57 Cornelia Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 57 Cornelia Ave, Mill Valley, CA 94941 · Last verified July 2026

Property Summary

Property Type	Duplex
Details	2 bd · 2 ba · 1,349 sqft · built 1939
Lot Size	0.27 acres (11,774 sqft)
Owner	Individual Name on File
Tax Bill	$3,720 (2025)
Deeds & Mortgages	Dec 2017 Line of Credit
Flood Zone	Zone X (minimal risk)
APN	`027-221-33`

Property Details

APN / Parcel Number

Primary APN	`027-221-33`

Interior

Bedrooms	2 Beds
Full Baths	2 Baths
Total Rooms	7 Rooms
Units	2 Units
Stories	1 Story
Building Area	1,349 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1939
Effective Year Built	Effective 1939
Architectural Style	Duplex Single
Exterior Material	Wood Siding
Construction Type	Frame
Roof Material	Wood Shingle
Lot Area	11,774 sqft (0.27 acres)
Deck Area	112 sqft
Patio Area	112 sqft

Utilities, Heating & Cooling

Heating System	Floor/Wall Furnace

Location & Zoning

Street Address	57 CORNELIA AVE
City	MILL VALLEY
State	CA
Zip	94941-1801
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Legal Description	MAP C3 606
Legal Subdivision	TAMALPAIS LAND & WATER CO MAP
Legal Lot Number	150
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	4
Census Block	4001
Census Tract	127000

Owner

Source: Marin County records · APN 027-221-33

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	Individual Name on File
Mailing Address	57 CORNELIA AVE, MILL VALLEY, CA 94941-1801
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

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

December 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	57 CORNELIA AVE, MILL VALLEY, CA 94941-1801
Transaction Type	Mortgage
Record Updated	Feb 05, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000048411
Date	Dec 06, 2017
Instrument	2017-0048411

Lender

Name	CITIBANK NA
Type	Bank
Address	O FALLON, MO 63368

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

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		$180,232 (+2%) Land $88,932 Building $91,300
2025	$3,720.00 (-2.29%) Homeowner's exemption	$176,699 (+4.04%) Land $87,189 Building $89,510
2023	$3,807.00 (+11.81%) Homeowner's exemption	$169,839 Land $83,804 Building $86,035
2022	$3,405.00

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 060411270004, 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	2 (2005–2007)
Claims Outside the SFHA	1 of 2
Most Recent Claim	May 2007, other causes

Wildfire

Wildfire Risk	Low above 20% of the US · above 11% of California
Wildfire Likelihood	About 1 in 3,226 per year
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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 595 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
Verizon	Fixed Wireless	300 / 20

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