36 Underhill Rd, Mill Valley, CA 94941 Property Records

Marin County property record for 36 Underhill Rd, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 2,778 sqft · built 1965
Lot Size	0.197 acres (8,584 sqft)
Owner	2 Company Names on Record
Tax Bill	$8,064 (2025)
Deeds & Mortgages	Mar 2024 Transfer Sep 2018 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`033-181-01`

Property Details

APN / Parcel Number

Primary APN	`033-181-01`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Building Area	2,778 sqft Living Area

Exterior

Year Built	Built 1965
Effective Year Built	Effective 1975
Architectural Style	Contemporary
Lot Area	8,584 sqft (0.197 acres)
Garage Area	672 sqft
Parking Spaces	2 Parking Spaces
Pool Area	450 sqft
Deck Area	761 sqft

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	36 UNDERHILL RD
City	MILL VALLEY
State	CA
Zip	94941-1491
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 92
Legal Subdivision	SCOTT VLY #3
Legal Tract	3
Legal Lot Number	92
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	36 UNDERHILL RD, MILL VALLEY, CA 94941-1491
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Mar 22, 2024	Correction Deed
Sep 20, 2018	Quit Claim Deed, Transfer ATTORNEY ONLY
May 24, 2017	Grant Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Aug 25, 1997
Transfer Doc	0000049016
Record Updated	Oct 29, 2026

March 2024: Correction Deed

Document Type	Correction Deed
Jurisdiction	MARIN CA
Recording Date	Mar 22, 2024
Property Address	36 UNDERHILL RD, MILL VALLEY, CA 94941-1491
Document Number	0000007725
Map Reference	VOL 12 PG 78
Instrument Date	Mar 19, 2024
Instrument	2024-0007725
Record Updated	Apr 10, 2024

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	157 THROCKMORTON AVE, MILL VALLEY, CA 94941-1969

September 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	MARIN CA
Recording Date	Sep 20, 2018
Property Address	36 UNDERHILL RD, MILL VALLEY, CA 94941-1491
Document Number	0000033310
Instrument Date	Aug 31, 2018
Instrument	33310
Transaction Type	Transfer
Record Updated	Oct 2, 2018
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer Partial Interest

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	157 THROCKMORTON AVE MILL VALLEY CA 949411969, MILL VALLEY, CA 94941-1969

May 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MARIN CA
Recording Date	May 24, 2017
Property Address	36 UNDERHILL RD, MILL VALLEY, CA 94941-1491
Document Number	0000020743
Instrument Date	Apr 8, 2016
Instrument	20743
Transaction Type	Transfer
Record Updated	May 31, 2017
Title Company	ATTORNEY ONLY

Transaction

Amount	Amount Recorded
Tax	$330.00
Additional	Intrafamily Transfer Partial Interest

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	36 UNDERHILL RD MILL VALLEY CA 949411491, MILL VALLEY, CA 94941-1491

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		$355,269 (+2%) Land $62,517 Building $292,752
2025	$8,064.00 (+10.83%) Homeowner's exemption	$348,303 (+33.32%) Land $61,291 Building $287,012
2023	$7,276.00 (+4.9%) Homeowner's exemption	$261,250 Land $58,912 Building $202,338
2022	$6,936.00

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 65% of the US · lower than 79% 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 (outdoors only) and 4G LTE

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