12 Midden Ln, Tiburon (Belvedere Tiburon), CA 94920 Property Records

Marin County property record for 12 Midden Ln, Tiburon, CA 94920

Property Summary

Property Type	Single Family Home
Details	4 bd · 5.5 ba · 4,897 sqft · built 1992
Lot Size	0.51 acres (22,216 sqft)
Owner	2 Company Names on Record
Last Sale	$4,600,000 (Jul 2020)
Tax Bill	$57,725 (2025)
Deeds & Mortgages	Jul 2020 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`038-410-15`

Property Details

APN / Parcel Number

Primary APN	`038-410-15`

Interior

Bedrooms	4 Beds
Full Baths	5.5 Baths
Half Baths	1 Half Bath
Building Area	4,897 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1992
Effective Year Built	Effective 2000
Architectural Style	Contemporary
Lot Area	22,216 sqft (0.51 acres)
Garage Area	658 sqft
Parking Spaces	2 Parking Spaces
Pool Area	563 sqft
Deck Area	408 sqft
Patio Area	408 sqft

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	12 MIDDEN LN
City	BELVEDERE TIBURON
State	CA
Zip	94920-2114
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	L23 /B20P46 M RING MOUNTAIN SUBD
Legal Subdivision	RING MOUNTAIN
Legal Lot Number	23
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	5
Census Block	5003
Census Tract	124100

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	12 MIDDEN LN, BELVEDERE TIBURON, CA 94920-2114
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Living Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 28, 2020 · Amount on Record
Deed Sale	Jul 28, 2020 · Amount on Record
Deed Document Number	202032996
Prior Transfer Date	Jul 9, 2014
Prior Transfer Doc	0000029407
Record Updated	Oct 29, 2026

July 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MARIN CA
Recording Date	Jul 28, 2020
Property Address	12 MIDDEN LN, TIBURON, CA 94920-2114
Document Number	0000032996
Map Reference	VOL 20 PG 46
Instrument Date	Jul 23, 2020
Instrument	2020-0032996
Transaction Type	Transfer
Record Updated	Aug 13, 2021
Title Company	OLD REPUBLIC TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$5,060.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	112 MIDDEN LANE, TIBURON, CA 94920

Mortgage

Document Number	0000032997
Date	Jul 28, 2020
Instrument	2020-0032997

Lender

Name	FIRST REPUBLIC BANK
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Aug 1, 2050

Interest

Rate Type	Adjustable Rate
Rate	2.85%
Type Change Date	Aug 1, 2030
Change Frequency	Monthly
Min Rate At Change	2.95%
Index	1-Year CMT
Max Rate	10.9%

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		$5,078,676 (+2%) Land $2,870,556 Building $2,208,120
2025	$57,725.00 (+5.13%)	$4,979,132 (+4.04%) Land $2,814,292 Building $2,164,840
2023	$54,909.00 (+1.24%)	$4,785,840 Land $2,705,040 Building $2,080,800
2022	$54,236.00

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 10 policies
Nearby Flood Policies	10 in force
Nearby Flood Claims	2 (2021)
Claims Outside the SFHA	2 of 2
Most Recent Claim	Oct 2021 · rainfall accumulation

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 42% of the US · lower than 75% of California
Wildfire Likelihood	0.06% annual chance
Exposure	Direct burnable vegetation

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

Provider	Max Down / Up (Mbps)
AT&T Fiber	5,000 / 5,000
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
T-Mobile Fixed Wireless	100 / 20

May also be available: Etheric Networks, Verizon.

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