600 Throckmorton Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 600 Throckmorton Ave, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 3,649 sqft · built 1989
Lot Size	0.766 acres (33,362 sqft)
Owner	2 Company Names on Record
Last Sale	$2,240,000 (Jul 2012)
Tax Bill	$35,047 (2025)
Deeds & Mortgages	Jun 2022 Mortgage Mar 2017 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`027-172-25`

Property Details

APN / Parcel Number

Primary APN	`027-172-25`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	3,649 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1989
Effective Year Built	Effective 1992
Architectural Style	Contemporary
Exterior Material	Stucco
Roof Material	Composition Shingle
Lot Area	33,362 sqft (0.766 acres)
Garage Area	506 sqft
Parking Spaces	2 Parking Spaces
Pool Type	Spa / Hot Tub (No Pool)
Deck Area	972 sqft
Patio Area	972 sqft

Utilities, Heating & Cooling

Heating System	Central
Heating Fuel	Gas
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	600 THROCKMORTON AVE
City	MILL VALLEY
State	CA
Zip	94941-1735
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RS10
Legal Description	LOT 283
Legal Subdivision	SAUSALITO OR RICHARDSON RHO
Legal Lot Number	283
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	4
Census Block	4002
Census Tract	127000

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	600 THROCKMORTON AVE, MILL VALLEY, CA 94941-1735
Owner Type	Company
Vesting	Borrower in Default

Deeds, Mortgages & Sale History

Date	Document
Jun 15, 2022	Deed of Trust, Mortgage · Conventional Mortgage FIRST REPUBLIC BANK
Mar 10, 2017	Deed of Trust, Mortgage · ARM FIRST REPUBLIC BANK

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 10, 2012 · Amount on Record
Deed Sale	Jul 10, 2012 · Amount on Record
Prior Sale	Apr 25, 1995 · Amount on Record
Deed Document Number	201241667
Last Transfer Date	Nov 19, 2012
Transfer Doc	0000073313
Record Updated	Oct 29, 2026

June 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	600 THROCKMORTON AVE, MILL VALLEY, CA 94941-1735
Transaction Type	Mortgage
Record Updated	Jun 29, 2022
Title Company	OLD REPUBLIC TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	600 THROCKMORTON AVE, MILL VALLEY, CA 94941-1735

Mortgage

Document Number	0000023348
Date	Jun 15, 2022
Instrument	2022-0023348

Lender

Name	FIRST REPUBLIC BANK
Type	Bank
Address	SAN FRANCISCO, CA 94111

Agreement

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

Interest

Rate Type	Adjustable Rate
Rate	3.35%
Type Change Date	Jul 1, 2029
Change Frequency	Monthly
Min Rate At Change	2.95%
Max Rate At Change	10.9%
Index	Other
Max Rate	10.9%

March 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	600 THROCKMORTON AVE, MILL VALLEY, CA 94941-1735
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	FIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000010497
Date	Mar 10, 2017
Instrument	2017-0010497

Lender

Name	FIRST REPUBLIC BANK
Type	Bank
Address	SAN FRANCISCO, CA 94111

Agreement

Type	ARM
Amount	Amount Recorded
Term	361 Months
Due	Apr 1, 2047

Interest

Rate Type	Adjustable Rate
Rate	2.95%
Type Change Date	Jun 1, 2022
Change Frequency	Monthly
Min Rate At Change	2.5%
Index	1-Year LIBOR
Max Rate	9.95%

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		$2,810,928 (+2%) Land $1,554,928 Building $1,256,000
2025	$35,047.00 (+3.34%)	$2,755,828 (+4.04%) Land $1,524,448 Building $1,231,380
2023	$33,914.00 (+5.36%)	$2,648,829 Land $1,465,259 Building $1,183,570
2022	$32,188.00

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
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 10 policies
Nearby Flood Policies	10 in force
Nearby Flood Claims	2 (2005–2007)
Claims Outside the SFHA	1 of 2
Most Recent Claim	May 2007 · other causes

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	Moderate above 40% of the US · lower than 76% of California
Wildfire Likelihood	0.07% 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 340 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250

May also be available: Unwired, Verizon.

Cell Coverage

5G and 4G LTE (outdoors only)

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