523 Valley Run, Hercules, CA 94547 Property Records

Contra Costa County property record for 523 Valley Run, Hercules, CA 94547

Property Summary

Property Type	Townhouse
Details	3 bd · 2.5 ba · 1,434 sqft · built 1979
Lot Size	0.053 acres (2,300 sqft)
Owner	Company Name on Record
Last Sale	$253,000 (Oct 2008)
Tax Bill	$5,652 (2025)
Deeds & Mortgages	Mar 2021 Transfer Mar 2021 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`406-491-028-6`

Property Details

APN / Parcel Number

Primary APN	`406-491-028-6`
Alternative APN	`406-491-028`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	1,434 sqft Living Area
1st Floor Area	759 sqft
2nd Floor Area	675 sqft

Exterior

Year Built	Built 1979
Effective Year Built	Effective 1980
Architectural Style	Townhouse
Lot Area	2,300 sqft (0.053 acres)
Garage Type	Attached
Garage Area	399 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	523 VALLEY RUN
City	HERCULES
State	CA
Zip	94547-1446
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Townhouse
Local Zoning Code	PUD
Legal Description	T04876 L0028 B
Legal Subdivision	SUBDIVISION 4876
Legal Tract	04876
Legal Lot Number	28
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	WEST CONTRA COSTA
Census Block Group	3
Census Block	3004
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	Company Name on Record
Mailing Address	523 VALLEY RUN, HERCULES, CA 94547-1446
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Mar 19, 2021	Intrafamily Transfer, Transfer FIDELITY NATIONAL TITLE CO
Mar 16, 2021	Intrafamily Transfer, Transfer · Conventional Mortgage GOLDEN EMPIRE MORTGAGE INC

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Oct 23, 2008 · Amount on Record
Deed Sale	Oct 23, 2008 · Amount on Record
Prior Sale	Jul 31, 2008 · Amount on Record
Deed Document Number	2008234536
Last Transfer Date	Mar 10, 2021
Transfer Doc	0000084168
Record Updated	Oct 29, 2026

March 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Mar 19, 2021
Property Address	523 VALLEY RUN, HERCULES, CA 94547-1446
Document Number	0000084168
Map Reference	MB 209 PG 34
Instrument Date	Mar 10, 2021
Instrument	2021-084168
Transaction Type	Transfer
Record Updated	Jun 7, 2023
Title Company	FIDELITY NATIONAL TITLE CO

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	523 VALLEY RUN, HERCULES, CA 94547-1446

March 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Mar 16, 2021
Property Address	523 VALLEY RUN, HERCULES, CA 94547-1446
Document Number	0000078264
Map Reference	MB 209 PG 34
Instrument Date	Mar 10, 2021
Instrument	2021-078264
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

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
Address	523 VALLEY RUN, HERCULES, CA 94547-1446

Mortgage

Document Number	0000078265
Date	Mar 16, 2021
Instrument	2021-078265

Lender

Name	GOLDEN EMPIRE MORTGAGE INC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Apr 1, 2051

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		$324,419 (+2%) Land $61,726 Building $262,693
2025	$5,652.00 (+12.21%) Homeowner's exemption	$318,059 (+4.04%) Land $60,516 Building $257,543
2023	$5,037.00 (+1.08%) Homeowner's exemption	$305,711 Land $58,167 Building $247,544
2022	$4,983.00

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
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

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	0.02% 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 373 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
Starlink Satellite	280 / 30
T-Mobile Fixed Wireless	100 / 20
AT&T DSL	100 / 20

May also be available: Unwired.

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