133 Locust Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 133 Locust Ave, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	5 bd · 4.5 ba · 3,323 sqft · built 1949
Lot Size	0.148 acres (6,435 sqft)
Owner	2 Company Names on File
Last Sale	$1,600,000 (Jul 2009)
Tax Bill	$29,664 (2025)
Deeds & Mortgages	Nov 2020 Transfer
Flood Zone	Zone X (minimal risk)
APN	`028-232-11`

Property Details

APN / Parcel Number

Primary APN	`028-232-11`

Interior

Bedrooms	5 Beds
Full Baths	4.5 Baths
Half Baths	1 Half Bath
Building Area	3,323 sqft Living Area

Exterior

Year Built	Built 1949
Effective Year Built	Effective 1995
Architectural Style	Contemporary
Lot Area	6,435 sqft (0.148 acres)
Garage Area	293 sqft
Parking Spaces	1 Parking Space
Deck Area	633 sqft
Patio Area	633 sqft

Utilities, Heating & Cooling

Heating System	Floor/Wall Furnace

Location & Zoning

Street Address	133 LOCUST AVE
City	MILL VALLEY
State	CA
Zip	94941-2127
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Subdivision	TAMALPAIS PARK MILL VLY
Legal Lot Number	200
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	3
Census Block	3001
Census Tract	126100

Owner

Source: Marin County records · APN 028-232-11

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 Record	2 Company Names on File
Mailing Address	133 LOCUST AVE, MILL VALLEY, CA 94941-2127
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Family Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Jul 27, 2009 · Amount on Record
Deed Sale	Jul 27, 2009 · Amount on Record
Prior Sale	May 01, 2003 · Amount on Record
Deed Document Number	200942622
Last Transfer Date	Jan 21, 2015
Transfer Doc	0000003240
Record Updated	Sep 20, 2026

November 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	MARIN CA
Recording Date	Nov 16, 2020
Property Address	133 LOCUST AVE, MILL VALLEY, CA 94941-2127
Document Number	0000057247
Instrument Date	Oct 22, 2020
Instrument	57247
Transaction Type	Transfer
Record Updated	Nov 26, 2020
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	133 LOCUST AVE MILL VALLEY CA 949412127, MILL VALLEY, CA 94941-2127
Investor	Possibly a Property Investor

Tax Assessment & Valuation

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

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

Year	Tax Bill	Assessed Value
2026		$2,302,946 (+2%) Land $1,316,540 Building $986,406
2025	$29,664.00 (+3.8%) Homeowner's exemption	$2,257,798 (+4.04%) Land $1,290,730 Building $967,068
2023	$28,577.00 (+3.21%) Homeowner's exemption	$2,170,143 Land $1,240,620 Building $929,523
2022	$27,688.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of October 18, 2023 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 61 individual policies
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	69 units insured incl. 8 condo units
Nearby Flood Claims	43 (1979–2024)
Claims Outside the SFHA	6 of 43
Most Recent Claim	Dec 2024 · river or lake flooding
Claims by Event	Severe Storms, Flooding, Mudslides, And Landslides, Jan 2006 · 13 claims Severe Storms & Flooding, Feb 1986 · 3 claims Severe Storms, Flood, Mudslides & High Tide, Jan 1982 · 9 claims

Wildfire

Wildfire Risk	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	0.01% annual chance
Exposure	Indirect 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 as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
AT&T Fiber · Fixed Wireless in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
T-Mobile USA Fixed Wireless	100 / 20

Based on FCC filings for 762 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	MARIN MUNICIPAL WATER DISTRICT serves 188,116 people
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 as reported to EPA, 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. The full violation and enforcement history is in the system's EPA record.