139 Rosti, Hercules, CA 94547 Property Records

Contra Costa County property record for 139 Rosti, Hercules, CA 94547

Property Summary

Property Type	Single Family Home
Details	5 bd · 3 ba · 2,200 sqft · built 1985
Lot Size	0.106 acres (4,635 sqft)
Owner	2 Individual Names on Record
Tax Bill	$13,603 (2025)
Deeds & Mortgages	Dec 2021 Mortgage Dec 2021 Sale + 1 more
Flood Zone	Zone X (minimal risk)
APN	`404-062-003-3`

Property Details

APN / Parcel Number

Primary APN	`404-062-003-3`
Alternative APN	`404-062-003`

Interior

Bedrooms	5 Beds
Full Baths	3 Baths
Total Rooms	11 Rooms
Stories	2 Stories
Building Area	2,200 sqft Living Area
1st Floor Area	1,158 sqft
2nd Floor Area	1,042 sqft

Exterior

Year Built	Built 1985
Effective Year Built	Effective 1996
Architectural Style	Cluster
Lot Area	4,635 sqft (0.106 acres)
Garage Type	Attached
Garage Area	415 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	139 ROSTI
City	HERCULES
State	CA
Zip	94547-3736
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Description	T5337A L0070 B
Legal Subdivision	5337A
Legal Tract	5337A
Legal Lot Number	0070
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	WEST CONTRA COSTA
Census Block Group	2
Census Block	2032
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	139 ROSTI, HERCULES, CA 94547-3736
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Dec 1, 2021	Intrafamily Transfer, Transfer · FHA Mortgage UNITED WHOLESALE MORTGAGE
Dec 1, 2021	Grant Deed, Transfer CHICAGO TITLE COMPANY
Jun 3, 2019	Quit Claim Deed, Transfer NOT AVAILABLE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Dec 1, 2021
Deed Sale	Dec 1, 2021
Prior Sale	Dec 1, 2021 · Amount on Record
Deed Document Number	2021327882
Prior Transfer Date	Nov 29, 2021
Prior Transfer Doc	0000327882
Record Updated	Oct 29, 2026

December 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Dec 1, 2021
Property Address	139 ROSTI, HERCULES, CA 94547-3736
Document Number	0000327882
Map Reference	MB 273 PG 28
Instrument Date	Nov 29, 2021
Instrument	2021-327882
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	CHICAGO TITLE COMPANY

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	139 ROSTI, HERCULES, CA 94547-3736

Mortgage

Document Number	0000327883
Date	Dec 1, 2021
Instrument	2021-327883

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company

Agreement

Type	FHA Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Dec 1, 2051

December 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Dec 1, 2021
Property Address	139 ROSTI, HERCULES, CA 94547-3736
Document Number	0000327881
Map Reference	MB 273 PG 28
Instrument Date	Nov 22, 2021
Instrument	2021-327881
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	CHICAGO TITLE COMPANY

Transaction

Amount	Amount Recorded
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	139 ROSTI, HERCULES, CA 94547-3736

June 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Jun 3, 2019
Property Address	139 ROSTI, HERCULES, CA 94547-3736
Document Number	0000081696
Instrument Date	May 9, 2019
Instrument	81696
Transaction Type	Transfer
Record Updated	Jun 11, 2019
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	139 ROSTI #WA HERCULES CA 945473736, WA, HERCULES, CA 94547-3736

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		$936,302 (+2%) Land $487,093 Building $449,209
2025	$13,603.00 (+5.41%)	$917,944 (+4.04%) Land $477,543 Building $440,401
2023	$12,905.00 (+1.11%)	$882,300 Land $459,000 Building $423,300
2022	$12,763.00

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.

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