127 Underhill Rd, Mill Valley, CA 94941 Property Records

Marin County property record for 127 Underhill Rd, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	3 bd · 3 ba · 3,592 sqft · built 1984
Lot Size	0.275 acres (11,966 sqft)
Owner	2 Company Names on Record
Tax Bill	$19,608 (2025)
Deeds & Mortgages	Feb 2022 Mortgage Oct 2019 Line of Credit + 2 more
Flood Zone	Zone X (minimal risk)
APN	`033-210-20`

Property Details

APN / Parcel Number

Primary APN	`033-210-20`

Interior

Bedrooms	3 Beds
Full Baths	3 Baths
Building Area	3,592 sqft Living Area
Basement Area	432 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1984
Effective Year Built	Effective 1984
Architectural Style	Contemporary
Lot Area	11,966 sqft (0.275 acres)
Garage Area	527 sqft
Parking Spaces	2 Parking Spaces
Deck Area	1,404 sqft
Patio Area	1,404 sqft

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	127 UNDERHILL RD
City	MILL VALLEY
State	CA
Zip	94941-1461
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	MAP 18 PG 71 LOT 22
Legal Subdivision	SCOTT VLY MDWS
Legal Lot Number	22
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	1
Census Block	1005
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	127 UNDERHILL RD, MILL VALLEY, CA 94941-1461
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Family Trust

Deeds, Mortgages & Sale History

Date	Document
Feb 16, 2022	Deed of Trust, Mortgage · Conventional Mortgage WELLS FARGO BANK NA
Oct 29, 2019	Deed of Trust, Mortgage · Line of Credit WELLS FARGO BANK NA
Oct 29, 2019	Deed of Trust, Mortgage · Conventional Mortgage WELLS FARGO BANK NA
Jan 14, 2019	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Jan 9, 2019
Transfer Doc	0000001210
Record Updated	Oct 29, 2026

February 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	127 UNDERHILL RD, MILL VALLEY, CA 94941-1461
Transaction Type	Mortgage
Record Updated	Mar 4, 2022
Title Company	AMERICAN TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	127 UNDERHILL RD, MILL VALLEY, CA 94941-1461

Mortgage

Document Number	0000006156
Date	Feb 16, 2022
Instrument	2022-0006156

Lender

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

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Mar 1, 2052

October 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	127 UNDERHILL RD, MILL VALLEY, CA 94941-1461
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	FIRST AMERICAN TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000040543
Date	Oct 29, 2019
Instrument	2019-0040543

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	Nov 21, 2049

October 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	127 UNDERHILL RD, MILL VALLEY, CA 94941-1461
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	FIRST AMERICAN TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000040542
Date	Oct 29, 2019
Instrument	2019-0040542

Lender

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

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Nov 1, 2049

January 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	MARIN CA
Recording Date	Jan 14, 2019
Property Address	127 UNDERHILL RD, MILL VALLEY, CA 94941-1461
Document Number	0000001210
Instrument Date	Jan 9, 2019
Instrument	1210
Transaction Type	Transfer
Record Updated	Jan 25, 2019
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	127 UNDERHILL RD MILL VALLEY CA 949411461, MILL VALLEY, CA 94941-1461

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		$1,446,516 (+2%) Land $524,300 Building $922,216
2025	$19,608.00 (-4.67%) Homeowner's exemption	$1,418,154 (+4.04%) Land $514,020 Building $904,134
2023	$20,568.00 (+12.3%) Homeowner's exemption	$1,363,089 Land $494,061 Building $869,028
2022	$18,315.00

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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