36 del Casa Dr, Mill Valley, CA 94941 Property Records

Marin County property record for 36 del Casa Dr, Mill Valley, CA 94941

Property Summary

Property Type	Duplex
Details	5 bd · 3 ba · 3,394 sqft · built 1947
Lot Size	0.298 acres (13,000 sqft)
Owner	2 Trust Names on File
Last Sale	$1,361,000 (Oct 2004)
Tax Bill	$31,752 (2025)
Deeds & Mortgages	Nov 2017 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`029-202-16`

Property Details

APN / Parcel Number

Primary APN	`029-202-16`

Interior

Bedrooms	5 Beds
Full Baths	3 Baths
Units	2 Units
Building Area	3,394 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1947
Effective Year Built	Effective 1995
Architectural Style	Contemporary
Lot Area	13,000 sqft (0.298 acres)
Garage Area	483 sqft
Parking Spaces	2 Parking Spaces
Deck Area	66 sqft
Patio Area	1,369 sqft

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	36 DEL CASA DR
City	MILL VALLEY
State	CA
Zip	94941-1322
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Legal Subdivision	MILL VLY TOWN PARK
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	1
Census Block	1018
Census Tract	126100

Owner

36 del Casa Dr, a duplex, is held in a trust since October 2004.

Source: Marin County records, as of August 27, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	2 Trust Names on File
Mailing Address	36 DEL CASA DR, MILL VALLEY, CA 94941-1322
Owner Type	Company
Vesting	Trust, Family Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Oct 28, 2004 · Amount on File
Deed Sale	Oct 28, 2004 · Amount on File
Prior Sale	Jul 18, 1997 · Amount on File
Deed Document Number	200492015
Prior Transfer Date	Sep 17, 1997
Prior Transfer Doc	0000052180
Record Updated	Oct 29, 2026

November 2017: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	MARIN CA
Recording Date	Nov 28, 2017
Property Address	36 DEL CASA DR, MILL VALLEY, CA 94941-1322
Document Number	0000047137
Instrument Date	Nov 17, 2017
Instrument	2017-0047137
Transaction Type	Transfer
Record Updated	Aug 13, 2021
Title Company	OLD REPUBLIC TITLE CO

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name
Address	00000

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Family Trust
Address	111 WESTERN DR, RICHMOND, CA 94801-4013

Mortgage

Document Number	0000047139
Date	Nov 28, 2017
Instrument	2017-0047139

Lender

Name	FIRST REPUBLIC BANK
Type	Bank

Agreement

Type	ARM
Amount	Amount on Record
Term	361 Months
Due	Dec 1, 2047

Interest

Rate Type	Adjustable Rate
Rate	3.5%
Type Change Date	Dec 1, 2027
Change Frequency	Annually
Min Rate At Change	2.5%
Index	1-Year LIBOR
Max Rate	9.95%

Tax Assessment & Valuation

The 2025 property tax bill for 36 del Casa Dr was $31,752.

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		$2,490,286 (+2%) Land $1,454,347 Building $1,035,939
2025	$31,752.00	$2,441,467 Land $1,425,836 Building $1,015,631
2023	$30,407.00 (+1.95%)	$2,346,682 Land $1,370,482 Building $976,200
2022	$29,826.00

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

Flood

FEMA maps place 36 del Casa Dr in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.

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 AO, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 10 policies
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 Event	Severe Winter Storms And Flooding, Feb 1998 · 2 claims Severe Storms, Flood, Mudslides & High Tide, Jan 1982 · 4 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

Wildfire risk around 36 del Casa Dr is low, with a 0.02% annual chance of 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	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 301 locations within half a mile, as of December 31, 2025

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

May also be available: T-Mobile, Verizon.

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