrument Date	Nov 10, 2018
Instrument	221821
Transaction Type	Transfer
Record Updated	Dec 11, 2018
Title Company	OTHER

Transaction

Tax	$0.00
Amount Accuracy	Full Value
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Husband and Wife
Address	18517 GREENRIDGE CT CASTRO VALLEY CA 945521809, CASTRO VALLEY, CA 94552-1809

Mortgage

Document Number	221822
Date	Nov 20, 2018
Instrument	221822

Lender

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

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	180 Months
Due	Nov 19, 2033

November 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Nov 20, 2018
Property Address	18517 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809
Document Number	0000221823
Instrument Date	Nov 10, 2018
Instrument	221823
Transaction Type	Transfer
Record Updated	Dec 11, 2018
Title Company	OTHER

Transaction

Tax	$0.00
Amount Accuracy	Full Value
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	18517 GREENRIDGE CT CASTRO VALLEY CA 945521809, CASTRO VALLEY, CA 94552-1809

April 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Apr 28, 2017
Property Address	18517 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809
Document Number	0000094951
Instrument Date	Apr 19, 2017
Instrument	94951
Transaction Type	Transfer
Record Updated	May 24, 2017
Title Company	TSI TITLE COMPANY, TSI TITLE CO

Transaction

Tax	$0.00
Amount Accuracy	Full Value
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	18517 GREENRIDGE CT CASTRO VALLEY CA 945521809, CASTRO VALLEY, CA 94552-1809

April 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Apr 28, 2017
Property Address	18517 GREENRIDGE CT, CASTRO VALLEY, CA 94552-1809
Document Number	0000094949
Instrument Date	Apr 19, 2017
Instrument	94949
Transaction Type	Transfer
Record Updated	May 24, 2017
Title Company	TSI TITLE COMPANY, TSI TITLE CO

Transaction

Tax	$0.00
Amount Accuracy	Full Value
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	18517 GREENRIDGE CT CASTRO VALLEY CA 945521809, CASTRO VALLEY, CA 94552-1809

Mortgage

Document Number	94950
Date	Apr 28, 2017
Instrument	94950

Lender

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

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Apr 27, 2047

Interest

Rate Type	Adjustable Rate
Rate	3.99%

Tax Assessment & Valuation

The 2025 property tax bill for 18517 Greenridge Ct was $8,289 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		$641,529 (+0.9%) Land $156,023 Building $492,506
2025	$8,289.00 Homeowner's exemption	$635,814 Land $152,964 Building $482,850
2023	$7,966.00 Homeowner's exemption	$611,127 Land $147,024 Building $464,103	$1,600,920

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

Flood

FEMA maps place 18517 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 18517 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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