4584 Sargent Ave, Castro Valley, CA 94546 Property Records

Alameda County property record for 4584 Sargent Ave, Castro Valley, CA 94546

Property Summary

Property Type	Single Family Home
Details	2 bd · 1 ba · 710 sqft · built 1938
Lot Size	0.115 acres (5,022 sqft)
Owner	2 Individual Names on File
Last Sale	$605,000 (Dec 2019)
Tax Bill	$8,594 (2025)
Deeds & Mortgages	Sep 2021 Mortgage Dec 2019 Sale & Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`84C-700-6-2`

Property Details

APN / Parcel Number

Primary APN	`84C-700-6-2`
Alternative APN	`084C-0700-006-02`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Total Rooms	5 Rooms
Stories	1 Story
Building Area	710 sqft Living Area

Exterior

Year Built	Built 1938
Effective Year Built	Effective 1940
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	5,022 sqft (0.115 acres)

Location & Zoning

Street Address	4584 SARGENT AVE
City	CASTRO VALLEY
State	CA
Zip	94546-3650
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00002 BLK: 0006 AR: 084C PAGE: 0700
Legal Subdivision	SAN LORENZO RHO
Legal Lot Number	40
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	2
Census Block	2000
Census Tract	430800

Owner

4584 Sargent Ave is owned and occupied by two individuals who bought it in December 2019.

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

Owner of Record	2 Individual Names on File
Mailing Address	4584 SARGENT AVE, CASTRO VALLEY, CA 94546-3650
Occupancy	Owner Occupied
Owner Type	Individual

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 9, 2021	Deed of Trust, Mortgage · Conventional Mortgage HOME POINT FINANCIAL CORPORATION
Dec 5, 2019	Grant Deed, Transfer · Conventional Mortgage R M K FINANCIAL CORP
Dec 29, 2017	Quit Claim Deed, Transfer ATTORNEY ONLY
Aug 2, 2017	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Dec 5, 2019 · Amount on File
Deed Sale	Dec 5, 2019 · Amount on File
Deed Document Number	2019249165
Prior Transfer Date	Dec 13, 2017
Prior Transfer Doc	0000288110
Record Updated	Oct 29, 2026

September 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	4584 SARGENT AVE, CASTRO VALLEY, CA 94546-3650
Transaction Type	Mortgage
Record Updated	Jan 28, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4584 SARGENT AVE, CASTRO VALLEY, CA 94546-3650

Mortgage

Document Number	0000305310
Date	Sep 9, 2021
Instrument	2021305310

Lender

Name	HOME POINT FINANCIAL CORPORATION
Type	Mortgage Company
Address	PARSIPPANY, NJ 07054

Agreement

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

December 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Dec 5, 2019
Property Address	4584 SARGENT AVE, CASTRO VALLEY, CA 94546-3650
Document Number	0000249165
Instrument Date	Nov 26, 2019
Instrument	2019249165
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	4584 SARGENT AVE, CASTRO VALLEY, CA 94546-3650

Mortgage

Document Number	0000249166
Date	Dec 5, 2019
Instrument	2019249166

Lender

Name	R M K FINANCIAL CORP
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Dec 1, 2049

December 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Dec 29, 2017
Property Address	4584 SARGENT AVE, CASTRO VALLEY, CA 94546-3650
Document Number	0000288110
Instrument Date	Dec 13, 2017
Instrument	288110
Transaction Type	Transfer
Record Updated	Jan 23, 2018
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	17923 TRENTON DR CASTRO VALLEY CA 945461518, CASTRO VALLEY, CA 94546-1518

August 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Aug 2, 2017
Property Address	4584 SARGENT AVE, CASTRO VALLEY, CA 94546-3650
Document Number	0000169648
Instrument Date	Jul 24, 2017
Instrument	169648
Transaction Type	Transfer
Record Updated	Aug 29, 2017
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	4584 SARGENT AVE CASTRO VALLEY CA 945463650, CASTRO VALLEY, CA 94546-3650

Tax Assessment & Valuation

The 2025 property tax bill for 4584 Sargent Ave was $8,594 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		$667,877 (+0.94%) Land $202,463 Building $472,414
2025	$8,594.00 Homeowner's exemption	$661,645 Land $198,493 Building $463,152
2023	$8,261.00 Homeowner's exemption	$635,957 Land $190,787 Building $445,170	$649,170

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

Flood

FEMA maps place 4584 Sargent Ave in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1997.

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
Nearby Flood Claims	1 (1997)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Nov 1997 · river or lake flooding

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

Wildfire risk around 4584 Sargent Ave is low, with a 0.01% annual chance of wildfire.

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

Wildfire Risk	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	0.01% annual chance
Exposure	None beyond ember reach

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 804 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 · Fixed Wireless 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, GeoLinks.

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