55 Avon Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 55 Avon Ave, Mill Valley, CA 94941 · Last verified July 2026

Property Summary

Property Type	Single Family Home
Details	5 bd · 4.5 ba · 5,417 sqft · built 1989
Lot Size	1.42 acres (62,069 sqft)
Owner	2 Company Names on File
Tax Bill	$26,086 (2025)
Deeds & Mortgages	Sep 2019 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`029-231-23`

Property Details

APN / Parcel Number

Primary APN	`029-231-23`

Interior

Bedrooms	5 Beds
Full Baths	4.5 Baths
Half Baths	1 Half Bath
Building Area	5,417 sqft Living Area
Basement Area	696 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1989
Effective Year Built	Effective 1991
Architectural Style	Contemporary
Lot Area	62,069 sqft
Garage Area	1,150 sqft
Parking Spaces	4 Parking Spaces

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	55 AVON AVE
City	MILL VALLEY
State	CA
Zip	94941-1360
Property Category	Residential
Property Type	Residential > Single Family > Home
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	1
Census Block	1003
Census Tract	126100

Owner

Source: Marin County records · APN 029-231-23

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	10 WILLOW ST, 10, MILL VALLEY, CA 94941-2895
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Transfer Date	Mar 16, 2004
Transfer Doc	0000022830
Record Updated	Sep 20, 2026

September 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	55 AVON AVE, MILL VALLEY, CA 94941-1360
Transaction Type	Mortgage
Record Updated	Feb 05, 2021
Title Company	FIRST AMER TTL CO OF MARIN

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000032071
Date	Sep 04, 2019
Instrument	2019-0032071

Lender

Name	MUFG UNION BANK NA
Type	Bank
Address	SAN DIEGO, CA 92121

Agreement

Type	ARM
Amount	Amount Recorded
Term	360 Months
Due	Sep 01, 2049

Interest

Rate Type	Adjustable Rate
Rate	3.75%
Adjustable	Adjustable Rate Rider
Type Change Date	Sep 01, 2026
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	5.75%
Index	1-Year LIBOR
Max Rate	9.75%

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
Municipality	Mill Valley City
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		$1,372,515 (+2%) Land $139,705 Building $1,232,810
2025	$26,086.00 (+36.87%)	$1,345,604 (+4.04%) Land $136,966 Building $1,208,638
2023	$19,059.00 (-5.54%)	$1,293,358 Land $131,649 Building $1,161,709
2022	$20,176.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Marin County (06041C), updated October 18, 2023 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060411261001, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Special Flood Hazard Area	No
Flood Hazard	Minimal
500-Year Floodplain	No
Flood Insurance Cost	Premium on Record median of 10 individual NFIP policies nearby
Nearby Flood Policies	10 in force
Nearby Flood Claims	9 (1982–1998)
Claims Outside the SFHA	8 of 9
Most Recent Claim	May 1998, other causes
Claims By Storm	Severe Winter Storms And Flooding, Feb 1998 · 2 claims Severe Storms, Flood, Mudslides & High Tide, Jan 1982 · 4 claims

Wildfire

Wildfire Risk	Low above 20% of the US · above 11% of California
Wildfire Likelihood	About 1 in 4,545 per year
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, availability as of December 31, 2025 · Published October 2026 · based on 327 locations within about half a mile of this property

Provider	Technology	Download / Upload (Mbps)
AT&T	Fiber	5,000 / 5,000
Xfinity	Cable	2,000 / 250
Unwired	Fixed Wireless	300 / 25
Verizon	Fixed Wireless	300 / 20

May also be available at this address: T-Mobile USA, Etheric Communications, LLC.. Availability varies by address; speeds are provider-advertised maximums, not measured.