206 William Ave, Larkspur, CA 94939 Property Records

Marin County property record for 206 William Ave, Larkspur, CA 94939

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,394 sqft · built 1943
Lot Size	0.107 acres (4,680 sqft)
Owner	2 Trust Names on File
Last Sale	$2,100,000 (Jun 2022)
Tax Bill	$29,046 (2025)
Deeds & Mortgages	Jun 2022 Sale & Mortgage
Flood Zone	Zone X (moderate risk)
APN	`021-172-15`

Property Details

APN / Parcel Number

Primary APN	`021-172-15`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Building Area	1,394 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1943
Effective Year Built	Effective 1963
Architectural Style	Contemporary
Lot Area	4,680 sqft (0.107 acres)

Location & Zoning

Street Address	206 WILLIAM AVE
City	LARKSPUR
State	CA
Zip	94939-1528
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	HEATHER GARDENS UNIT 3 LOT 000048 MAP 000005 00097
Legal Subdivision	HEATHER GARDENS 03
Legal Tract	3
Legal Lot Number	48
Jurisdiction	MARIN CA
Township / Civil Division	ROSS VALLEY
Census Block Group	1
Census Block	1014
Census Tract	120002

Owner

206 William Ave is owner-occupied and held in a trust since June 2022.

Source: Marin County records, as of July 13, 2026

Owner of Record	2 Trust Names on File
Mailing Address	206 WILLIAM AVE, LARKSPUR, CA 94939-1528
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Family 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

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 24, 2022 · Amount on File
Deed Sale	Jun 24, 2022 · Amount on File
Prior Sale	Aug 11, 1999 · Amount on File
Deed Document Number	202224483
Record Updated	Oct 29, 2026

June 2022: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MARIN CA
Recording Date	Jun 24, 2022
Property Address	206 WILLIAM AVE, LARKSPUR, CA 94939-1528
Document Number	0000024483
Map Reference	VOL 5 PG 97
Instrument Date	Jun 20, 2022
Instrument	2022-0024483
Transaction Type	Transfer
Record Updated	Jun 7, 2023
Title Company	FIDELITY NATIONAL TITLE CO

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$2,310.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Family Trust
Address	206 WILLIAM AVE, LARKSPUR, CA 94939-1528

Mortgage

Document Number	0000024484
Date	Jun 24, 2022
Instrument	2022-0024484

Lender

Name	WELLS FARGO BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jul 1, 2052

Tax Assessment & Valuation

The 2025 property tax bill for 206 William Ave was $29,046.

Source: Marin County assessment roll, as of July 13, 2026

Property Jurisdictions

Type	Name
State	California
County	Marin County
Municipality	Larkspur City
Elementary School District	Larkspur Elementary School District (KG - 08)
Secondary School District	Tamalpais Union High School District (09 - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$2,445,917 (+9.86%) Land $1,353,025 Building $1,092,892
2025	$29,046.00	$2,226,397 Land $1,326,500 Building $899,897
2023	$27,485.00 (+113.14%)	$2,139,960 Land $1,275,000 Building $864,960
2022	$12,895.00

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

Flood

FEMA maps place 206 William Ave in Zone X, an area of moderate flood risk, though there have been 2 flood claims nearby since 2014.

Source: FEMA National Flood Hazard Layer, effective October 18, 2023 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 23 policies
Nearby Flood Policies	23 in force
Nearby Flood Claims	2 (2014–2017)
Most Recent Claim	Jan 2017 · Severe Winter Storms, Flooding, And Mudslides

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

Wildfire risk around 206 William Ave 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	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	MARIN MUNICIPAL WATER DISTRICT serves 188,116 people · EPA ID CA2110002
Water Source	Surface water
Last State Inspection	Aug 2023
Lead	Under 1 ppb (2019–2021) 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 416 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
T-Mobile Fixed Wireless	100 / 20
AT&T DSL · Fiber in parts of the area	100 / 20

May also be available: Verizon.

Nearby Properties on William Ave

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures