1139 Williams, Hercules, CA 94547 Property Records

Contra Costa County property record for 1139 Williams, Hercules, CA 94547

Property Summary

Property Type	Single Family Home
Details	5 bd · 3 ba · 2,188 sqft · built 1986
Lot Size	0.103 acres (4,500 sqft)
Owner	2 Individual Names on Record
Last Sale	$900,000 (Feb 2022)
Tax Bill	$12,704 (2025)
Deeds & Mortgages	Sep 2020 Mortgage Feb 2022 Sale & Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`404-071-023`

Property Details

APN / Parcel Number

Primary APN	`404-071-023`
Alternative APN	`404-071-023-0`

Interior

Bedrooms	5 Beds
Full Baths	3 Baths
Total Rooms	12 Rooms
Stories	2 Stories
Building Area	2,188 sqft Living Area
1st Floor Area	1,145 sqft
2nd Floor Area	1,043 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1986
Effective Year Built	Effective 1987
Architectural Style	Traditional
Exterior Material	Stucco
Roof Material	Wood Shingle
Lot Area	4,500 sqft (0.103 acres)
Garage Type	Attached
Garage Area	428 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C
Heating Fuel	Gas
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	1139 WILLIAMS
City	HERCULES
State	CA
Zip	94547-3733
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Description	T5337A L0023 B
Legal Subdivision	SUBDIVISION 5337
Legal Tract	5337A
Legal Lot Number	0023
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	WEST CONTRA COSTA
Census Block Group	2
Census Block	2029
Census Tract	359105

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 Individual Names on Record
Mailing Address	1139 WILLIAMS, HERCULES, CA 94547-3733
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Date	Document
Sep 17, 2020	Deed of Trust, Mortgage · Conventional Mortgage ONE AMERICAN BANK
Feb 8, 2022	Grant Deed, Transfer · Conventional Mortgage ROCKET MORTGAGE LLC
Aug 28, 2019	Deed of Trust, Mortgage · Conventional Mortgage PACIFIC SVC CU
Nov 16, 2017	Deed of Trust, Mortgage PACIFIC SVC EMPS CU

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Feb 8, 2022 · Amount on Record
Deed Sale	Feb 8, 2022 · Amount on Record
Prior Sale	Apr 15, 2016 · Amount on Record
Deed Document Number	202224124
Prior Transfer Date	Mar 24, 2011
Prior Transfer Doc	0000062876
Record Updated	Oct 29, 2026

September 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	1139 WILLIAMS, HERCULES, CA 94547-3733
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	CALATLANTIC TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1139 WILLIAMS, HERCULES, CA 94547-3733

Mortgage

Document Number	0000207484
Date	Sep 17, 2020
Instrument	2020-207484

Lender

Name	ONE AMERICAN BANK
Type	Bank
Address	SAN FRANCISCO, CA 94108

Agreement

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

February 2022: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Feb 8, 2022
Property Address	1139 WILLIAMS, HERCULES, CA 94547-3733
Document Number	0000024124
Map Reference	MB 273 PG 28
Instrument Date	Feb 4, 2022
Instrument	2022-024124
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transaction

Amount	Amount Recorded
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	1139 WILLIAMS, HERCULES, CA 94547-3733

Mortgage

Document Number	0000024125
Date	Feb 8, 2022
Instrument	2022-024125

Lender

Name	ROCKET MORTGAGE LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Mar 1, 2052

August 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	1139 WILLIAMS, HERCULES, CA 94547-3733
Document Number	0000200934
Instrument Date	Aug 28, 2019
Transaction Type	Mortgage
Record Updated	Nov 21, 2019
Title Company	FIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	1139 WILLIAMS HERCULES CA 945473733, HERCULES, CA 94547-3733

Mortgage

Document Number	0000200934
Date	Nov 12, 2019
Instrument	200934

Lender

Name	PACIFIC SVC CU
Address	CONCORD, CA 94519

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Nov 11, 2049

November 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	1139 WILLIAMS, HERCULES, CA 94547-3733
Document Number	0000220466
Instrument Date	Nov 16, 2017
Transaction Type	Mortgage
Record Updated	Nov 28, 2017
Title Company	FIRST AMERICAN TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	1139 WILLIAMS HERCULES CA 945473733, HERCULES, CA 94547-3733

Mortgage

Document Number	0000220466
Date	Nov 22, 2017
Instrument	220466

Lender

Name	PACIFIC SVC EMPS CU
Type	Credit Union
Address	CONCORD, CA 94519

Agreement

Amount	Amount Recorded
Term	360 Months
Due	Nov 21, 2047

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		$855,000 (-) Land $475,000 Building $380,000
2025	$12,704.00 (+1.92%) Homeowner's exemption	$855,000 (-) Land $475,001 Building $379,999
2023	$12,465.00 (+89.58%) Homeowner's exemption	$855,000 Land $475,000 Building $380,000
2022	$6,575.00

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 · 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
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	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	0.01% 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 505 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
AT&T Fixed Wireless · DSL	100 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: Sonic Telecom, Unwired.

Nearby Properties on Williams

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

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