635 Sonora Ct, Martinez, CA 94553 Property Records

Contra Costa County property record for 635 Sonora Ct, Martinez, CA 94553

Property Summary

Property Type	Single Family Home
Details	2 bd · 2 ba · 1,612 sqft · built 1963
Lot Size	0.149 acres (6,500 sqft)
Owner	2 Company Names on File
Last Sale	$217,000 (Mar 1994)
Tax Bill	$5,225 (2025)
Flood Zone	Zone X (moderate risk)
APN	`162-202-017-8`

Property Details

APN / Parcel Number

Primary APN	`162-202-017-8`
Alternative APN	`162-202-017`

Interior

Bedrooms	2 Beds
Full Baths	2 Baths
Total Rooms	8 Rooms
Stories	1 Story
Building Area	1,612 sqft Living Area
1st Floor Area	1,612 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1963
Effective Year Built	Effective 1970
Architectural Style	Ranch
Lot Area	6,500 sqft (0.149 acres)
Garage Type	Attached
Garage Area	400 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Street Address	635 SONORA CT
City	MARTINEZ
State	CA
Zip	94553-4423
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R175
Legal Description	TRACT 2402 LOT 21
Legal Subdivision	ALHAMBRA VALLEY ORCHARD UNIT #1
Legal Tract	2402
Legal Lot Number	21
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	3
Census Block	3007
Census Tract	321103

Owner

Source: Contra Costa County records · APN 162-202-017-8

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

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

Owner of Record	2 Company Names on File
Mailing Address	635 SONORA CT, MARTINEZ, CA 94553-4423
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Mar 11, 1994 · Amount on Record
Deed Sale	Mar 11, 1994 · Amount on Record
Deed Document Number	199470536
Last Transfer Date	Jul 15, 2008
Transfer Doc	0000158618
Record Updated	Sep 20, 2026

Tax Assessment & Valuation

Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 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 is set for property tax purposes and is not a market price estimate.

Year	Tax Bill	Assessed Value
2026		$377,024 (+2%) Land $228,833 Building $148,191
2025	$5,225.00 (+6.5%) Homeowner's exemption	$369,633 (+4.04%) Land $224,347 Building $145,286
2023	$4,906.00 (+1.62%) Homeowner's exemption	$355,283 Land $215,637 Building $139,646
2022	$4,828.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133211033, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 27 policies
Nearby Flood Policies	27 in force
Nearby Flood Claims	21 (1982–2023)
Claims Outside the SFHA	3 of 21
Most Recent Claim	Jan 2023 · Severe Winter Storms, Flooding, Landslides, And Mudslides
Claims by Event	Severe Winter Storms, Flooding, Landslides, And Mudslides, Jan 2023 · 2 claims Severe Storms, Flooding, Mud And Landslides, Jan 1997 · 4 claims Severe Winter Storms, Flooding, Landslides, Mud Flows, Jan 1995 · 4 claims

Wildfire

Wildfire Risk	Moderate above 57% of the US · lower than 65% of California
Wildfire Likelihood	0.2% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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, availability as of December 31, 2025 · sampled at 256 locations within half a mile · Last verified October 2026

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
AT&T Fixed Wireless · DSL · Fiber in parts of the area	100 / 20

May also be available: Radiate Holdings, T-Mobile USA, Unwired, Verizon.

Cell Coverage

5G (outdoors only) and 4G LTE

Drinking Water

Source: EPA Safe Drinking Water Information System via ECHO, 2026 Q3 · EPA community water system boundaries v3.0, 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.