310 Berrellesa St, Martinez, CA 94553 Property Records

Contra Costa County property record for 310 Berrellesa St, Martinez, CA 94553

Property Summary

Property Type	Apartments (5+ Units)
Details	61,512 sqft · built 2013
Lot Size	1.02 acres (44,866 sqft)
Owner	Company Name on File
Last Sale	$1,410,000 (Oct 2010)
Tax Bill	$41,217 (2025)
Flood Zone	Zone X (moderate risk)
APN	`373-243-001-6`

Property Details

APN / Parcel Number

Primary APN	`373-243-001-6`
Alternative APN	`373-243-001`

Interior

Total Rooms	49 Rooms
Stories	1 Story
Building Area	61,512 sqft Living Area
1st Floor Area	61,512 sqft

Exterior

Year Built	Built 2013
Effective Year Built	Effective 2014
Lot Area	44,866 sqft

Location & Zoning

Street Address	310 BERRELLESA ST
City	MARTINEZ
State	CA
Zip	94553-1021
Property Category	Residential
Property Type	Residential > Multi-Unit > Apartments (5+ Units)
Legal Description	ORIGINAL SURVEY BLK 141
Legal Subdivision	TIDE LAND SURV 04
Legal Block	141
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1021
Census Tract	316000

Owner

310 Berrellesa St, a residential property, is owned by a company that bought it in October 2010 and is owner-occupied.

Source: Contra Costa County records, as of July 14, 2026

Owner of Record	Company Name on File
Mailing Address	2220 OXFORD ST, BERKELEY, CA 94704-1389
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Partnership

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Oct 21, 2010 · Amount on File
Deed Sale	Oct 21, 2010 · Amount on File
Prior Sale	Sep 7, 2001 · Amount on File
Deed Document Number	2010234090
Prior Transfer Date	Feb 23, 2007
Prior Transfer Doc	0000081388
Record Updated	Oct 29, 2026

Tax Assessment & Valuation

The 2025 property tax bill for 310 Berrellesa St was $41,217 with an additional exemption.

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

Year	Tax Bill	Assessed Value
2026		$15,274,444 (+2.04%) Land $2,376,695 Building $12,897,749
2025	$41,217.00 Additional exemption filed	$14,968,374 Land $2,330,094 Building $12,638,280
2023	$40,628.00 (-6.79%) Additional exemption filed	$14,397,794 Land $2,239,614 Building $12,158,180
2022	$43,587.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

FEMA maps place 310 Berrellesa St in Zone X, an area of moderate flood risk, within 500 ft of a high-risk flood zone.

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 moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Nearest Special Flood Hazard Area	Zone AO, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 42 policies
Nearby Flood Policies	42 in force
Nearby Flood Claims	20 (1982–2017)
Claims Outside the SFHA	4 of 20
Most Recent Claim	Jan 2017 · Severe Winter Storms, Flooding, And Mudslides
Claims by Event	Severe Storms, Flooding, Mudslides, And Landslides, Jan 2006 · 3 claims Coastal Storms, Floods, Slides & Tornadoes, Mar 1983 · 5 claims Severe Storms, Flood, Mudslides & High Tide, Jan 1982 · 3 claims

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

Wildfire risk around 310 Berrellesa St is moderate, ranking above 58% of the US, with a 0.1% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Moderate above 58% of the US · lower than 65% of California
Wildfire Likelihood	0.1% annual chance
Exposure	Indirect within 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	CITY OF MARTINEZ serves 31,015 people · EPA ID CA0710006
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, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 371 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Astound Broadband Fiber · Cable in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 2,000
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
AT&T Fixed Wireless · DSL	100 / 20
T-Mobile Fixed Wireless	100 / 20