31 Sierra Ln, Walnut Creek, CA 94596 Property Records

Contra Costa County property record for 31 Sierra Ln, Walnut Creek, CA 94596

Property Summary

Property Type	Single Family Home
Details	3 bd · 1 ba · 915 sqft · built 1953
Lot Size	0.286 acres (12,441 sqft)
Owner	Individual Name on Record
Last Sale	$700,000 (Jun 2019)
Tax Bill	$9,744 (2025)
Deeds & Mortgages	Jun 2020 Mortgage Jun 2019 Sale + 1 more
Flood Zone	Zone AE (high risk)
APN	`179-040-017-8`

Property Details

APN / Parcel Number

Primary APN	`179-040-017-8`
Alternative APN	`179-040-017`

Interior

Bedrooms	3 Beds
Full Baths	1 Bath
Total Rooms	6 Rooms
Stories	1 Story
Building Area	915 sqft Living Area
1st Floor Area	915 sqft

Exterior

Year Built	Built 1953
Effective Year Built	Effective 1963
Lot Area	12,441 sqft (0.286 acres)
Garage Type	Attached
Garage Area	230 sqft
Parking Spaces	1 Parking Space

Location & Zoning

Street Address	31 SIERRA LN
City	WALNUT CREEK
State	CA
Zip	94596-4910
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10
Legal Description	WALNUT HGTS POR LOT 6 BLK 2
Legal Subdivision	WALNUT HEIGHTS
Legal Block	2
Legal Lot Number	6
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1017
Census Tract	343002

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	Individual Name on Record
Mailing Address	31 SIERRA LN, WALNUT CREEK, CA 94596-4910
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Jun 3, 2020	Deed of Trust, Mortgage · Conventional Mortgage WELLS FARGO BANK NA
Jun 19, 2019	Grant Deed, Transfer PLACER TITLE COMPANY, PLACER TITLE CO.
Jun 19, 2019	Affidavit of Death, Transfer PLACER TITLE COMPANY, PLACER TITLE CO.

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jun 19, 2019 · Amount on Record
Deed Sale	Jun 19, 2019 · Amount on Record
Deed Document Number	201992940
Record Updated	Sep 20, 2026

June 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	31 SIERRA LN, WALNUT CREEK, CA 94596-4910
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	WFG TITLE INSURANCE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000105795
Date	Jun 3, 2020
Instrument	2020-105795

Lender

Name	WELLS FARGO BANK NA
Type	Bank
Address	SIOUX FALLS, SD 57104

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jul 1, 2050

Interest

Rate Type	Adjustable Rate
Rate	3.37%
Type Change Date	Jul 1, 2027
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	8.37%
Index	1-Year LIBOR
Max Rate	8.37%

June 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Jun 19, 2019
Property Address	31 SIERRA LN, WALNUT CREEK, CA 94596-4910
Document Number	0000092940
Instrument Date	Jun 16, 2019
Instrument	92940
Transaction Type	Transfer
Record Updated	Jun 28, 2019
Title Company	PLACER TITLE COMPANY, PLACER TITLE CO.

Transaction

Amount	Amount Recorded
Tax	$770.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	108 VIA SERENA ALAMO CA 945071842, ALAMO, CA 94507-1842

June 2019: Affidavit of Death, Transfer

Document Type	Affidavit of Death
Jurisdiction	CONTRA COSTA CA
Recording Date	Jun 19, 2019
Property Address	31 SIERRA LN, WALNUT CREEK, CA 94596-4910
Document Number	0000092939
Instrument Date	May 21, 2019
Instrument	92939
Transaction Type	Transfer
Record Updated	Jun 28, 2019
Title Company	PLACER TITLE COMPANY, PLACER TITLE CO.

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	2507 S FULTON PL TULSA OK 741143750, TULSA, OK 74114-3750

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	Walnut Creek City
Secondary School District	Acalanes Union High School District (09 - 12)
Elementary School District	Walnut Creek Elementary School District (KG - 08)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$796,475 (+2%) Land $739,586 Building $56,889
2025	$9,744.00 (+3.89%)	$780,859 (+4.04%) Land $725,085 Building $55,774
2023	$9,379.00 (+2.18%)	$750,539 Land $696,930 Building $53,609
2022	$9,179.00

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 AE high risk
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 45 policies
Community Rating System	Class 8 (10% premium discount)
Nearby Flood Policies	45 in force
Nearby Flood Claims	25 (1982–2023)
Claims Outside the SFHA	1 of 25
Most Recent Claim	Feb 2023 · Severe Winter Storms And Mudslides
Claims by Event	Severe Winter Storms, Flooding, Landslides, And Mudslides, Dec 2022 · 2 claims Severe Winter Storms, Flooding, And Mudslides, Jan 2017 · 2 claims Severe Winter Storm, Mud & Land Slides, & Flooding, Feb 1993 · 8 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	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	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 433 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Sonic Telecom Fiber	10,000 / 10,000
Xfinity Cable	2,000 / 2,000
Astound Broadband Cable · Fiber in parts of the area	1,500 / 50
Unwired Fixed Wireless	300 / 25
T-Mobile Fixed Wireless	100 / 20
AT&T DSL · Fiber, Fixed Wireless in parts of the area	100 / 20

May also be available: Etheric Networks, Verizon.

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