7550 Denison Pl, Castro Valley, CA 94552 Property Records

Alameda County property record for 7550 Denison Pl, Castro Valley, CA 94552

Property Summary

Property Type	Single Family Home
Details	5 bd · 3.5 ba · 2,765 sqft · built 1995
Lot Size	0.135 acres (5,894 sqft)
Owner	Company Name on File
Last Sale	$2,100,000 (Apr 2022)
Tax Bill	$5,873 (2025)
Deeds & Mortgages	Dec 2020 Mortgage Apr 2022 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`85A-6412-34`

Property Details

APN / Parcel Number

Primary APN	`85A-6412-34`
Alternative APN	`085A-6412-034-00`

Interior

Bedrooms	5 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	10 Rooms
Stories	2 Stories
Building Area	2,765 sqft Living Area

Exterior

Year Built	Built 1995
Effective Year Built	Effective 1995
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	5,894 sqft (0.135 acres)
Parking Spaces	3 Parking Spaces

Location & Zoning

Street Address	7550 DENISON PL
City	CASTRO VALLEY
State	CA
Zip	94552-5306
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00049 BLK: TR: 5974
Legal Subdivision	TRACT 5974
Legal Tract	5974
Legal Lot Number	49
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	4
Census Block	4008
Census Tract	430101

Owner

7550 Denison Pl is owned by a company that bought it in April 2022.

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

Owner of Record	Company Name on File
Mailing Address	7550 DENISON PL, CASTRO VALLEY, CA 94552-5306
Owner Type	Company
Vesting	Life Tenant

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 21, 2020	Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LOANS LLC
Apr 22, 2022	Grant Deed, Transfer · Conventional Mortgage GUARANTEED RATE AFFINITY LLC

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Apr 22, 2022 · Amount on File
Deed Sale	Apr 22, 2022 · Amount on File
Prior Sale	Nov 18, 1994 · Amount on File
Deed Document Number	202280968
Prior Transfer Date	May 25, 2004
Prior Transfer Doc	0000231959
Record Updated	Oct 29, 2026

December 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	7550 DENISON PL, CASTRO VALLEY, CA 94552-5306
Transaction Type	Mortgage
Record Updated	Jul 19, 2022
Title Company	AMROCK INC

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	7550 DENISON PL, CASTRO VALLEY, CA 94552-5306

Mortgage

Document Number	0000359091
Date	Dec 21, 2020
Instrument	2020359091

Lender

Name	QUICKEN LOANS LLC
Type	Mortgage Company
Address	DETROIT, MI 48226

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	359 Months
Due	Nov 1, 2050

Interest

Rate Type	Adjustable Rate
Rate	2.87%
Type Change Date	Nov 1, 2027
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	7.87%
Index	1-Year LIBOR
Max Rate	7.87%

April 2022: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Apr 22, 2022
Property Address	7550 DENISON PL, CASTRO VALLEY, CA 94552-5306
Document Number	0000080968
Map Reference	MB 195 PG 1-6
Instrument Date	Apr 18, 2022
Instrument	2022080968
Transaction Type	Transfer
Record Updated	Jul 19, 2022
Title Company	FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN 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	7550 DENISON PL, CASTRO VALLEY, CA 94552-5306

Mortgage

Document Number	0000080970
Date	Apr 22, 2022
Instrument	2022080970

Lender

Name	GUARANTEED RATE AFFINITY LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	May 1, 2052

Interest

Rate Type	Adjustable Rate
Rate	3.75%
Type Change Date	May 1, 2029
Change Frequency	6 Months
Min Rate At Change	2.75%
Max Rate At Change	8.75%
Index	Other
Max Rate	8.75%

Tax Assessment & Valuation

The 2025 property tax bill for 7550 Denison Pl was $5,873, up 2.4% 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	Castro Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$432,714 (+2.03%) Land $131,914 Building $307,800
2025	$5,873.00 (+2.41%) Homeowner's exemption	$424,095 Land $129,328 Building $301,767
2024	$5,735.00 (+1.85%)
2023	$5,631.00 Homeowner's exemption	$414,361 Land $124,308 Building $290,053	$1,985,490

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

FEMA maps place 7550 Denison Pl in Zone X, an area of minimal flood risk.

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

Wildfire risk around 7550 Denison Pl is high, ranking above 75% of the US, with a 0.5% annual chance of wildfire.

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

Wildfire Risk	High above 75% of the US · above 51% of California
Wildfire Likelihood	0.5% annual chance
Exposure	Direct burnable vegetation

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 496 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100
AT&T DSL	100 / 20

May also be available: Unwired.

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