19 Underhill Rd, Mill Valley, CA 94941 Property Records

Marin County property record for 19 Underhill Rd, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,687 sqft · built 1963
Lot Size	0.242 acres (10,560 sqft)
Owner	2 Company Names on Record
Last Sale	$2,775,000 (May 2021)
Tax Bill	$38,332 (2025)
Deeds & Mortgages	Dec 2021 Transfer May 2021 Sale & Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`033-152-04`

Property Details

APN / Parcel Number

Primary APN	`033-152-04`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	3 Rooms
Stories	2 Stories
Building Area	1,687 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1963
Effective Year Built	Effective 1985
Architectural Style	Contemporary
Exterior Material	Wood Siding
Construction Type	Frame
Roof Material	Tar & Gravel
Lot Area	10,560 sqft (0.242 acres)
Garage Area	489 sqft
Parking Spaces	2 Parking Spaces
Deck Area	1,148 sqft
Patio Area	1,148 sqft

Utilities, Heating & Cooling

Heating System	Central
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	19 UNDERHILL RD
City	MILL VALLEY
State	CA
Zip	94941-1423
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	MAP 10 PG 69 LOT 18
Legal Subdivision	SCOTT VLY #1
Legal Tract	1
Legal Lot Number	18
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	1
Census Block	1009
Census Tract	126200

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	19 UNDERHILL RD, MILL VALLEY, CA 94941-1423
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Family Trust

Deeds, Mortgages & Sale History

Date	Document
Dec 10, 2021	Intrafamily Transfer, Transfer
May 27, 2021	Grant Deed, Transfer · Conventional Mortgage WELLS FARGO BANK NA
Sep 29, 2017	Deed of Trust, Mortgage · Conventional Mortgage US BANK NA
Jan 23, 2020	Deed of Trust, Mortgage · Conventional Mortgage US BANK NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 27, 2021 · Amount on Record
Deed Sale	May 27, 2021 · Amount on Record
Prior Sale	Nov 5, 2014 · Amount on Record
Deed Document Number	202135168
Last Transfer Date	Dec 9, 2021
Transfer Doc	0000072391
Record Updated	Sep 20, 2026

December 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	MARIN CA
Recording Date	Dec 10, 2021
Property Address	19 UNDERHILL RD, MILL VALLEY, CA 94941-1423
Document Number	0000072391
Map Reference	VOL 10 PG 69
Instrument Date	Dec 9, 2021
Instrument	2021-0072391
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	Family Trust
Address	19 UNDERHILL RD, MILL VALLEY, CA 94941-1423

May 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MARIN CA
Recording Date	May 27, 2021
Property Address	19 UNDERHILL RD, MILL VALLEY, CA 94941-1423
Document Number	0000035168
Map Reference	VOL 10 PG 69
Instrument Date	May 24, 2021
Instrument	2021-0035168
Transaction Type	Transfer
Record Updated	Jun 9, 2021
Title Company	FIRST AMERICAN TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$3,052.50
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	19 UNDERHILL RD, MILL VALLEY, CA 94941-1423

Mortgage

Document Number	0000035169
Date	May 27, 2021
Instrument	2021-0035169

Lender

Name	WELLS FARGO BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jun 1, 2051

September 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	19 UNDERHILL RD, MILL VALLEY, CA 94941-1423
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000039015
Date	Sep 29, 2017
Instrument	2017-0039015

Lender

Name	US BANK NA
Type	Bank
Address	OWENSBORO, KY 42301

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Oct 1, 2047

January 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	19 UNDERHILL RD, MILL VALLEY, CA 94941-1423
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	SERVICELINK

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000002866
Date	Jan 23, 2020
Instrument	2020-0002866

Lender

Name	US BANK NA
Type	Bank
Address	OWENSBORO, KY 42301

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Feb 1, 2050

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		$3,063,766 (+2%) Land $1,214,466 Building $1,849,300
2025	$38,332.00 (+3.55%) Homeowner's exemption	$3,003,715 (+4.04%) Land $1,190,662 Building $1,813,053
2023	$37,017.00 (+5.72%) Homeowner's exemption	$2,887,110 Land $1,144,440 Building $1,742,670
2022	$35,014.00

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

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
Flood Insurance Cost	Premium on Record median of 86 individual policies
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	108 units insured incl. 22 condo units
Nearby Flood Claims	9 (1982–2019)
Claims Outside the SFHA	1 of 9
Most Recent Claim	Feb 2019 · Severe Winter Storms, Flooding, Landslides, And Mudslides
Claims by Event	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

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

Wildfire Risk	Low lower than 67% of the US · lower than 81% of California
Wildfire Likelihood	0.03% 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 105 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25

May also be available: AT&T.

Cell Coverage

5G and 4G LTE (outdoors only)

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