1856 Knox St, Castro Valley, CA 94546 Property Records

Alameda County property record for 1856 Knox St, Castro Valley, CA 94546

Property Summary

Property Type	Single Family Home
Details	2 bd · 1 ba · 884 sqft · built 1922
Lot Size	0.172 acres (7,500 sqft)
Owner	2 Individual Names on File
Last Sale	$770,000 (Dec 2021)
Tax Bill	$10,696 (2025)
Deeds & Mortgages	Dec 2021 Sale Oct 2020 Transfer + 3 more
Flood Zone	Zone X (minimal risk)
APN	`415-100-111`

Property Details

APN / Parcel Number

Primary APN	`415-100-111`
Alternative APN	`415-0100-111-00`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Total Rooms	4 Rooms
Stories	1 Story
Building Area	884 sqft Living Area

Exterior

Year Built	Built 1922
Effective Year Built	Effective 1922
Architectural Style	Custom Design
Construction Type	Wood
Roof Material	Tar & Gravel
Lot Area	7,500 sqft (0.172 acres)
Lot Dimensions	150 ft deep x 50 ft wide
Parking Spaces	4 Parking Spaces

Utilities, Heating & Cooling

Heating System	Floor/Wall Furnace
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	1856 KNOX ST
City	CASTRO VALLEY
State	CA
Zip	94546-7032
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00111 BLK: AR: 0415 PAGE: 0100
Legal Subdivision	KNOX
Legal Block	B
Legal Lot Number	11
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	1
Census Block	1011
Census Tract	431200

Owner

1856 Knox St is owned by two individuals who bought it in December 2021.

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

Owner of Record	2 Individual Names on File
Mailing Address	1152 SHERMAN ST, SAN JOSE, CA 95110-3432
Owner Type	Individual
Vesting	Community Property

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
Dec 8, 2021	Grant Deed, Transfer CHICAGO TITLE COMPANY
Oct 21, 2020	Quit Claim Deed, Transfer ORANGE COAST TITLE COMPANY/NTHRN CA, ORANGE COAST TITLE CO/NTHRN CA
Oct 21, 2020	Intrafamily Transfer, Transfer · VA Mortgage UNITED WHOLESALE MORTGAGE
Oct 21, 2020	Quit Claim Deed, Transfer ORANGE COAST TITLE COMPANY/NTHRN CA, ORANGE COAST TITLE CO/NTHRN CA
May 29, 2019	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Dec 8, 2021 · Amount on File
Deed Sale	Dec 8, 2021 · Amount on File
Prior Sale	Oct 21, 2020
Deed Document Number	2021391222
Prior Transfer Date	Oct 13, 2020
Prior Transfer Doc	0000279945
Record Updated	Oct 29, 2026

December 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Dec 8, 2021
Property Address	1856 KNOX ST, CASTRO VALLEY, CA 94546-7032
Document Number	0000391222
Map Reference	LB 17 PG 98
Instrument Date	Dec 3, 2021
Instrument	2021391222
Transaction Type	Transfer
Record Updated	Dec 30, 2021
Title Company	CHICAGO TITLE COMPANY

Transaction

Amount	Amount on Record
Tax	$847.00
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	1152 SHERMAN ST, SAN JOSE, CA 95110-3432

October 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Oct 21, 2020
Property Address	1856 KNOX ST, CASTRO VALLEY, CA 94546-7032
Document Number	0000279948
Instrument Date	Oct 13, 2020
Instrument	279948
Transaction Type	Transfer
Record Updated	Jan 13, 2021
Title Company	ORANGE COAST TITLE COMPANY/NTHRN CA, ORANGE COAST TITLE CO/NTHRN CA

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	1856 KNOX ST CASTRO VALLEY CA 945467032, CASTRO VALLEY, CA 94546-7032

October 2020: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ALAMEDA CA
Recording Date	Oct 21, 2020
Property Address	1856 KNOX ST, CASTRO VALLEY, CA 94546-7032
Document Number	0000279946
Map Reference	LB 17 PG 98
Instrument Date	Oct 13, 2020
Instrument	2020279946
Transaction Type	Transfer
Record Updated	Aug 19, 2021
Title Company	ORANGE COAST TTL CO OF NOCAL

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
Address	1856 KNOX ST, CASTRO VALLEY, CA 94546-7032

Mortgage

Document Number	0000279947
Date	Oct 21, 2020
Instrument	2020279947

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company

Agreement

Type	VA Mortgage
Amount	Amount on Record
Term	361 Months
Due	Nov 1, 2050

October 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Oct 21, 2020
Property Address	1856 KNOX ST, CASTRO VALLEY, CA 94546-7032
Document Number	0000279945
Instrument Date	Oct 13, 2020
Instrument	279945
Transaction Type	Transfer
Record Updated	Jan 13, 2021
Title Company	ORANGE COAST TITLE COMPANY/NTHRN CA, ORANGE COAST TITLE CO/NTHRN CA

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	1856 KNOX ST CASTRO VALLEY CA 945467032, CASTRO VALLEY, CA 94546-7032

May 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	May 29, 2019
Property Address	1856 KNOX ST, CASTRO VALLEY, CA 94546-7032
Document Number	0000099469
Instrument Date	May 27, 2019
Instrument	99469
Transaction Type	Transfer
Record Updated	Jun 14, 2019
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	Revocable Trust
Address	2747 DEL MEDIO CT #312 MOUNTAIN VIEW CA 940401042, 312, MOUNTAIN VIEW, CA 94040-1042

Tax Assessment & Valuation

The 2025 property tax bill for 1856 Knox St was $10,696, up 2.5% from the year before.

Source: Alameda County assessment roll, as of August 5, 2026

Property Jurisdictions

Type	Name
State	California
County	Alameda County
Unified School District	Hayward Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$833,463 (+2%) Land $250,039 Building $583,424
2025	$10,696.00 (+2.49%)	$817,123 Land $245,137 Building $571,986
2024	$10,436.00 (+1.79%)
2023	$10,252.00	$785,400 Land $235,620 Building $549,780	$766,710

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

Flood

FEMA maps place 1856 Knox St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.

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
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 15 policies
Community Rating System	Class 7 (15% premium discount)
Nearby Flood Policies	15 in force
Nearby Flood Claims	1 (1996)
Most Recent Claim	Dec 1996 · rainfall accumulation

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

The area around 1856 Knox St has no burnable land within ember reach, so its wildfire risk is not rated.

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

Wildfire Risk	Not rated no burnable land within 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 744 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 · Fixed Wireless, DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks.

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