1835 Knox St, Castro Valley, CA 94546 Property Records

Alameda County property record for 1835 Knox St, Castro Valley, CA 94546

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,302 sqft · built 1961
Lot Size	0.134 acres (5,850 sqft)
Owner	2 Individual Names on File
Last Sale	$830,000 (Sep 2020)
Tax Bill	$13,147 (2025)
Deeds & Mortgages	Oct 2019 Mortgage Sep 2020 Sale & Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`415-220-39`

Property Details

APN / Parcel Number

Primary APN	`415-220-39`
Alternative APN	`415-0220-039-00`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	5 Rooms
Stories	1 Story
Building Area	1,302 sqft Living Area

Exterior

Year Built	Built 1961
Effective Year Built	Effective 1961
Architectural Style	L-Shape
Exterior Material	Stucco
Construction Type	Wood
Roof Material	Composition Shingle
Lot Area	5,850 sqft (0.134 acres)
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Heating System	Floor/Wall Furnace
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	1835 KNOX ST
City	CASTRO VALLEY
State	CA
Zip	94546-7031
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00039 BLK: AR: 0415 PAGE: 0220
Legal Subdivision	KNOX
Legal Lot Number	7
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	2
Census Block	2001
Census Tract	431200

Owner

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	1835 KNOX ST, CASTRO VALLEY, CA 94546-7031
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Oct 25, 2019	Deed of Trust, Mortgage · Conventional Mortgage WELLS FARGO BANK NA
Sep 10, 2020	Grant Deed, Transfer · Conventional Mortgage MASON MCDUFFIE MORTGAGE CORP
May 2, 2018	Grant Deed, Transfer · Conventional Mortgage GUARANTEED RATE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Sep 10, 2020 · Amount on File
Deed Sale	Sep 10, 2020 · Amount on File
Prior Sale	May 2, 2018 · Amount on File
Deed Document Number	2020227366
Prior Transfer Date	Sep 9, 2013
Prior Transfer Doc	0000333818
Record Updated	Oct 29, 2026

October 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	1835 KNOX ST, CASTRO VALLEY, CA 94546-7031
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	WFG NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000218059
Date	Oct 25, 2019
Instrument	2019218059

Lender

Name	WELLS FARGO BANK NA
Type	Bank
Address	SIOUX FALLS, SD 57104

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Nov 1, 2049

Interest

Rate Type	Adjustable Rate
Rate	3.75%
Type Change Date	Nov 1, 2029
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	5.75%
Index	1-Year LIBOR
Max Rate	8.75%

September 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Sep 10, 2020
Property Address	1835 KNOX ST, CASTRO VALLEY, CA 94546-7031
Document Number	0000227366
Map Reference	MB 17 PG 87
Instrument Date	Sep 3, 2020
Instrument	2020227366
Transaction Type	Transfer
Record Updated	Aug 19, 2021
Title Company	OLD REPUBLIC 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	Joint Tenants
Address	1835 KNOX ST, CASTRO VALLEY, CA 94546-7031

Mortgage

Document Number	0000227367
Date	Sep 10, 2020
Instrument	2020227367

Lender

Name	MASON MCDUFFIE MORTGAGE CORP
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Oct 1, 2050

May 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	May 2, 2018
Property Address	1835 KNOX ST, CASTRO VALLEY, CA 94546-7031
Document Number	0000087727
Instrument Date	Apr 27, 2018
Instrument	87727
Transaction Type	Transfer
Record Updated	May 24, 2018
Title Company	LAWYERS TITLE

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$836.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	1835 KNOX ST CASTRO VALLEY CA 945467031, CASTRO VALLEY, CA 94546-7031

Mortgage

Document Number	87728
Date	May 2, 2018
Instrument	87728

Lender

Name	GUARANTEED RATE
Address	CHICAGO, IL 60613

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	May 1, 2048

Interest

Rate Type	Adjustable Rate
Rate	4%

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	Hayward Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$909,368 (+1.22%) Land $274,910 Building $641,458
2025	$13,147.00 (+18.46%) Homeowner's exemption	$898,408 (+4.04%) Land $269,522 Building $628,886
2023	$11,098.00 Homeowner's exemption	$863,531 Land $259,059 Building $604,472	$880,110

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
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 7 (15% premium discount)
Nearby Flood Policies	5 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	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.

Nearby Properties on Knox St

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures