1601 Castro St, Martinez, CA 94553 Property Records

Contra Costa County property record for 1601 Castro St, Martinez, CA 94553

Property Summary

Property Type	Apartments (5+ Units)
Details	3,486 sqft · built 1935
Lot Size	0.103 acres (4,500 sqft)
Owner	Individual Name on Record
Tax Bill	$8,670 (2025)
Deeds & Mortgages	Oct 2026 Transfer Oct 2023 Transfer
Flood Zone	Zone AO (high risk)
APN	`372-314-010-3`

Property Details

APN / Parcel Number

Primary APN	`372-314-010-3`
Alternative APN	`372-314-010`

Interior

Total Rooms	5 Rooms
Stories	1 Story
Building Area	3,486 sqft Living Area
Gross Area	2,800 sqft
1st Floor Area	2,800 sqft

Exterior

Year Built	Built 1935
Effective Year Built	Effective 1936
Exterior Material	Stucco
Construction Type	Frame
Roof Type	Flat
Lot Area	4,500 sqft (0.103 acres)
Lot Dimensions	100 ft deep x 45 ft wide
Garage Type	Attached
Garage Area	1,000 sqft

Utilities, Heating & Cooling

Cooling System	Wall Unit
Heating System	Floor/Wall Furnace

Location & Zoning

Street Address	1601 CASTRO ST
City	MARTINEZ
State	CA
Zip	94553-2441
Property Category	Residential
Property Type	Residential > Multi-Unit > Apartments (5+ Units)
Legal Description	ORIGINAL SURVEY POR LOTS 3 & 4 BLK 63 & ST
Legal Subdivision	TOWN MARTINEZ
Legal Block	63
Legal Lot Number	3,4
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	2
Census Block	2022
Census Tract	317000

Owner

Source: Contra Costa County records, as of October 21, 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 Record
Mailing Address	2407 PINON RD, RESCUE, CA 95672-9335
Owner Type	Individual
Vesting	Sole Owner

Deeds, Mortgages & Sale History

Date	Document
Oct 12, 2026	Quit Claim Deed, Transfer NONE LISTED ON DOCUMENT
Oct 10, 2023	Intrafamily Transfer, Transfer

Assessor's Deed Record

Deed Names	Name on Deed
Last Transfer Date	Oct 12, 2026
Transfer Doc	0000109353
Record Updated	Oct 29, 2026

October 2026: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Oct 12, 2026
Property Address	1601 CASTRO ST, MARTINEZ, CA 94553-2441
Document Number	0000109353
Instrument Date	Oct 12, 2026
Instrument	2026109353
Transaction Type	Transfer
Record Updated	Oct 20, 2026
Title Company	NONE LISTED ON DOCUMENT

Transaction

Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Quitclaim Intrafamily Transfer Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Sole Owner
Address	2407 PINON RD, RESCUE, CA 95672-9335

October 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Oct 10, 2023
Property Address	1601 CASTRO ST, MARTINEZ, CA 94553-2441
Document Number	0000099423
Instrument Date	Oct 10, 2023
Instrument	2023-099423
Transaction Type	Transfer
Record Updated	Oct 19, 2023

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
Relationship	Living Trust
Address	2407 PINON RD, RESCUE, CA 95672-9335

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	Martinez City
Unified School District	Martinez Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$426,526 (+2%) Land $125,915 Building $300,611
2025	$8,670.00 (+3.77%)	$418,164 (+4.04%) Land $123,447 Building $294,717
2023	$8,355.00 (-0.95%)	$401,928 Land $118,654 Building $283,274
2022	$8,435.00

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 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 70 policies
Nearby Flood Policies	70 in force
Nearby Flood Claims	51 (1980–2018)
Claims Outside the SFHA	1 of 51
Most Recent Claim	Sep 2018
Claims by Event	Severe Winter Storms, Flooding, And Mudslides, Feb 2017 · 6 claims Severe Storms, Flooding, Mudslides, And Landslides, Dec 2005 · 12 claims Severe Storms, Flooding, Mud And Landslides, Jan 1997 · 9 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

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

Wildfire Risk	Moderate above 48% of the US · lower than 71% 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 853 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · DSL	5,000 / 5,000
Xfinity Cable	2,000 / 250
Astound Broadband Fiber · Cable in parts of the area	1,500 / 1,500
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: Unwired.

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