529 Comstock Dr, Tiburon (Belvedere Tiburon), CA 94920 Property Records

Marin County property record for 529 Comstock Dr, Tiburon, CA 94920

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,200 sqft · built 1952
Lot Size	0.241 acres (10,500 sqft)
Owner	2 Company Names on File
Last Sale	$485,000 (Mar 1995)
Tax Bill	$10,174 (2025)
Deeds & Mortgages	Dec 2023 Transfer Dec 2022 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`055-082-21`

Property Details

APN / Parcel Number

Primary APN	`055-082-21`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,200 sqft Living Area
Basement Area	546 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1952
Effective Year Built	Effective 1971
Architectural Style	Contemporary
Exterior Material	Wood Siding
Construction Type	Frame
Roof Material	Tar & Gravel
Lot Area	10,500 sqft (0.241 acres)
Porch	Porch
Deck Area	532 sqft
Patio Area	532 sqft

Utilities, Heating & Cooling

Heating System	Central
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	529 COMSTOCK DR
City	BELVEDERE TIBURON
State	CA
Zip	94920-1309
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	L24 /B7P48 M LITTLE REED HEIGHTS
Legal Subdivision	LITTLE REED HEIGHTS 02
Legal Lot Number	24
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	4
Census Block	4002
Census Tract	124200

Owner

529 Comstock Dr is owned by a company that bought it in March 1995 and is owner-occupied.

Source: Marin County records, as of July 13, 2026

Owner of Record	2 Company Names on File
Mailing Address	529 COMSTOCK DR, BELVEDERE TIBURON, CA 94920-1309
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Borrower in Default

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Dec 29, 2023	Gift Deed, Transfer
Dec 29, 2022	Intrafamily Transfer, Transfer
Dec 30, 2020	Quit Claim Deed, Transfer NOT AVAILABLE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Mar 30, 1995 · Amount on File
Deed Sale	Mar 30, 1995 · Amount on File
Deed Document Number	199514356
Prior Transfer Date	Sep 17, 1994
Prior Transfer Doc	0000074872
Record Updated	Oct 29, 2026

December 2023: Gift Deed, Transfer

Document Type	Gift Deed
Jurisdiction	MARIN CA
Recording Date	Dec 29, 2023
Property Address	529 COMSTOCK DR, TIBURON, CA 94920-1309
Document Number	0000034553
Map Reference	VOL 7 PG 48
Instrument Date	Dec 29, 2023
Instrument	2023-0034553
Transaction Type	Transfer
Record Updated	Jan 10, 2024

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	529 COMSTOCK DR, TIBURON, CA 94920-1309

December 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	MARIN CA
Recording Date	Dec 29, 2022
Property Address	529 COMSTOCK DR, TIBURON, CA 94920-1309
Document Number	0000041462
Map Reference	VOL 7 PG 48
Instrument Date	Dec 29, 2022
Instrument	2022-0041462
Transaction Type	Transfer
Record Updated	Jan 19, 2023

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
Relationship	Tenants in Common
Address	529 COMSTOCK DR, TIBURON, CA 94920-1309

December 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	MARIN CA
Recording Date	Dec 30, 2020
Property Address	529 COMSTOCK DR, TIBURON, CA 94920-1309
Document Number	0000067908
Instrument Date	Dec 30, 2020
Instrument	67908
Transaction Type	Transfer
Record Updated	Jan 13, 2021
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer Partial Interest

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Tenants in Common
Address	529 COMSTOCK DR TIBURON CA 949201309, TIBURON, CA 94920-1309

Tax Assessment & Valuation

The 2025 property tax bill for 529 Comstock Dr was $10,174 with a homeowner's exemption.

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		$818,895 (+2%) Land $464,831 Building $354,064
2025	$10,174.00 Homeowner's exemption	$802,841 Land $455,718 Building $347,123
2023	$9,474.00 (+2.21%) Homeowner's exemption	$761,437 Land $428,824 Building $332,613
2022	$9,269.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

FEMA maps place 529 Comstock Dr in Zone X, an area of minimal flood risk, though there have been 8 flood claims nearby since 1980.

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	9 in force
Nearby Flood Claims	8 (1980–2021)
Claims Outside the SFHA	8 of 8
Most Recent Claim	Feb 2021 · other causes
Claims by Event	Severe Storms, Flood, Mudslides & High Tide, Jan 1982 · 3 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

Wildfire risk around 529 Comstock Dr is low, with a 0.01% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 96% of the US · lower than 97.4% of California
Wildfire Likelihood	0.01% 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 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.

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