909 Mellus St, Martinez, CA 94553 Property Records

Contra Costa County property record for 909 Mellus St, Martinez, CA 94553

Property Summary

Property Type	Religious, Church, Worship (Synagogue, Temple, Parsonage)
Details	3,508 sqft · built 1915
Lot Size	0.172 acres (7,500 sqft)
Owner	Company Name on File
Tax Bill	$683 (2025)
Flood Zone	Zone AO (high risk)
APN	`373-154-007`

Property Details

APN / Parcel Number

Primary APN	`373-154-007`
Alternative APN	`373-154-007-0`

Interior

Stories	1 Story
Building Area	3,508 sqft Gross Area
1st Floor Area	3,508 sqft

Exterior

Year Built	Built 1915
Effective Year Built	Effective 1940
Exterior Material	Stucco
Construction Type	Frame
Roof Type	Gable
Lot Area	7,500 sqft (0.172 acres)
View / Lot	Corner

Location & Zoning

Street Address	909 MELLUS ST
City	MARTINEZ
State	CA
Zip	94553-1744
Property Category	Other
Property Type	Other > Religious, Church, Worship (Synagogue, Temple, Parsonage)
Legal Description	VILLA SITES LOT 10
Legal Subdivision	VILLA SITES
Legal Lot Number	10
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1063
Census Tract	316000

Owner

909 Mellus St is owned by a company and is owner-occupied.

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

Owner of Record	Company Name on File
Mailing Address	909 MELLUS ST, MARTINEZ, CA 94553-1744
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Company

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
Record Updated	Sep 20, 2026

Tax Assessment & Valuation

The 2025 property tax bill for 909 Mellus St was $683 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		$330,743 (+2%) Land $114,828 Building $215,915
2025	$683.00 Additional exemption filed	$324,259 Land $112,577 Building $211,682
2023	$681.00 (-4.49%) Additional exemption filed	$311,669 Land $108,206 Building $203,463
2022	$713.00

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

Flood

FEMA maps place 909 Mellus St in Zone AO, a high-risk flood area; flood insurance is required for federally backed loans.

Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

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 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 909 Mellus St is low, with a 0.02% annual chance of 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	0.02% 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	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