2204 170th Ave, Castro Valley, CA 94546 Property Records

Alameda County property record for 2204 170th Ave, Castro Valley, CA 94546

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 1,839 sqft · built 1950
Lot Size	0.153 acres (6,650 sqft)
Owner	2 Individual Names on Record
Last Sale	$989,000 (Dec 2025)
Tax Bill	$4,768 (2025)
Deeds & Mortgages	Apr 2025 Mortgage Dec 2025 Sale & Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`80A-233-1`

Property Details

APN / Parcel Number

Primary APN	`80A-233-1`
Alternative APN	`080A-0233-001-00`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	8 Rooms
Stories	1 Story
Building Area	1,839 sqft Living Area

Exterior

Year Built	Built 1950
Effective Year Built	Effective 1975
Architectural Style	L-Shape
Exterior Material	Wood Siding
Construction Type	Wood
Roof Material	Composition Shingle
Lot Area	6,650 sqft (0.153 acres)
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Heating System	Forced Air with A/C
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	2204 170TH AVE
City	CASTRO VALLEY
State	CA
Zip	94546-3807
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00001 BLK: AR: 080A PAGE: 0233
Legal Subdivision	EL PORTAL
Legal Lot Number	501
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	3
Census Block	3019
Census Tract	430500

Owner

Source: Alameda County records, as of October 13, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Individual Names on Record
Mailing Address	2204 170TH AVE, CASTRO VALLEY, CA 94546-3807
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Date	Document
Apr 1, 2025	Deed of Trust, Mortgage CHRISTOPHER BROWN
Dec 4, 2025	Grant Deed, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE
Jan 22, 2018	Quit Claim Deed, Transfer ATTORNEY ONLY
Jan 22, 2018	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Dec 4, 2025 · Amount on Record
Deed Sale	Dec 4, 2025 · Amount on Record
Prior Sale	Jul 30, 1996 · Amount on Record
Deed Document Number	2025153415
Prior Transfer Date	Mar 13, 2025
Prior Transfer Doc	0000038927
Record Updated	Oct 29, 2026

April 2025: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	2204 170TH AVE, CASTRO VALLEY, CA 94546-3807
Transaction Type	Mortgage
Record Updated	Jan 6, 2026

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	2204 170TH AVE, CASTRO VALLEY, CA 94546-3807

Mortgage

Document Number	0000044533
Date	Apr 1, 2025
Instrument	2025044533

Lender

Name	CHRISTOPHER BROWN
Type	Private Party
Address	6135 BUENA VISTA AVE, OAKLAND, CA 94618

Agreement

Amount	Amount Recorded

December 2025: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Dec 4, 2025
Property Address	2204 170TH AVE, CASTRO VALLEY, CA 94546-3807
Document Number	0000153415
Map Reference	MB 8 PG 77
Instrument Date	Dec 1, 2025
Instrument	2025153415
Transaction Type	Transfer
Record Updated	Jan 6, 2026
Title Company	CHICAGO TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$1,087.90
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	2204 170TH AVE, CASTRO VALLEY, CA 94546-3807

Mortgage

Document Number	0000153416
Date	Dec 4, 2025
Instrument	2025153416

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jan 1, 2056

January 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Jan 22, 2018
Property Address	2204 170TH AVE, CASTRO VALLEY, CA 94546-3807
Document Number	0000012351
Instrument Date	Jan 9, 2018
Instrument	12351
Transaction Type	Transfer
Record Updated	Feb 5, 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	Revocable Trust
Address	2204 170TH AVE CASTRO VALLEY CA 945463807, CASTRO VALLEY, CA 94546-3807

January 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Jan 22, 2018
Property Address	2204 170TH AVE, CASTRO VALLEY, CA 94546-3807
Document Number	0000012350
Instrument Date	Jan 9, 2018
Instrument	12350
Transaction Type	Transfer
Record Updated	Feb 5, 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	Community Property
Address	2204 170TH AVE CASTRO VALLEY CA 945463807, CASTRO VALLEY, CA 94546-3807

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	San Lorenzo Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$982,000 (+194.22%) Land $296,700 Building $692,300
2025	$4,768.00 (+4.01%) Homeowner's exemption	$333,766 (+4.04%) Land $97,552 Building $236,214
2023	$4,584.00 Homeowner's exemption	$320,808 Land $93,765 Building $227,043	$749,880

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

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

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 796 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

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

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