78 Mountain Ln, Mill Valley, CA 94941 Property Records

Marin County property record for 78 Mountain Ln, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,352 sqft · built 1925
Lot Size	0.188 acres (8,175 sqft)
Owner	2 Individual Names on Record
Last Sale	$1,136,000 (Apr 2025)
Tax Bill	$8,091 (2025)
Deeds & Mortgages	Dec 2021 Transfer Dec 2021 Transfer
Flood Zone	Zone X (minimal risk)
APN	`045-093-05`

Property Details

APN / Parcel Number

Primary APN	`045-093-05`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	5 Rooms
Stories	2 Stories
Building Area	1,352 sqft Living Area

Exterior

Year Built	Built 1925
Effective Year Built	Effective 1940
Architectural Style	Contemporary
Exterior Material	Wood Siding
Roof Material	Composition Shingle
Lot Area	8,175 sqft (0.188 acres)
Porch	Porch
Deck Area	530 sqft
Patio Area	530 sqft

Utilities, Heating & Cooling

Heating System	Central
Sewer	Septic
Water Source	Commercial

Location & Zoning

Street Address	78 MOUNTAIN LN
City	MILL VALLEY
State	CA
Zip	94941-5008
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1B2
Legal Description	LOT 131
Legal Subdivision	MUIR WOOD PARK 03
Legal Tract	3
Legal Lot Number	131
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

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

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Individual Names on Record
Mailing Address	1532 UNION ST, SAN FRANCISCO, CA 94123-4505
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Date	Document
Dec 28, 2021	Affidavit of Death of Joint Tenant, Transfer
Dec 28, 2021	Intrafamily Transfer, Transfer

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Apr 10, 2025 · Amount on Record
Deed Sale	Apr 10, 2025 · Amount on Record
Deed Document Number	20259902
Prior Transfer Date	Nov 19, 2021
Prior Transfer Doc	0000075004
Record Updated	Sep 20, 2026

December 2021: Affidavit of Death of Joint Tenant, Transfer

Document Type	Affidavit of Death of Joint Tenant
Jurisdiction	MARIN CA
Recording Date	Dec 28, 2021
Property Address	78 MOUNTAIN LN, MILL VALLEY, CA 94941-5008
Document Number	0000075004
Map Reference	VOL 4 PG 14
Instrument Date	Nov 19, 2021
Instrument	2021-0075004
Transaction Type	Transfer
Record Updated	Jan 11, 2022

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name

December 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	MARIN CA
Recording Date	Dec 28, 2021
Property Address	78 MOUNTAIN LN, MILL VALLEY, CA 94941-5008
Document Number	0000075005
Map Reference	VOL 4 PG 14
Instrument Date	Nov 19, 2021
Instrument	2021-0075005
Transaction Type	Transfer
Record Updated	Jun 7, 2023

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	78 MOUNTAIN LN, MILL VALLEY, CA 94941-5008

Tax Assessment & Valuation

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		$1,158,720 (+109.73%) Land $663,000 Building $495,720
2025	$8,091.00 (+29.21%) Homeowner's exemption	$552,488 (+4.04%) Land $236,345 Building $316,143
2023	$6,262.00 (-19.67%) Homeowner's exemption	$531,037 Land $227,169 Building $303,868
2022	$7,795.00

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

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

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

Wildfire Risk	Moderate above 55% of the US · lower than 67% of California
Wildfire Likelihood	0.1% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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.

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