104 Underhill Rd, Mill Valley, CA 94941 Property Records

Marin County property record for 104 Underhill Rd, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 2,634 sqft · built 1986
Lot Size	0.23 acres (9,995 sqft)
Owner	2 Company Names on Record
Last Sale	$2,435,000 (Aug 2020)
Tax Bill	$36,191 (2025)
Deeds & Mortgages	Dec 2019 Line of Credit Nov 2020 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`033-220-05`

Property Details

APN / Parcel Number

Primary APN	`033-220-05`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	7 Rooms
Building Area	2,634 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1986
Effective Year Built	Effective 2005
Architectural Style	Contemporary
Lot Area	9,995 sqft (0.23 acres)
Garage Area	436 sqft
Parking Spaces	2 Parking Spaces
Deck Area	489 sqft
Patio Area	489 sqft

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	104 UNDERHILL RD
City	MILL VALLEY
State	CA
Zip	94941-1460
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	L5 /B18P71 M SCOTT VALLEY MEADOW
Legal Subdivision	SCOTT VLY MDWS
Legal Lot Number	5
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	1
Census Block	1000
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	104 UNDERHILL RD, MILL VALLEY, CA 94941-1460
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Borrower in Default

Deeds, Mortgages & Sale History

Date	Document
Dec 11, 2019	Deed of Trust, Mortgage · Line of Credit WELLS FARGO BANK NA
Nov 25, 2020	Deed of Trust, Mortgage · Conventional Mortgage SHARI L SILVERS
Aug 7, 2020	Grant Deed, Transfer · Conventional Mortgage FIRST REPUBLIC BANK

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 7, 2020 · Amount on Record
Deed Sale	Aug 7, 2020 · Amount on Record
Prior Sale	Mar 31, 2015 · Amount on Record
Deed Document Number	202035353
Prior Transfer Date	Nov 18, 1993
Prior Transfer Doc	0000101464
Record Updated	Oct 29, 2026

December 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	104 UNDERHILL RD, MILL VALLEY, CA 94941-1460
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	ORANGE COAST TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000046912
Date	Dec 11, 2019
Instrument	2019-0046912

Lender

Name	WELLS FARGO BANK NA
Type	Bank
Address	SIOUX FALLS, SD 57104

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	361 Months
Due	Jan 4, 2050

November 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	104 UNDERHILL RD, MILL VALLEY, CA 94941-1460
Document Number	0000059908
Instrument Date	Nov 25, 2020
Transaction Type	Mortgage
Record Updated	Dec 10, 2020
Title Company	NOT AVAILABLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	104 UNDERHILL RD MILL VALLEY CA 949411460, MILL VALLEY, CA 94941-1460

Mortgage

Document Number	0000059908
Date	Nov 25, 2020
Instrument	59908

Lender

Name	SHARI L SILVERS
Address	4872 HIDDEN BRANCHES DR, DUNWOODY, GA 30338-3957

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded

August 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MARIN CA
Recording Date	Aug 7, 2020
Property Address	104 UNDERHILL RD, MILL VALLEY, CA 94941-1460
Document Number	0000035353
Map Reference	VOL 18 PG 71
Instrument Date	Jul 30, 2020
Instrument	2020-0035353
Transaction Type	Transfer
Record Updated	Aug 13, 2021
Title Company	OLD REPUBLIC TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$2,678.50
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Family Revocable Trust
Address	104 UNDERHILL RD, MILL VALLEY, CA 94941-1460

Mortgage

Document Number	0000035354
Date	Aug 7, 2020
Instrument	2020-0035354

Lender

Name	FIRST REPUBLIC BANK
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Sep 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		$2,730,834 (+2%) Land $1,600,887 Building $1,129,947
2025	$36,191.00 (+10.29%) Homeowner's exemption	$2,677,308 (+4.04%) Land $1,569,509 Building $1,107,799
2023	$32,813.00 (+3.47%) Homeowner's exemption	$2,573,374 Land $1,508,580 Building $1,064,794
2022	$31,712.00

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 80% of the US · lower than 88% of California
Wildfire Likelihood	0.03% annual chance
Exposure	None beyond ember reach

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 192 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, T-Mobile.

Cell Coverage

5G (outdoors only) and 4G LTE

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