166 Firestone Dr, Walnut Creek, CA 94598 Property Records

Contra Costa County property record for 166 Firestone Dr, Walnut Creek, CA 94598

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 1,963 sqft · built 1977
Lot Size	0.244 acres (10,625 sqft)
Owner	2 Company Names on File
Last Sale	$811,000 (Mar 2004)
Tax Bill	$13,534 (2025)
Flood Zone	Zone X (minimal risk)
APN	`135-271-050-1`

Property Details

APN / Parcel Number

Primary APN	`135-271-050-1`
Alternative APN	`135-271-050`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	10 Rooms
Stories	1 Story
Building Area	1,963 sqft Living Area
1st Floor Area	1,963 sqft

Exterior

Year Built	Built 1977
Effective Year Built	Effective 1985
Lot Area	10,625 sqft (0.244 acres)
View / Lot	Canal
Garage Type	Attached
Garage Area	536 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central

Location & Zoning

Street Address	166 FIRESTONE DR
City	WALNUT CREEK
State	CA
Zip	94598-3645
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10
Legal Description	TRACT 4710 LOT 50
Legal Subdivision	SUBDIVISION 4710
Legal Tract	4710
Legal Lot Number	50
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1000
Census Tract	355302

Owner

Source: Contra Costa County records · APN 135-271-050-1

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	166 FIRESTONE DR, WALNUT CREEK, CA 94598-3645
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Family Revocable Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Mar 25, 2004 · Amount on Record
Deed Sale	Mar 25, 2004 · Amount on Record
Prior Sale	Oct 12, 2000 · Amount on Record
Deed Document Number	200499830
Prior Transfer Date	Apr 28, 1999
Prior Transfer Doc	0000128074
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	Walnut Creek City
Unified School District	Mount Diablo 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		$1,176,113 (+2%) Land $783,116 Building $392,997
2025	$13,534.00 (+4.02%) Homeowner's exemption	$1,153,053 (+4.04%) Land $767,761 Building $385,292
2023	$13,011.00 (+0.88%) Homeowner's exemption	$1,108,281 Land $737,949 Building $370,332
2022	$12,897.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of October 12, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 8 (10% premium discount)
Nearby Flood Policies	2 in force

Wildfire

Wildfire Risk	Moderate above 56% of the US · lower than 67% of California
Wildfire Likelihood	0.1% 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 as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Radiate Holdings Cable · Fiber in parts of the area	1,500 / 50
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
T-Mobile USA Fixed Wireless	100 / 20

May also be available: AT&T.

Based on FCC filings for 423 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CONTRA COSTA WATER DISTRICT serves 210,500 people
Water Source	Surface water
Last State Inspection	Jan 2022
Lead	Under 1 ppb (2026–2028) 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.