1018 Rock Harbor Pt, Hercules, CA 94547 Property Records

Contra Costa County property record for 1018 Rock Harbor Pt, Hercules, CA 94547

Property Summary

Property TypeSingle Family Home
Details5 bd · 5 ba · 3,999 sqft · built 2003
Lot Size0.139 acres (6,060 sqft)
Owner2 Individual Names on Record
Last Sale$741,500 (Aug 2003)
Tax Bill$15,645 (2025)
Deeds & MortgagesMay 2021 Mortgage
Flood ZoneZone X (minimal risk)
APN404-580-055-6

Property Details

APN / Parcel Number

Primary APN404-580-055-6
Alternative APN
  • 404-580-055

Interior

Bedrooms5 Beds
Full Baths5 Baths
Total Rooms12 Rooms
Stories2 Stories
Building Area3,999 sqft Living Area
1st Floor Area1,703 sqft
2nd Floor Area2,296 sqft

Exterior

Year BuiltBuilt 2003
Effective Year BuiltEffective 2003
Architectural StyleCluster
Lot Area6,060 sqft (0.139 acres)
Garage TypeAttached
Garage Area698 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Heating SystemCentral

Location & Zoning

Street Address1018 ROCK HARBOR PT
CityHERCULES
StateCA
Zip94547-2619
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionT8593 L101
Legal SubdivisionSUBDIVISION 8593
Legal Tract8593
Legal Lot Number101
JurisdictionCONTRA COSTA CA
Township / Civil DivisionWEST CONTRA COSTA
Census Block Group1
Census Block1002
Census Tract392300

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 Record2 Individual Names on Record
Mailing Address1018 ROCK HARBOR PT, HERCULES, CA 94547-2619
OccupancyOwner Occupied
Owner TypeIndividual
VestingJoint Tenants

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleAug 22, 2003 · Amount on Record
Deed SaleAug 22, 2003 · Amount on Record
Deed Document Number2003417956
Last Transfer DateMay 13, 2021
Transfer Doc0000148603
Record UpdatedOct 29, 2026

May 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateMay 19, 2021
Property Address1018 ROCK HARBOR PT, HERCULES, CA 94547-2619
Document Number0000148603
Map ReferenceMB 443 PG 22
Instrument DateMay 13, 2021
Instrument2021-148603
Transaction TypeTransfer
Record UpdatedNov 3, 2022
Title CompanyAMERICAN SW TITLE, AMERICAN COAST TITLE

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants
Address1018 ROCK HARBOR PT, HERCULES, CA 94547-2619

Mortgage

Document Number0000148604
DateMay 19, 2021
Instrument2021-148604
Lender
NameLOANDEPOT.COM LLC
TypeMortgage Company
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term181 Months
DueJun 1, 2036

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountyContra Costa County
MunicipalityHercules City
Unified School DistrictWest Contra Costa Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$1,074,893 (+2%) Land $292,937 Building $781,956
2025$15,645.00 (+5.71%) Homeowner's exemption$1,053,818 (+4.04%) Land $287,194 Building $766,624
2023$14,800.00 (+1.32%) Homeowner's exemption$1,012,899 Land $276,043 Building $736,856
2022$14,607.00

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 ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Policies1 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 RiskLow
lower than 95% of the US · lower than 97% of California
Wildfire LikelihoodUnder 0.01% annual chance
ExposureNone
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 SystemEAST BAY MUD
serves 1,468,000 people · EPA ID CA0110005
Water SourceSurface water
Last State InspectionDec 2021
LeadUnder 1 ppb (2022–2024)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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 349 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
AT&T
Fiber
5,000 / 5,000
Xfinity
Cable
2,000 / 250
Unwired
Fixed Wireless
300 / 25
T-Mobile
Fixed Wireless
100 / 20

May also be available: Verizon.

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