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

Marin County property record for 90 del Casa Dr, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 2,475 sqft · built 1951
Lot Size	0.161 acres (7,000 sqft)
Owner	2 Individual Names on File
Last Sale	$2,475,000 (Mar 2021)
Tax Bill	$34,806 (2025)
Deeds & Mortgages	Mar 2021 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`029-172-07`

Property Details

APN / Parcel Number

Primary APN	`029-172-07`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Building Area	2,475 sqft Living Area
Basement Area	30 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1951
Effective Year Built	Effective 1995
Architectural Style	Contemporary
Lot Area	7,000 sqft (0.161 acres)
Garage Area	385 sqft
Parking Spaces	1 Parking Space
Deck Area	803 sqft

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	90 DEL CASA DR
City	MILL VALLEY
State	CA
Zip	94941-1305
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	MAP E3 606
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	1
Census Block	1005
Census Tract	126100

Owner

90 del Casa Dr is owned and occupied by two individuals who bought it in March 2021.

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

Owner of Record	2 Individual Names on File
Mailing Address	90 DEL CASA DR, MILL VALLEY, CA 94941-1305
Occupancy	Owner Occupied
Owner Type	Individual

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

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Mar 15, 2021 · Amount on File
Deed Sale	Mar 15, 2021 · Amount on File
Prior Sale	Jun 28, 2002 · Amount on File
Deed Document Number	202117587
Prior Transfer Date	Apr 24, 1997
Prior Transfer Doc	0000022151
Record Updated	Oct 29, 2026

March 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MARIN CA
Recording Date	Mar 15, 2021
Property Address	90 DEL CASA DR, MILL VALLEY, CA 94941-1305
Document Number	0000017587
Instrument Date	Feb 25, 2021
Instrument	2021-0017587
Transaction Type	Transfer
Record Updated	Aug 13, 2021
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$2,722.50
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	90 DEL CASA DR, MILL VALLEY, CA 94941-1305

Mortgage

Document Number	0000017588
Date	Mar 15, 2021
Instrument	2021-0017588

Lender

Name	FIRST REPUBLIC BANK
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Apr 1, 2051

Interest

Rate Type	Adjustable Rate
Rate	2.55%
Type Change Date	Apr 1, 2028
Change Frequency	Annually
Min Rate At Change	2.95%
Max Rate At Change	1.09%
Index	1-Year CMT
Max Rate	1.09%

Tax Assessment & Valuation

The 2025 property tax bill for 90 del Casa Dr was $34,806.

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		$2,731,443 (+2%) Land $1,628,488 Building $1,102,955
2025	$34,806.00	$2,677,906 Land $1,596,569 Building $1,081,337
2023	$32,880.00 (+3.46%)	$2,573,949 Land $1,534,590 Building $1,039,359
2022	$31,779.00

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

Flood

FEMA maps place 90 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 90 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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