100 Shell Ridge Ct, Walnut Creek, CA 94598 Property Records

Contra Costa County property record for 100 Shell Ridge Ct, Walnut Creek, CA 94598

Property Summary

Property Type	Townhouse
Details	3 bd · 2.5 ba · 1,555 sqft · built 1973
Lot Size	0.086 acres (3,750 sqft)
Owner	Trust Name on File
Last Sale	$708,000 (Apr 2016)
Tax Bill	$9,919 (2025)
Deeds & Mortgages	Jul 2021 Mortgage Sep 2021 Transfer
Flood Zone	Zone X (minimal risk)
APN	`144-090-028-8`

Property Details

APN / Parcel Number

Primary APN	`144-090-028-8`
Alternative APN	`144-090-028`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	1,555 sqft Living Area
1st Floor Area	756 sqft
2nd Floor Area	799 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1973
Effective Year Built	Effective 1985
Architectural Style	Townhouse
Lot Area	3,750 sqft (0.086 acres)
Garage Type	Attached
Garage Area	408 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Street Address	100 SHELL RIDGE CT
City	WALNUT CREEK
State	CA
Zip	94598-2113
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Townhouse
Local Zoning Code	PUD
Legal Description	TRACT 4145 LOT 26
Legal Subdivision	SUBDIVISION 4145
Legal Tract	4145
Legal Lot Number	26
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1006
Census Tract	338204

Owner

100 Shell Ridge Ct, a townhouse, is owner-occupied and held in a trust since May 2021.

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

Owner of Record	Trust Name on File
Mailing Address	100 SHELL RIDGE CT, WALNUT CREEK, CA 94598-2113
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

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

Date	Document
Jul 15, 2021	Deed of Trust, Mortgage · Conventional Mortgage 1ST NORTHERN CALIFORNIA CU
Sep 17, 2021	Intrafamily Transfer, Transfer

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Apr 13, 2016 · Amount on File
Deed Sale	Apr 13, 2016 · Amount on File
Prior Sale	May 31, 2007 · Amount on File
Deed Document Number	201667175
Last Transfer Date	May 24, 2021
Transfer Doc	0000259900
Record Updated	Oct 29, 2026

July 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	100 SHELL RIDGE CT, WALNUT CREEK, CA 94598-2113
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	CHICAGO TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	100 SHELL RIDGE CT, WALNUT CREEK, CA 94598-2113

Mortgage

Document Number	0000199609
Date	Jul 15, 2021
Instrument	2021-199609

Lender

Name	1ST NORTHERN CALIFORNIA CU
Type	Credit Union
Address	MARTINEZ, CA 94553

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Aug 1, 2051

September 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Sep 17, 2021
Property Address	100 SHELL RIDGE CT, WALNUT CREEK, CA 94598-2113
Document Number	0000259900
Map Reference	MB 137 PG 1
Instrument Date	May 24, 2021
Instrument	2021-259900
Transaction Type	Transfer
Record Updated	Jun 7, 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	100 SHELL RIDGE CT, WALNUT CREEK, CA 94598-2113

Tax Assessment & Valuation

The 2025 property tax bill for 100 Shell Ridge Ct was $9,919 with a homeowner's exemption.

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

Year	Tax Bill	Assessed Value
2026		$854,879 (+2%) Land $560,261 Building $294,618
2025	$9,919.00 Homeowner's exemption	$838,118 Land $549,276 Building $288,842
2023	$9,577.00 (+0.48%) Homeowner's exemption	$805,575 Land $527,948 Building $277,627
2022	$9,531.00

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

Flood

FEMA maps place 100 Shell Ridge Ct in Zone X, an area of minimal flood risk.

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

Wildfire risk around 100 Shell Ridge Ct is low, with a 0.01% 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	0.01% 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	CONTRA COSTA WATER DISTRICT serves 210,500 people · EPA ID CA0710003
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, 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 395 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Astound Broadband Cable	1,500 / 50
Unwired Fixed Wireless	300 / 25
AT&T DSL	100 / 20

May also be available: Etheric Networks, Sonic Telecom, T-Mobile, Verizon.

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