536 Black Walnut Pl, Hercules, CA 94547 Property Records

Contra Costa County property record for 536 Black Walnut Pl, Hercules, CA 94547

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,411 sqft · built 2003
Lot Size	0.109 acres (4,764 sqft)
Owner	2 Company Names on Record
Last Sale	$370,000 (Dec 2012)
Tax Bill	$7,570 (2025)
Deeds & Mortgages	Jan 2024 Transfer Jun 2020 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`406-540-012-1`

Property Details

APN / Parcel Number

Primary APN	`406-540-012-1`
Alternative APN	`406-540-012`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	2,411 sqft Living Area
1st Floor Area	1,432 sqft
2nd Floor Area	979 sqft

Exterior

Year Built	Built 2003
Effective Year Built	Effective 2003
Architectural Style	Cluster
Lot Area	4,764 sqft (0.109 acres)
Garage Type	Attached
Garage Area	436 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central

Location & Zoning

Street Address	536 BLACK WALNUT PL
City	HERCULES
State	CA
Zip	94547-2300
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	T8422 L12
Legal Subdivision	SUBDIVISION 8422
Legal Tract	8422
Legal Lot Number	12
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	WEST CONTRA COSTA
Census Block Group	1
Census Block	1001
Census Tract	359203

Owner

Source: Contra Costa County records, as of July 14, 2026

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

Owner of Record	2 Company Names on Record
Mailing Address	536 BLACK WALNUT PL, HERCULES, CA 94547-2300
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Jan 26, 2024	Intrafamily Transfer, Transfer
Jun 26, 2020	Deed of Trust, Mortgage · Conventional Mortgage SIERRA PACIFIC MORTGAGE CO INC
Feb 26, 2020	Deed of Trust, Mortgage · Line of Credit THIRD FSLA OF CLEVELAND
Jan 20, 2021	Deed of Trust, Mortgage · Conventional Mortgage CARDINAL FINANCIAL COMPANY LP

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Dec 28, 2012 · Amount on Record
Deed Sale	Dec 28, 2012 · Amount on Record
Prior Sale	May 3, 2007 · Amount on Record
Deed Document Number	2012331917
Last Transfer Date	Jan 26, 2024
Transfer Doc	0000008233
Record Updated	Oct 29, 2026

January 2024: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Jan 26, 2024
Property Address	536 BLACK WALNUT PL, HERCULES, CA 94547-2300
Document Number	0000008233
Map Reference	MB 431 PG 41
Instrument Date	Jan 26, 2024
Instrument	2024-008233
Transaction Type	Transfer
Record Updated	Feb 6, 2024

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
Relationship	Revocable Trust
Address	536 BLACK WALNUT PL, HERCULES, CA 94547-2300

June 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	536 BLACK WALNUT PL, HERCULES, CA 94547-2300
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	FIDELITY TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000125636
Date	Jun 26, 2020
Instrument	2020-125636

Lender

Name	SIERRA PACIFIC MORTGAGE CO INC
Type	Mortgage Company
Address	FOLSOM, CA 95630

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	241 Months
Due	Jul 1, 2040

February 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	536 BLACK WALNUT PL, HERCULES, CA 94547-2300
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	TITLE365

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000036159
Date	Feb 26, 2020
Instrument	2020-036159

Lender

Name	THIRD FSLA OF CLEVELAND
Type	Lending Institution
Address	CLEVELAND, OH 44105

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	360 Months
Due	Feb 18, 2050

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

January 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	536 BLACK WALNUT PL, HERCULES, CA 94547-2300
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	FIDELITY NATIONAL TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	536 BLACK WALNUT PL, HERCULES, CA 94547-2300

Mortgage

Document Number	0000017196
Date	Jan 20, 2021
Instrument	2021-017196

Lender

Name	CARDINAL FINANCIAL COMPANY LP
Type	Mortgage Company
Address	WHITE OAK, TX 75693

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	181 Months
Due	Feb 1, 2036

Tax Assessment & Valuation

Source: Contra Costa County assessment roll, as of July 14, 2026

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Municipality	Hercules City
Unified School District	West Contra Costa Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$464,726 (+2%) Land $188,401 Building $276,325
2025	$7,570.00 (+6.25%) Homeowner's exemption	$455,614 (+4.04%) Land $184,707 Building $270,907
2023	$7,125.00 (+1.16%) Homeowner's exemption	$437,925 Land $177,536 Building $260,389
2022	$7,043.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

Source: FEMA National Flood Hazard Layer, effective October 12, 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	Low lower than 64% of the US · lower than 79% of California
Wildfire Likelihood	0.04% 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 494 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
T-Mobile Fixed Wireless	100 / 20
AT&T DSL	100 / 20

May also be available: Unwired.

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