28 Turtle Rock Ct, Tiburon (Belvedere Tiburon), CA 94920 Property Records

Marin County property record for 28 Turtle Rock Ct, Tiburon, CA 94920

Property Summary

Property Type	Single Family Home
Details	4 bd · 3.5 ba · 3,897 sqft · built 1989
Lot Size	0.81 acres (35,265 sqft)
Owner	2 Company Names on Record
Last Sale	$3,800,000 (Aug 2021)
Tax Bill	$46,438 (2025)
Deeds & Mortgages	Mar 2018 Mortgage Jan 2022 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`034-370-08`

Property Details

APN / Parcel Number

Primary APN	`034-370-08`

Interior

Bedrooms	4 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	3,897 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1989
Effective Year Built	Effective 1990
Architectural Style	Contemporary
Exterior Material	Wood
Roof Material	Composition Shingle
Lot Area	35,265 sqft (0.81 acres)
Garage Area	660 sqft
Parking Spaces	2 Parking Spaces
Deck Area	798 sqft
Patio Area	798 sqft

Utilities, Heating & Cooling

Heating System	Central
Heating Fuel	Gas
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	28 TURTLE ROCK CT
City	BELVEDERE TIBURON
State	CA
Zip	94920-1300
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RPD
Legal Description	L26 /B20P44 M TIBURON PERINI #2
Legal Subdivision	TIBURON PERINI 02
Legal Tract	2
Legal Lot Number	26
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	3
Census Block	3000
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	28 TURTLE ROCK CT, BELVEDERE TIBURON, CA 94920-1300
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Borrower in Default

Deeds, Mortgages & Sale History

Date	Document
Mar 23, 2018	Deed of Trust, Mortgage · ARM FIRST REPUBLIC BANK
Jan 5, 2022	Intrafamily Transfer, Transfer OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY
Aug 24, 2021	Grant Deed, Transfer · Conventional Mortgage UBS BANK USA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 24, 2021 · Amount on Record
Deed Sale	Aug 24, 2021 · Amount on Record
Deed Document Number	202153310
Last Transfer Date	Nov 15, 2021
Transfer Doc	0000000596
Record Updated	Sep 20, 2026

March 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	28 TURTLE ROCK CT, TIBURON, CA 94920-1300
Transaction Type	Mortgage
Record Updated	Aug 23, 2022
Title Company	FIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000010359
Date	Mar 23, 2018
Instrument	2018-0010359

Lender

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

Agreement

Type	ARM
Amount	Amount Recorded
Term	361 Months
Due	Apr 1, 2048

Interest

Rate Type	Adjustable Rate
Rate	3.95%
Type Change Date	Apr 1, 2025
Change Frequency	Annually
Min Rate At Change	2.2%
Max Rate At Change	9.95%
Index	LIBOR

January 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	MARIN CA
Recording Date	Jan 5, 2022
Property Address	28 TURTLE ROCK CT, TIBURON, CA 94920-1300
Document Number	0000000596
Map Reference	VOL 20 PG 44
Instrument Date	Nov 15, 2021
Instrument	2022-0000596
Transaction Type	Transfer
Record Updated	Aug 3, 2023
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	28 TURTLE ROCK CT, TIBURON, CA 94920-1300

August 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MARIN CA
Recording Date	Aug 24, 2021
Property Address	28 TURTLE ROCK CT, TIBURON, CA 94920-1300
Document Number	0000053310
Map Reference	VOL 20 PG 44
Instrument Date	Aug 19, 2021
Instrument	2021-0053310
Transaction Type	Transfer
Record Updated	Aug 3, 2023
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$4,180.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	28 TURTLE ROCK CT, TIBURON, CA 94920-1300

Mortgage

Document Number	0000053311
Date	Aug 24, 2021
Instrument	2021-0053311

Lender

Name	UBS BANK USA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Sep 1, 2051

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		$4,107,783 (+2%) Land $2,381,324 Building $1,726,459
2025	$46,438.00 (+5.12%) Homeowner's exemption	$4,027,254 (+4.04%) Land $2,334,640 Building $1,692,614
2023	$44,176.00 (+1.24%) Homeowner's exemption	$3,870,900 Land $2,244,000 Building $1,626,900
2022	$43,637.00

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
Nearby Flood Policies	2 in force
Nearby Flood Claims	1 (1982)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Jan 1982 · Severe Storms, Flood, Mudslides & High Tide

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 67% of the US · lower than 81% of California
Wildfire Likelihood	0.03% 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 311 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

May also be available: Etheric Networks, Verizon.

Cell Coverage

5G (outdoors only) and 4G LTE

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