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101 Underhill Rd, Mill Valley, CA 94941 Property Records

Marin County property record for 101 Underhill Rd, Mill Valley, CA 94941 · Last verified July 2026

Property Summary

Property TypeSingle Family Home
Details4 bd · 4.5 ba · 4,969 sqft · built 1986
Lot Size0.672 acres (29,251 sqft)
Owner2 Company Names on File
Last Sale$4,000,000 (Jan 2014)
Tax Bill$60,582 (2025)
Deeds & MortgagesMay 2021 Mortgage
May 2019 Mortgage
Flood ZoneZone X (minimal risk)
APN033-210-13

Property Details

APN / Parcel Number

Primary APN033-210-13

Interior

Bedrooms4 Beds
Full Baths4.5 Baths
Half Baths1 Half Bath
Building Area4,969 sqft Living Area
Basement Area125 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1986
Effective Year BuiltEffective 2002
Architectural StyleContemporary
Lot Area29,251 sqft (0.672 acres)
Garage Area665 sqft
Parking Spaces2 Parking Spaces
Deck Area723 sqft
Patio Area723 sqft

Utilities, Heating & Cooling

Heating SystemCentral

Location & Zoning

Street Address101 UNDERHILL RD
CityMILL VALLEY
StateCA
Zip94941-1461
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionMAP 18 PG 71 LOT 37
Legal SubdivisionSCOTT VLY MDWS
Legal Lot Number37
JurisdictionMARIN CA
Township / Civil DivisionSOUTHEAST MARIN
Census Block Group1
Census Block1005
Census Tract126200

Owner

Source: Marin County records · APN 033-210-13

Assessment roll updated July 13, 2026 · Last verified July 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record2 Company Names on File
Mailing Address101 UNDERHILL RD, MILL VALLEY, CA 94941-1461
OccupancyOwner Occupied
Owner TypeCompany
VestingBorrower in Default

Deeds, Mortgages & Sale History

DateDocument
May 12, 2021Deed of Trust, Mortgage · Conventional Mortgage
JPMORGAN CHASE BANK NA
May 17, 2019Deed of Trust, Mortgage · ARM
FIRST REPUBLIC BANK

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleJan 24, 2014 · Amount on Record
Deed SaleJan 24, 2014 · Amount on Record
Prior SaleNov 10, 2005 · Amount on Record
Deed Document Number20142932
Prior Transfer DateNov 30, 2007
Prior Transfer Doc0000069906
Record UpdatedSep 20, 2026

May 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionMARIN CA
Property Address101 UNDERHILL RD, MILL VALLEY, CA 94941-1461
Transaction TypeMortgage
Record UpdatedMay 31, 2021
Title CompanyREPUBLIC NATIONAL TITLE INSURANCE COMPANY, OLD REPUBLIC NATL TTL INS CO

Transferred To (Grantee/Buyer)

NameVerified Name
Address101 UNDERHILL RD, MILL VALLEY, CA 94941-1461

Mortgage

Document Number0000031994
DateMay 12, 2021
Instrument2021-0031994
Lender
NameJPMORGAN CHASE BANK NA
TypeBank
AddressDOWNERS GROVE, IL 60515
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueJun 01, 2051

May 2019: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionMARIN CA
Property Address101 UNDERHILL RD, MILL VALLEY, CA 94941-1461
Transaction TypeMortgage
Record UpdatedFeb 05, 2021
Title CompanyOLD REPUBLIC TITLE CO

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0000016758
DateMay 17, 2019
Instrument2019-0016758
Lender
NameFIRST REPUBLIC BANK
TypeBank
AddressSAN FRANCISCO, CA 94111
Agreement
TypeARM
AmountAmount Recorded
Term361 Months
DueJun 01, 2049
Interest
Rate TypeAdjustable Rate
Rate2.7%
AdjustableAdjustable Rate Rider
Type Change DateAug 01, 2024
Change FrequencyMonthly
Index1-Year CMT
Max Rate10.9%

Tax Assessment & Valuation

Source: Marin County records · Assessment roll updated July 13, 2026 · Last verified July 2026

Property Jurisdictions

TypeName
StateCalifornia
CountyMarin County
MunicipalityMill Valley City
Elementary School DistrictMill Valley Elementary School District (KG - 08)
Secondary School DistrictTamalpais Union High School District (09 - 12)

Tax Bill & Assessment History

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

YearTax BillAssessed Value
2026$4,995,028 (+2%) Land $2,250,576 Building $2,744,452
2025$60,582.00 (+6.39%)$4,897,110 (+4.04%) Land $2,206,458 Building $2,690,652
2023$56,943.00 (+1.72%)$4,706,988 Land $2,120,796 Building $2,586,192
2022$55,979.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Marin County (06041C), updated October 18, 2023 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060411262001, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
Special Flood Hazard AreaNo
Flood HazardMinimal
500-Year FloodplainNo
Flood Insurance CostPremium on Record
median of 86 individual NFIP policies nearby
Community Rating SystemClass 6 (20% premium discount)
Nearby Flood Policies108 units insured
22 under condo master policies
Nearby Flood Claims9 (1982–2019)
Claims Outside the SFHA1 of 9
Most Recent ClaimFeb 2019, other causes, Severe Winter Storms, Flooding, Landslides, And Mudslides
Claims By Storm
  • Severe Storms, Flood, Mudslides & High Tide, Jan 1982 · 4 claims

Wildfire

Wildfire RiskLow
above 20% of the US · above 11% of California
Wildfire LikelihoodAbout 1 in 9,091 per year
ExposureIndirect
within ember reach

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.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 192 locations within about half a mile of this property

ProviderTechnologyDownload / Upload (Mbps)
XfinityCable2,000 / 250
UnwiredFixed Wireless300 / 25
StarlinkSatellite (low-earth orbit)280 / 30

May also be available at this address: T-Mobile USA, AT&T. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE (outdoors only)

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