503 Winslow St, Crockett, CA 94525 Property Records

Contra Costa County property record for 503 Winslow St, Crockett, CA 94525

Property Summary

Property Type	Apartments (5+ Units)
Details	3,465 sqft · built 1920
Lot Size	0.115 acres (5,000 sqft)
Owner	2 Individual Names on Record
Last Sale	$750,000 (Dec 2005)
Tax Bill	$17,694 (2025)
Flood Zone	Zone X (minimal risk)
APN	`354-075-009-2`

Property Details

APN / Parcel Number

Primary APN	`354-075-009-2`
Alternative APN	`354-075-009`

Interior

Total Rooms	5 Rooms
Stories	1 Story
Building Area	3,465 sqft Living Area
Gross Area	2,081 sqft
1st Floor Area	2,081 sqft

Exterior

Year Built	Built 1920
Effective Year Built	Effective 1920
Lot Area	5,000 sqft (0.115 acres)

Location & Zoning

Street Address	503 WINSLOW ST
City	CROCKETT
State	CA
Zip	94525-1249
Property Category	Residential
Property Type	Residential > Multi-Unit > Apartments (5+ Units)
Local Zoning Code	R6
Legal Description	TOWN OF CROCKETT 8 H
Legal Subdivision	CROCKETT
Legal Block	H
Legal Lot Number	8
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	WEST CONTRA COSTA
Census Block Group	3
Census Block	3007
Census Tract	357000

Owner

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

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

Owner of Record	2 Individual Names on Record
Mailing Address	41 LOCKTON LN, NOVATO, CA 94945-2727
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Dec 30, 2005 · Amount on Record
Deed Sale	Dec 30, 2005 · Amount on Record
Deed Document Number	2005501303
Prior Transfer Date	Jul 14, 2005
Prior Transfer Doc	0000501304
Record Updated	Sep 20, 2026

Tax Assessment & Valuation

Source: Contra Costa County assessment roll, as of July 14, 2026

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Unified School District	John Swett Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$1,045,420 (+2%) Land $348,470 Building $696,950
2025	$17,694.00 (+7.98%)	$1,024,923 (+4.04%) Land $341,638 Building $683,285
2023	$16,386.00 (+0.18%)	$985,126 Land $328,373 Building $656,753
2022	$16,357.00

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

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

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

Wildfire Risk	Low lower than 96% of the US · lower than 97.4% 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	EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005
Water Source	Surface water
Last State Inspection	Dec 2021
Lead	Under 1 ppb (2022–2024) 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. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 306 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber	5,000 / 5,000
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20