22 Underhill Rd, Mill Valley, CA 94941 Property Records

Marin County property record for 22 Underhill Rd, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	5 bd · 2.5 ba · 2,818 sqft · built 1970
Lot Size	0.327 acres (14,256 sqft)
Owner	Company Name on Record
Last Sale	$3,700,000 (Sep 2022)
Tax Bill	$50,637 (2025)
Deeds & Mortgages	Feb 2024 Transfer Oct 2022 Transfer + 3 more
Flood Zone	Zone X (minimal risk)
APN	`033-153-15`

Property Details

APN / Parcel Number

Primary APN	`033-153-15`

Interior

Bedrooms	5 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Building Area	2,818 sqft Living Area

Exterior

Year Built	Built 1970
Effective Year Built	Effective 1991
Lot Area	14,256 sqft (0.327 acres)
Garage Area	620 sqft
Parking Spaces	2 Parking Spaces
Deck Area	570 sqft
Patio Area	570 sqft

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	22 UNDERHILL RD
City	MILL VALLEY
State	CA
Zip	94941-1424
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Subdivision	SCOTT VLY UN 1
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	Company Name on Record
Mailing Address	22 UNDERHILL RD, MILL VALLEY, CA 94941-1424
Owner Type	Company
Vesting	Limited Liability Company

Deeds, Mortgages & Sale History

Date	Document
Feb 7, 2024	Intrafamily Transfer, Transfer
Oct 5, 2022	Intrafamily Transfer, Transfer FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY
Sep 22, 2022	Grant Deed, Transfer · Conventional Mortgage FIRST REPUBLIC BANK
Jul 15, 2021	Grant Deed, Transfer · Conventional Mortgage GUARANTEED RATE INC
Jan 26, 2018	Deed of Trust, Mortgage · Line of Credit BANK OF AMERICA

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Sep 22, 2022 · Amount on Record
Deed Sale	Sep 22, 2022 · Amount on Record
Prior Sale	Jul 15, 2021 · Amount on Record
Deed Document Number	202233083
Last Transfer Date	Jan 26, 2024
Transfer Doc	0000003661
Record Updated	Sep 20, 2026

February 2024: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	MARIN CA
Recording Date	Feb 7, 2024
Property Address	22 UNDERHILL RD, MILL VALLEY, CA 94941-1424
Document Number	0000003661
Instrument Date	Jan 26, 2024
Instrument	2024-0003661
Transaction Type	Transfer
Record Updated	Feb 22, 2024

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
Address	22 UNDERHILL RD, MILL VALLEY, CA 94941-1424

October 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	MARIN CA
Recording Date	Oct 5, 2022
Property Address	22 UNDERHILL RD, MILL VALLEY, CA 94941-1424
Document Number	0000034136
Instrument Date	Oct 5, 2022
Instrument	2022-0034136
Transaction Type	Transfer
Record Updated	Oct 19, 2022
Title Company	FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

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	Community Property with Right of Survivorship
Address	22 UNDERHILL RD, MILL VALLEY, CA 94941-1424

September 2022: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MARIN CA
Recording Date	Sep 22, 2022
Property Address	22 UNDERHILL RD, MILL VALLEY, CA 94941-1424
Document Number	0000033083
Instrument Date	Sep 9, 2022
Instrument	2022-0033083
Transaction Type	Transfer
Record Updated	Oct 11, 2022
Title Company	FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$4,070.00
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	22 UNDERHILL RD, MILL VALLEY, CA 94941-1424

Mortgage

Document Number	0000033084
Date	Sep 22, 2022
Instrument	2022-0033084

Lender

Name	FIRST REPUBLIC BANK
Type	Bank

Agreement

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

Interest

Rate Type	Adjustable Rate
Rate	3.3%
Type Change Date	Oct 1, 2029
Change Frequency	Monthly
Min Rate At Change	2.95%
Max Rate At Change	10.9%
Index	1-Year CMT
Max Rate	10.9%

July 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MARIN CA
Recording Date	Jul 15, 2021
Property Address	22 UNDERHILL RD, MILL VALLEY, CA 94941-1424
Document Number	0000046111
Instrument Date	Jul 9, 2021
Instrument	2021-0046111
Transaction Type	Transfer
Record Updated	Jul 21, 2022
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$3,300.00
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	22 UNDERHILL RD, MILL VALLEY, CA 94941-1424

Mortgage

Document Number	0000046112
Date	Jul 15, 2021
Instrument	2021-0046112

Lender

Name	GUARANTEED RATE INC
Type	Mortgage Company

Agreement

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

January 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	22 UNDERHILL RD, MILL VALLEY, CA 94941-1424
Document Number	0000003796
Instrument Date	Jan 26, 2018
Transaction Type	Mortgage
Record Updated	Aug 30, 2018
Title Company	AMERICAN TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	22 UNDERHILL RD MILL VALLEY CA 949411424, MILL VALLEY, CA 94941-1424

Mortgage

Document Number	0000003796
Date	Feb 7, 2018
Instrument	3796

Lender

Name	BANK OF AMERICA
Type	Bank
Address	TAMPA, FL 33634

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate

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		$4,176,440 (+5.35%) Land $2,361,170 Building $1,815,270
2025	$50,637.00 (+11.33%)	$3,964,480 (+7.15%) Land $2,314,890 Building $1,649,590
2023	$45,483.00 (+20.26%)	$3,700,000 Land $2,225,000 Building $1,475,000
2022	$37,822.00

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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