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283 Newbury St, Hercules, CA 94547 Property Records

Contra Costa County property record for 283 Newbury St, Hercules, CA 94547

Property Summary

Property TypeSingle Family Home
Details3 bd · 2 ba · 1,388 sqft · built 1985
Lot Size0.098 acres (4,275 sqft)
OwnerCompany Name on Record
Tax Bill$9,391 (2025)
Deeds & MortgagesNov 2023 Transfer
Mar 2022 Transfer
Flood ZoneZone X (minimal risk)
APN406-130-004-4

Property Details

APN / Parcel Number

Primary APN406-130-004-4
Alternative APN
  • 406-130-004

Interior

Bedrooms3 Beds
Full Baths2 Baths
Total Rooms7 Rooms
Stories2 Stories
Building Area1,388 sqft Living Area
1st Floor Area936 sqft
2nd Floor Area452 sqft

Exterior

Year BuiltBuilt 1985
Effective Year BuiltEffective 1985
Lot Area4,275 sqft (0.098 acres)
Garage TypeAttached
Garage Area462 sqft
Parking Spaces2 Parking Spaces

Location & Zoning

Street Address283 NEWBURY ST
CityHERCULES
StateCA
Zip94547-3671
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeP1
Legal DescriptionT05270 L0029 B
Legal SubdivisionSUBDIVISION 5270
Legal Tract05270
Legal Lot Number29
JurisdictionCONTRA COSTA CA
Township / Civil DivisionWEST CONTRA COSTA
Census Block Group2
Census Block2004
Census Tract359203

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 RecordCompany Name on Record
Mailing Address11990 HILLTOP DR, GRASS VALLEY, CA 95949-7420
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

DateDocument
Nov 3, 2023Intrafamily Transfer, Transfer
Mar 7, 2022Intrafamily Transfer, Transfer

Assessor's Deed Record

Deed NamesName on Deed
Last Transfer DateApr 25, 1995
Transfer Doc0000088128
Record UpdatedOct 29, 2026

November 2023: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateNov 3, 2023
Property Address283 NEWBURY ST, HERCULES, CA 94547-3671
Document Number0000118944
Map ReferenceMB 259 PG 28
Instrument DateOct 29, 2023
Instrument2023-118944
Transaction TypeTransfer
Record UpdatedNov 15, 2023

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer
  • Multiple Parcels

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address11990 HILLTOP DR, GRASS VALLEY, CA 95949-7420

March 2022: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateMar 7, 2022
Property Address283 NEWBURY ST, HERCULES, CA 94547-3671
Document Number0000040548
Map ReferenceMB 259 PG 28
Instrument DateFeb 11, 2022
Instrument2022-040548
Transaction TypeTransfer
Record UpdatedNov 3, 2022

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address11990 HILLTOP DR, GRASS VALLEY, CA 95949-7420

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 DistrictJohn Swett Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$717,651 (+2%) Land $414,030 Building $303,621
2025$9,391.00 (+2.28%)$703,580 (+4.04%) Land $405,912 Building $297,668
2023$9,182.00 (+0.03%)$676,260 Land $390,150 Building $286,110
2022$9,179.00

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 ZoneZone X
minimal risk
Nearest Special Flood Hazard AreaZone AE, within 500 ft
Flood Insurance RequirementNot 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 RiskLow
lower than 67% of the US · lower than 81% of California
Wildfire Likelihood0.02% 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 373 locations within half a mile, as of December 31, 2025

ProviderMax 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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