4645 Hillside Pl, Castro Valley, CA 94546 Property Records

Alameda County property record for 4645 Hillside Pl, Castro Valley, CA 94546

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 1,936 sqft · built 1971
Lot Size	0.182 acres (7,946 sqft)
Owner	Company Name on Record
Last Sale	$157,500 (Aug 2010)
Tax Bill	$11,740 (2025)
Deeds & Mortgages	May 2023 Transfer May 2023 Transfer
Flood Zone	Zone X (minimal risk)
APN	`84D-1206-70`

Property Details

APN / Parcel Number

Primary APN	`84D-1206-70`
Alternative APN	`084D-1206-070-00`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	7 Rooms
Stories	2 Stories
Building Area	1,936 sqft Living Area

Exterior

Year Built	Built 1971
Effective Year Built	Effective 1971
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	7,946 sqft (0.182 acres)

Location & Zoning

Street Address	4645 HILLSIDE PL
City	CASTRO VALLEY
State	CA
Zip	94546-1408
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00008 BLK: TR: 2984
Legal Subdivision	TRACT 2984 FILED MARCH 13 1968
Legal Tract	2984
Legal Lot Number	8
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	3
Census Block	3000
Census Tract	430300

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	4645 HILLSIDE PL, CASTRO VALLEY, CA 94546-1408
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
May 26, 2023	Intrafamily Transfer, Transfer
May 26, 2023	Intrafamily Transfer, Transfer

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Aug 17, 2010 · Amount on Record
Deed Sale	Aug 17, 2010 · Amount on Record
Prior Sale	Feb 17, 2005 · Amount on Record
Deed Document Number	2010236086
Last Transfer Date	May 25, 2023
Transfer Doc	0000060402
Record Updated	Sep 20, 2026

May 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ALAMEDA CA
Recording Date	May 26, 2023
Property Address	4645 HILLSIDE PL, CASTRO VALLEY, CA 94546-1408
Document Number	0000060403
Map Reference	MB 56 PG 71
Instrument Date	May 25, 2023
Instrument	2023060403
Transaction Type	Transfer
Record Updated	Jun 23, 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	Family Trust
Address	4645 HILLSIDE PL, CASTRO VALLEY, CA 94546-1408

May 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ALAMEDA CA
Recording Date	May 26, 2023
Property Address	4645 HILLSIDE PL, CASTRO VALLEY, CA 94546-1408
Document Number	0000060402
Map Reference	MB 56 PG 71
Instrument Date	May 25, 2023
Instrument	2023060402
Transaction Type	Transfer
Record Updated	Jun 23, 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	Community Property with Right of Survivorship
Address	4645 HILLSIDE PL, CASTRO VALLEY, CA 94546-1408

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		$939,818 (+1.25%) Land $284,045 Building $662,773
2025	$11,740.00 (+3.87%) Homeowner's exemption	$928,257 (+4.04%) Land $278,477 Building $649,780
2023	$11,303.00 Homeowner's exemption	$892,220 Land $267,666 Building $624,554	$1,030,680

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 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 7 (15% premium discount)
Nearby Flood Policies	1 in force

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

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

Wildfire Risk	Low lower than 62% of the US · lower than 77% of California
Wildfire Likelihood	0.06% 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 666 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Sonic Telecom Fiber	10,000 / 10,000
AT&T Fiber · DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20

May also be available: Etheric Networks, T-Mobile, Unwired.

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