20 Circle Way, Mill Valley, CA 94941 Property Records

Marin County property record for 20 Circle Way, Mill Valley, CA 94941

Property Summary

Property Type	Duplex
Details	4 bd · 4 ba · 3,117 sqft · built 1954
Lot Size	0.268 acres (11,674 sqft)
Owner	2 Company Names on File
Tax Bill	$10,168 (2025)
Deeds & Mortgages	Oct 2018 Transfer
Flood Zone	Zone X (minimal risk)
APN	`048-125-17`

Property Details

APN / Parcel Number

Primary APN	`048-125-17`

Interior

Bedrooms	4 Beds
Full Baths	4 Baths
Units	2 Units
Building Area	3,117 sqft Living Area
Basement Area	506 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1954
Effective Year Built	Effective 1960
Architectural Style	Contemporary
Lot Area	11,674 sqft (0.268 acres)

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	20 CIRCLE WAY
City	MILL VALLEY
State	CA
Zip	94941-3420
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Legal Description	L48&L49 B2 /B5P54 M #1 TAMARIN HIGHLAND
Legal Subdivision	TAMARIN HIGHLANDS SUB 1
Legal Tract	1
Legal Lot Number	48
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	3
Census Block	3003
Census Tract	128200

Owner

Source: Marin County records · APN 048-125-17

Assessment roll updated July 13, 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	20 CIRCLE WAY, MILL VALLEY, CA 94941-3420
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Family Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Record Updated	Sep 20, 2026

October 2018: Affidavit of Death, Transfer

Document Type	Affidavit of Death
Jurisdiction	MARIN CA
Recording Date	Oct 16, 2018
Property Address	20 CIRCLE WAY, MILL VALLEY, CA 94941-3420
Document Number	0000036103
Instrument Date	Oct 10, 2018
Instrument	36103
Transaction Type	Transfer
Record Updated	Oct 29, 2018
Title Company	ATTORNEY ONLY

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	20 CIRCLE WAY MILL VALLEY CA 949413420, MILL VALLEY, CA 94941-3420

Tax Assessment & Valuation

Source: Marin County records · Assessment roll updated July 13, 2026 · Last verified July 2026

Property Jurisdictions

Type	Name
State	California
County	Marin County
Elementary School District	Mill Valley Elementary School District (KG - 08)
Secondary School District	Tamalpais Union High School District (09 - 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		$485,155 (+2%) Land $193,991 Building $291,164
2025	$10,168.00 (+5.96%) Homeowner's exemption	$475,643 (+4.04%) Land $190,188 Building $285,455
2023	$9,596.00 (+4.46%) Homeowner's exemption	$457,176 Land $182,804 Building $274,372
2022	$9,186.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of October 18, 2023 · 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 6 (20% premium discount)
Nearby Flood Policies	9 in force
Nearby Flood Claims	16 (1979–2026)
Claims Outside the SFHA	7 of 16
Most Recent Claim	Jan 2026 · tidal / storm surge
Claims by Event	Coastal Storms, Floods, Slides & Tornadoes, Feb 1983 · 2 claims

Wildfire

Wildfire Risk	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	0.01% annual chance
Exposure	Direct burnable vegetation at the parcel

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
Unwired Fixed Wireless	300 / 25
AT&T DSL · Fiber in parts of the area	100 / 20

May also be available: Verizon.

Based on FCC filings for 589 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	MARIN MUNICIPAL WATER DISTRICT serves 188,116 people
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 as reported to EPA, 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. The full violation and enforcement history is in the system's EPA record.