18 Sierra Ave, San Anselmo, CA 94960 Property Records

Marin County property record for 18 Sierra Ave, San Anselmo, CA 94960

Property Summary

Property Type	Duplex
Details	3 bd · 2 ba · 1,214 sqft · built 1914
Lot Size	0.081 acres (3,520 sqft)
Owner	2 Company Names on Record
Last Sale	$302,000 (Oct 1998)
Tax Bill	$8,694 (2025)
Deeds & Mortgages	Jul 2019 Line of Credit Nov 2017 Transfer
Flood Zone	Zone X (minimal risk)
APN	`005-191-13`

Property Details

APN / Parcel Number

Primary APN	`005-191-13`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Units	2 Units
Building Area	1,214 sqft Living Area

Exterior

Year Built	Built 1914
Effective Year Built	Effective 1960
Architectural Style	Contemporary
Lot Area	3,520 sqft (0.081 acres)
Deck Area	70 sqft
Patio Area	70 sqft

Location & Zoning

Street Address	18 SIERRA AVE
City	SAN ANSELMO
State	CA
Zip	94960-1801
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Local Zoning Code	R1
Legal Description	LOT 15
Legal Subdivision	GRAND VIEW
Legal Lot Number	15
Jurisdiction	MARIN CA
Township / Civil Division	ROSS VALLEY
Census Block Group	1
Census Block	1000
Census Tract	116000

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	18 SIERRA AVE, SAN ANSELMO, CA 94960-1801
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Living Trust

Deeds, Mortgages & Sale History

Date	Document
Jul 26, 2019	Deed of Trust, Mortgage · Line of Credit BANK OF THE WEST
Nov 9, 2017	Quit Claim Deed, Transfer Quitclaim

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Oct 1, 1998 · Amount on Record
Deed Sale	Oct 1, 1998 · Amount on Record
Deed Document Number	199871841
Last Transfer Date	Nov 3, 2017
Transfer Doc	0000044904
Record Updated	Sep 20, 2026

July 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	18 SIERRA AVE, SAN ANSELMO, CA 94960-1801
Document Number	0000030922
Instrument Date	Jul 26, 2019
Transaction Type	Mortgage
Record Updated	Sep 11, 2019
Title Company	OTHER

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	18 SIERRA AVE SAN ANSELMO CA 949601801, SAN ANSELMO, CA 94960-1801

Mortgage

Document Number	0000030922
Date	Aug 28, 2019
Instrument	30922

Lender

Name	BANK OF THE WEST
Type	Bank
Address	OMAHA, NE 68154

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	360 Months
Due	Aug 27, 2049

Interest

Rate Type	Adjustable Rate

November 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	MARIN CA
Recording Date	Nov 9, 2017
Property Address	18 SIERRA AVE, SAN ANSELMO, CA 94960-1801
Document Number	0000044904
Instrument Date	Nov 3, 2017
Instrument	44904
Transaction Type	Transfer
Record Updated	Dec 4, 2017

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	18 SIERRA AVE SAN ANSELMO CA 949601801, SAN ANSELMO, CA 94960-1801

Tax Assessment & Valuation

Source: Marin County assessment roll, as of July 13, 2026

Property Jurisdictions

Type	Name
State	California
County	Marin County
Municipality	San Anselmo Town
Elementary School District	Ross 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		$491,251 (+2%) Land $287,812 Building $203,439
2025	$8,694.00 (-3.3%) Homeowner's exemption	$481,619 (+4.04%) Land $282,169 Building $199,450
2023	$8,991.00 (+2.01%) Homeowner's exemption	$462,921 Land $271,215 Building $191,706
2022	$8,814.00

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 A, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 76 individual policies
Community Rating System	Class 8 (10% premium discount)
Nearby Flood Policies	104 units insured incl. 28 condo units
Nearby Flood Claims	52 (1978–2023)
Claims Outside the SFHA	18 of 52
Most Recent Claim	Jan 2023 · Severe Winter Storms, Flooding, Landslides, And Mudslides
Claims by Event	Severe Winter Storms, Flooding, And Mudslides, Feb 2017 · 3 claims Severe Storms, Flooding, Mudslides, And Landslides, Jan 2006 · 27 claims Severe Storms, Flood, Mudslides & High Tide, Jan 1982 · 12 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 80% of the US · lower than 88% of California
Wildfire Likelihood	0.01% annual chance
Exposure	Indirect within ember reach

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 810 locations within half a mile, as of December 31, 2025

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

May also be available: Unwired.

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