80 Adams Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 80 Adams Ave, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	2 bd · 2 ba · 2,218 sqft · built 1940
Lot Size	0.273 acres (11,875 sqft)
Owner	2 Trust Names on File
Last Sale	$1,725,000 (Oct 2020)
Tax Bill	$23,365 (2025)
Deeds & Mortgages	Oct 2020 Sale Jul 2020 Transfer
Flood Zone	Zone X (minimal risk)
APN	`045-142-01`

Property Details

APN / Parcel Number

Primary APN	`045-142-01`

Interior

Bedrooms	2 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	2 Stories
Building Area	2,218 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1940
Effective Year Built	Effective 1984
Architectural Style	Contemporary
Exterior Material	Wood
Roof Material	Composition Shingle
Lot Area	11,875 sqft (0.273 acres)
Deck Area	1,000 sqft

Utilities, Heating & Cooling

Heating System	Central
Heating Fuel	Gas
Sewer	Septic
Water Source	Commercial

Location & Zoning

Street Address	80 ADAMS AVE
City	MILL VALLEY
State	CA
Zip	94941-1784
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Description	LOT 59,61
Legal Subdivision	MUIR WOODS PARK 05
Legal Lot Number	59,61
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	1
Census Block	1001
Census Tract	128200

Historic Designation

Source: NPS National Register of Historic Places, as of August 1, 2026

Listed Area	Within Dipsea Trail, The listed 2010 · 1 contributing resources · NRIS 10000356

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

Owner

80 Adams Ave is owner-occupied and held in a trust since October 2020.

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

Owner of Record	2 Trust Names on File
Mailing Address	80 ADAMS AVE, MILL VALLEY, CA 94941-1784
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Living 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

Date	Document
Oct 30, 2020	Grant Deed, Transfer OLD REPUBLIC TITLE
Jul 17, 2020	Quit Claim Deed, Transfer OTHER

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Oct 30, 2020 · Amount on File
Deed Sale	Oct 30, 2020 · Amount on File
Deed Document Number	202053699
Prior Transfer Date	Oct 30, 1996
Prior Transfer Doc	0000037498
Record Updated	Oct 29, 2026

October 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MARIN CA
Recording Date	Oct 30, 2020
Property Address	80 ADAMS AVE, MILL VALLEY, CA 94941-1784
Document Number	0000053699
Instrument Date	Oct 22, 2020
Instrument	53699
Transaction Type	Transfer
Record Updated	Nov 12, 2020
Title Company	OLD REPUBLIC TITLE

Transaction

Amount	Amount on Record
Tax	$1,898.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	536 PANORAMIC HWY MILL VALLEY CA 949415038, MILL VALLEY, CA 94941-5038

July 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	MARIN CA
Recording Date	Jul 17, 2020
Property Address	80 ADAMS AVE, MILL VALLEY, CA 94941-1784
Document Number	0000030974
Instrument Date	Jun 25, 2020
Instrument	30974
Transaction Type	Transfer
Record Updated	Aug 4, 2020
Title Company	OTHER

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	536 PANORAMIC HWY MILL VALLEY CA 949415038, MILL VALLEY, CA 94941-5038

Tax Assessment & Valuation

The 2025 property tax bill for 80 Adams Ave was $23,365 with a homeowner's exemption.

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

Year	Tax Bill	Assessed Value
2026		$1,904,503 (+2%) Land $1,104,060 Building $800,443
2025	$23,365.00 Homeowner's exemption	$1,867,174 Land $1,082,420 Building $784,754
2023	$22,134.00 (+10.21%) Homeowner's exemption	$1,794,690 Land $1,040,400 Building $754,290
2022	$20,084.00

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

Flood

FEMA maps place 80 Adams Ave in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2024.

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 minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Claims	1 (2024)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Jan 2024 · other causes

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 80 Adams Ave is moderate, ranking above 57% of the US, with a 0.1% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Moderate above 57% of the US · lower than 66% of California
Wildfire Likelihood	0.1% annual chance
Exposure	Direct burnable vegetation

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 144 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · Fixed Wireless in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25

May also be available: Muir Beach LAN, Verizon.

Cell Coverage

5G (outdoors only) and 4G LTE

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