1855 Mar West St, Tiburon (Belvedere Tiburon), CA 94920 Property Records

Marin County property record for 1855 Mar West St, Tiburon, CA 94920

Property Summary

Property Type	Single Family Home
Details	3 bd · 3.5 ba · 2,410 sqft · built 1982
Lot Size	0.109 acres (4,725 sqft)
Owner	2 Individual Names on Record
Last Sale	$2,630,000 (Oct 2026)
Tax Bill	$12,508 (2025)
Deeds & Mortgages	Oct 2026 Transfer Oct 2026 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`059-360-01`

Property Details

APN / Parcel Number

Primary APN	`059-360-01`

Interior

Bedrooms	3 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Building Area	2,410 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1982
Effective Year Built	Effective 1985
Architectural Style	Colonial
Lot Area	4,725 sqft (0.109 acres)
Garage Area	420 sqft
Parking Spaces	2 Parking Spaces
Deck Area	1,047 sqft
Patio Area	1,047 sqft

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	1855 MAR WEST ST
City	BELVEDERE TIBURON
State	CA
Zip	94920-1901
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Subdivision	PARCEL MAP WALLACE CONDOMINIUM
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	3
Census Block	3019
Census Tract	124200

Owner

Source: Marin County records, as of October 15, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Individual Names on Record
Mailing Address	4 SAN MARCOS CT, NOVATO, CA 94945-1631
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Oct 7, 2026	Affidavit of Death of Trustee, Transfer
Oct 7, 2026	Grant Deed, Transfer · Conventional Mortgage BANK OF AMERICA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Oct 7, 2026 · Amount on Record
Deed Sale	Oct 7, 2026 · Amount on Record
Deed Document Number	202628789
Prior Transfer Date	Oct 10, 2016
Prior Transfer Doc	0000050660
Record Updated	Oct 29, 2026

October 2026: Affidavit of Death of Trustee, Transfer

Document Type	Affidavit of Death of Trustee
Jurisdiction	MARIN CA
Recording Date	Oct 7, 2026
Property Address	1855 MAR WEST ST, BELVEDERE TIBURON, CA 94920-1901
Document Number	0000028788
Instrument Date	Sep 30, 2026
Instrument	202628788
Transaction Type	Transfer
Record Updated	Oct 14, 2026

Transaction

Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4 SAN MARCOS CT, NOVATO, CA 94945-1631

October 2026: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MARIN CA
Recording Date	Oct 7, 2026
Property Address	1855 MAR WEST ST, BELVEDERE TIBURON, CA 94920-1901
Document Number	0000028789
Instrument Date	Sep 28, 2026
Instrument	202628789
Transaction Type	Transfer
Record Updated	Oct 14, 2026
Title Company	FIRST AMERICAN TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$292,193.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1855 MAR WEST ST, BELVEDERE TIBURON, CA 94920-1901

Mortgage

Document Number	0000028790,
Date	Oct 7, 2026
Instrument	202628790

Lender

Name	BANK OF AMERICA

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Nov 1, 2056

Interest

Rate Type	Adjustable Rate
Rate	5.75%
Initial Type	Adjustable Rate
Adjustable	Adjustable Rate Rider
Max Rate	-1%

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	California
County	Marin County
Municipality	Tiburon Town
Elementary School District	Reed Union 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		$952,062 (+2%) Land $362,551 Building $589,511
2025	$12,508.00 (+8.97%) Homeowner's exemption	$933,399 (+4.04%) Land $355,444 Building $577,955
2023	$11,478.00 (+4%) Homeowner's exemption	$897,157 Land $341,643 Building $555,514
2022	$11,037.00

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

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 32 individual policies
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	37 units insured incl. 5 condo units
Nearby Flood Claims	14 (1982–2026)
Claims Outside the SFHA	7 of 14
Most Recent Claim	Jan 2026 · tidal / storm surge
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 99.1% of the US · lower than 99.2% of California
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond 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 433 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
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: AT&T.

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