15 Lower Alcatraz Pl, Mill Valley, CA 94941 Property Records

Marin County property record for 15 Lower Alcatraz Pl, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	1 bd · 1 ba · 857 sqft · built 1938
Lot Size	0.069 acres (3,000 sqft)
Owner	2 Company Names on Record
Last Sale	$134,500 (Aug 2009)
Tax Bill	$4,884 (2025)
Deeds & Mortgages	Mar 2022 Transfer Mar 2022 Transfer
Flood Zone	Zone X (minimal risk)
APN	`029-093-07`

Property Details

APN / Parcel Number

Primary APN	`029-093-07`

Interior

Bedrooms	1 Bed
Full Baths	1 Bath
Building Area	857 sqft Living Area
Basement Area	132 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1938
Effective Year Built	Effective 1938
Architectural Style	Contemporary
Lot Area	3,000 sqft (0.069 acres)
Garage Area	437 sqft
Parking Spaces	2 Parking Spaces
Deck Area	942 sqft
Patio Area	942 sqft

Location & Zoning

Street Address	15 LOWER ALCATRAZ PL
City	MILL VALLEY
State	CA
Zip	94941-1802
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	BLK 9 LOT 7
Legal Subdivision	TAMALPAIS LAND & WATER CO 05
Legal Block	9
Legal Lot Number	7
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	5
Census Block	5010
Census Tract	127000

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 Company Names on Record
Mailing Address	21 CREEK RD, FAIRFAX, CA 94930-2023
Owner Type	Company
Vesting	Borrower in Default

Deeds, Mortgages & Sale History

Date	Document
Mar 1, 2022	Intrafamily Transfer, Transfer
Mar 1, 2022	Intrafamily Transfer, Transfer

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 14, 2009 · Amount on Record
Deed Sale	Aug 14, 2009 · Amount on Record
Prior Sale	Dec 10, 2001 · Amount on Record
Deed Document Number	200947107
Prior Transfer Date	Nov 16, 1995
Prior Transfer Doc	0000005756
Record Updated	Oct 29, 2026

March 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	MARIN CA
Recording Date	Mar 1, 2022
Property Address	15 LOWER ALCATRAZ PL, MILL VALLEY, CA 94941-1802
Document Number	0000007822
Instrument Date	Feb 28, 2022
Instrument	2022-0007822
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
Relationship	Revocable Trust
Address	21 CREEK RD, FAIRFAX, CA 94930-2023

March 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	MARIN CA
Recording Date	Mar 1, 2022
Property Address	15 LOWER ALCATRAZ PL, MILL VALLEY, CA 94941-1802
Document Number	0000007821
Instrument Date	Feb 28, 2022
Instrument	2022-0007821
Transaction Type	Transfer
Record Updated	Mar 15, 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
Address	21 CREEK RD, FAIRFAX, CA 94930-2023

Tax Assessment & Valuation

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

Year	Tax Bill	Assessed Value
2026		$60,934 (+2%) Land $20,311 Building $40,623
2025	$4,884.00 (-21.43%)	$59,739 (+4.04%) Land $19,913 Building $39,826
2023	$6,216.00 (+49.35%)	$57,420 Land $19,140 Building $38,280
2022	$4,162.00

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
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 14 policies
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	14 in force
Nearby Flood Claims	11 (1983–2017)
Claims Outside the SFHA	4 of 11
Most Recent Claim	Mar 2017 · river or lake flooding
Claims by Event	Severe Storms, Flooding, Mudslides, And Landslides, Dec 2005 · 3 claims

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	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	0.02% 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 595 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
Verizon Fixed Wireless	300 / 20

May also be available: T-Mobile, Unwired.

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