5566 Greenridge Rd, Castro Valley, CA 94552 Property Records

Alameda County property record for 5566 Greenridge Rd, Castro Valley, CA 94552

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,834 sqft · built 1960
Lot Size	0.259 acres (11,270 sqft)
Owner	2 Individual Names on File
Last Sale	$1,770,000 (May 2021)
Tax Bill	$23,476 (2025)
Deeds & Mortgages	May 2021 Sale & Mortgage Sep 2017 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`85-1603-33`

Property Details

APN / Parcel Number

Primary APN	`85-1603-33`
Alternative APN	`085-1603-033-00`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	7 Rooms
Stories	1 Story
Building Area	1,834 sqft Living Area

Exterior

Year Built	Built 1960
Effective Year Built	Effective 1961
Architectural Style	H-Shape
Construction Type	Wood
Lot Area	11,270 sqft (0.259 acres)

Location & Zoning

Street Address	5566 GREENRIDGE RD
City	CASTRO VALLEY
State	CA
Zip	94552-2624
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00035 BLK: 0001 TR: 2084
Legal Subdivision	TRACT 2084
Legal Tract	2084
Legal Lot Number	35
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	1
Census Block	1017
Census Tract	430102

Owner

5566 Greenridge Rd is owned by two individuals who bought it in May 2021.

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	865 JORDAN AVE, LOS ALTOS, CA 94022-1414
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Date	Document
May 28, 2021	Grant Deed, Transfer · Conventional Mortgage MUFG UNION BANK NA
Sep 13, 2017	Grant Deed, Transfer · ARM C2 FINANCIAL CORP

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 28, 2021 · Amount on File
Deed Sale	May 28, 2021 · Amount on File
Prior Sale	Sep 13, 2017 · Amount on File
Deed Document Number	2021199502
Prior Transfer Date	Dec 16, 1997
Prior Transfer Doc	0000008308
Record Updated	Oct 29, 2026

May 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	May 28, 2021
Property Address	5566 GREENRIDGE RD, CASTRO VALLEY, CA 94552-2624
Document Number	0000199502
Map Reference	MB 41 PG 88&89
Instrument Date	May 21, 2021
Instrument	2021199502
Transaction Type	Transfer
Record Updated	Jun 16, 2021
Title Company	FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$1,947.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	865 JORDAN AVE, LOS ALTOS, CA 94022-1414

Mortgage

Document Number	0000199503
Date	May 28, 2021
Instrument	2021199503

Lender

Name	MUFG UNION BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jun 1, 2051

Interest

Rate Type	Adjustable Rate
Rate	2.75%
Type Change Date	Jun 1, 2028
Change Frequency	6 Months
Min Rate At Change	2.75%
Max Rate At Change	4.75%
Index	Other
Max Rate	8.75%

September 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Sep 13, 2017
Property Address	5566 GREENRIDGE RD, CASTRO VALLEY, CA 94552-2624
Document Number	0000199980
Map Reference	MB41 PG88&89
Instrument Date	Sep 6, 2017
Instrument	2017199980
Transaction Type	Transfer
Record Updated	Aug 19, 2021
Title Company	CHICAGO TITLE COMPANY

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	5566 GREENRIDGE RD, CASTRO VALLEY, CA 94552-2624

Mortgage

Document Number	0000199981
Date	Sep 13, 2017
Instrument	2017199981

Lender

Name	C2 FINANCIAL CORP
Type	Mortgage Company

Agreement

Type	ARM
Amount	Amount on Record
Term	361 Months
Due	Oct 1, 2047

Interest

Rate Type	Adjustable Rate
Rate	3%
Type Change Date	Oct 1, 2024
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	8.62%
Index	1-Year LIBOR
Max Rate	8.62%

Tax Assessment & Valuation

The 2025 property tax bill for 5566 Greenridge Rd was $23,476.

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		$1,700,000 (-11.27%) Land $510,000 Building $1,190,000
2025	$23,476.00	$1,915,883 Land $574,765 Building $1,341,118
2023	$22,655.00	$1,841,507 Land $552,452 Building $1,289,055	$1,763,910

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

Flood

FEMA maps place 5566 Greenridge Rd 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 5566 Greenridge Rd is moderate, ranking above 58% of the US, with a 0.1% annual chance of wildfire.

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

Wildfire Risk	Moderate above 58% of the US · lower than 65% of California
Wildfire Likelihood	0.1% 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 252 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
T-Mobile Fixed Wireless	100 / 20

May also be available: Etheric Networks, Unwired.

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