139 Bay St, Hercules, CA 94547 Property Records

Contra Costa County property record for 139 Bay St, Hercules, CA 94547

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,468 sqft · built 1900
Lot Size	0.231 acres (10,043 sqft)
Owner	2 Individual Names on File
Last Sale	$450,000 (Sep 2002)
Tax Bill	$10,142 (2025)
Deeds & Mortgages	Oct 2023 Second Mortgage Apr 2021 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`404-170-020-6`

Property Details

APN / Parcel Number

Primary APN	`404-170-020-6`
Alternative APN	`404-170-020`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	1,468 sqft Living Area
1st Floor Area	896 sqft
2nd Floor Area	572 sqft

Exterior

Year Built	Built 1900
Effective Year Built	Effective 1984
Lot Area	10,043 sqft (0.231 acres)
Garage Type	Attached
Garage Area	299 sqft
Parking Spaces	1 Parking Space

Location & Zoning

Street Address	139 BAY ST
City	HERCULES
State	CA
Zip	94547-3718
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	H
Legal Description	T06102 L0020 B
Legal Subdivision	SUBDIVISION 6102
Legal Tract	06102
Legal Lot Number	20
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	WEST CONTRA COSTA
Census Block Group	1
Census Block	1000
Census Tract	359105

Historic Designation

Source: NPS National Register of Historic Places, as of August 1, 2026

Historic District	Within the Hercules Village listed 1980 · 40 contributing resources · NRIS 80000799

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

Owner

139 Bay St is owned and occupied by two individuals who bought it in September 2002.

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

Owner of Record	2 Individual Names on File
Mailing Address	139 BAY ST, HERCULES, CA 94547-3718
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

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
Oct 2, 2023	Deed of Trust, Mortgage · Stand-Alone Second Mortgage REDWOOD CU
Apr 19, 2021	Deed of Trust, Mortgage · Conventional Mortgage LOANDEPOT.COM LLC
Oct 14, 2019	Deed of Trust, Mortgage · Conventional Mortgage LOANDEPOT.COM LLC
Apr 7, 2017	Deed of Trust, Mortgage · Conventional with PMI HOMEWARD RESID'L

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Sep 19, 2002 · Amount on File
Deed Sale	Sep 19, 2002 · Amount on File
Prior Sale	Jul 17, 1996 · Amount on File
Deed Document Number	2002334246
Record Updated	Oct 29, 2026

October 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	139 BAY ST, HERCULES, CA 94547-3718
Transaction Type	Mortgage
Record Updated	Oct 10, 2023
Title Company	ACCOMODATION, ACCOMMODATION

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	139 BAY ST, HERCULES, CA 94547-3718
Investor	Possibly a Property Investor

Mortgage

Document Number	0000095209
Date	Oct 2, 2023
Instrument	2023-095209

Lender

Name	REDWOOD CU
Type	Credit Union
Address	SANTA ROSA, CA 95403

Agreement

Type	Stand-Alone Second Mortgage
Amount	Amount on Record
Term	121 Months
Due	Nov 1, 2033

April 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	139 BAY ST, HERCULES, CA 94547-3718
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	AMERICAN COAST TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	139 BAY ST, HERCULES, CA 94547-3718

Mortgage

Document Number	0000116652
Date	Apr 19, 2021
Instrument	2021-116652

Lender

Name	LOANDEPOT.COM LLC
Type	Mortgage Company
Address	FOOTHILL RANCH, CA 92610

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	May 1, 2051

October 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	139 BAY ST, HERCULES, CA 94547-3718
Document Number	0000194187
Instrument Date	Oct 14, 2019
Transaction Type	Mortgage
Record Updated	Nov 12, 2019
Title Company	AMERICAN COAST TITLE COMPANY, AMERICAN COAST TITLE CO.

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	139 BAY ST HERCULES CA 945473718, HERCULES, CA 94547-3718

Mortgage

Document Number	0000194187
Date	Nov 1, 2019
Instrument	194187

Lender

Name	LOANDEPOT.COM LLC
Type	Funding / Finance Company
Address	FOOTHILL RANCH, CA 92610

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Oct 31, 2049

April 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	139 BAY ST, HERCULES, CA 94547-3718
Document Number	0000065704
Instrument Date	Apr 7, 2017
Transaction Type	Mortgage
Record Updated	May 2, 2017
Title Company	TSI TITLE COMPANY/CA INC, TSI TITLE CO/CA INC

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Husband and Wife
Address	139 BAY ST HERCULES CA 945473718, HERCULES, CA 94547-3718

Mortgage

Document Number	0000065704
Date	Apr 17, 2017
Instrument	65704

Lender

Name	HOMEWARD RESID'L
Address	ADDISON, TX 75001

Agreement

Type	Conventional with PMI
Amount	Amount on Record
Term	300 Months
Due	Apr 16, 2042

Tax Assessment & Valuation

The 2025 property tax bill for 139 Bay St was $10,142.

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		$664,765 (+2%) Land $369,316 Building $295,449
2025	$10,142.00	$651,731 Land $362,075 Building $289,656
2023	$9,587.00 (+1.15%)	$626,425 Land $348,016 Building $278,409
2022	$9,478.00

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

Flood

FEMA maps place 139 Bay St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.

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	1 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

The area around 139 Bay St has no burnable land within ember reach, so its wildfire risk is not rated.

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 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.

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