535 Bertola St, Martinez, CA 94553 Property Records

Contra Costa County property record for 535 Bertola St, Martinez, CA 94553

Property Summary

Property Type	Single Family Home
Details	2 bd · 1 ba · 1,440 sqft · built 1940
Lot Size	0.108 acres (4,700 sqft)
Owner	Individual Name on File
Last Sale	$715,000 (Jul 2025)
Tax Bill	$8,061 (2025)
Deeds & Mortgages	Jan 2017 Transfer
Flood Zone	Zone AO (high risk)
APN	`372-221-009-7`

Property Details

APN / Parcel Number

Primary APN	`372-221-009-7`
Alternative APN	`372-221-009`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,440 sqft Living Area
1st Floor Area	1,440 sqft

Exterior

Year Built	Built 1940
Effective Year Built	Effective 1940
Lot Area	4,700 sqft (0.108 acres)
Garage Type	Attached
Garage Area	359 sqft
Parking Spaces	1 Parking Space

Location & Zoning

Street Address	535 BERTOLA ST
City	MARTINEZ
State	CA
Zip	94553-3242
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Description	BERTOLA TRACT 10148
Legal Subdivision	BERTOLA
Legal Tract	10148
Legal Block	148
Legal Lot Number	10
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	3
Census Block	3002
Census Tract	318000

Owner

Source: Contra Costa County records · APN 372-221-009-7

Assessment roll updated July 14, 2026 · Last verified August 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Individual Name on File
Mailing Address	535 BERTOLA ST, MARTINEZ, CA 94553-3242
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Sole Owner

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Jul 28, 2025 · Amount on Record
Deed Sale	Jul 28, 2025 · Amount on Record
Prior Sale	Jun 06, 2000 · Amount on Record
Deed Document Number	202575446
Prior Transfer Date	Nov 01, 2024
Prior Transfer Doc	0000120741
Record Updated	Sep 20, 2026

January 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Jan 31, 2017
Property Address	535 BERTOLA ST, MARTINEZ, CA 94553-3242
Document Number	0000020246
Instrument Date	Jan 31, 2017
Instrument	20246
Transaction Type	Transfer
Record Updated	Feb 06, 2017

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	535 BERTOLA ST MARTINEZ CA 945533242, MARTINEZ, CA 94553-3242

Tax Assessment & Valuation

Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified August 2026

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Municipality	Martinez City
Unified School District	Martinez Unified School District (KG - 12)

Tax Bill & Assessment History

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Year	Tax Bill	Assessed Value
2026		$715,000 (+18.18%) Land $450,000 Building $265,000
2025	$8,061.00 (+67.31%)	$605,000 (+73.54%) Land $400,000 Building $205,000
2023	$4,818.00 (+1.62%) Homeowner's exemption	$348,614 Land $96,379 Building $252,235
2022	$4,741.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), as of October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133180003, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone AO high risk · sheet flow 1–3 ft
100-Year Floodplain	Yes 1% annual chance
Floodway	No
Base Flood Elevation	Varies along the reach; see FIRM
Flood Insurance Requirement	Required federally backed loans
Flood Insurance Cost	Premium on Record median of 109 policies
Nearby Flood Policies	109 in force
Nearby Flood Claims	32 (1980–2019)
Claims Outside the SFHA	3 of 32
Most Recent Claim	Feb 2019
Claims by Event	Severe Storms, Flooding, Mudslides, And Landslides, Jan 2006 · 12 claims Severe Storms, Flooding, Mud And Landslides, Jan 1997 · 5 claims Severe Storms, Flood, Mudslides & High Tide, Jan 1982 · 6 claims

Wildfire

Wildfire Risk	Moderate above 43% of the US · lower than 74% of California
Wildfire Likelihood	0.08% annual chance
Exposure	Direct burnable vegetation at the parcel

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.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Radiate Holdings Fiber · Cable in parts of the area	1,500 / 1,500
Verizon Fixed Wireless	300 / 20
T-Mobile USA Fixed Wireless	100 / 20
AT&T Fixed Wireless · DSL · Fiber in parts of the area	100 / 20

May also be available: Unwired.

Based on FCC filings for 358 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System, water system CA0710006, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CITY OF MARTINEZ serves 31,015 people
Water Source	Purchased surface water from CONTRA COSTA WATER DISTRICT
Last State Inspection	Oct 2025
Lead	Under 1 ppb (2023–2025) 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.