Marin County property record for 29 Sonora Ct, Tiburon, CA 94920
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 2,282 sqft · built 1956 |
| Lot Size | 0.248 acres (10,800 sqft) |
| Owner | 2 Company Names on File |
| Tax Bill | $5,037 (2025) |
| Deeds & Mortgages | Feb 2021 Transfer Feb 2021 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 055-101-09 |
| Primary APN | 055-101-09 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Building Area | 2,282 sqft Living Area |
| Basement Area | 49 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1956 |
|---|---|
| Effective Year Built | Effective 1956 |
| Architectural Style | Contemporary |
| Lot Area | 10,800 sqft (0.248 acres) |
| Deck Area | 132 sqft |
| Patio Area | 132 sqft |
| Heating System | Central |
|---|
| Street Address | 29 SONORA CT |
|---|---|
| City | BELVEDERE TIBURON |
| State | CA |
| Zip | 94920-1322 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Lot Number | 111 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 4 |
| Census Block | 4002 |
| Census Tract | 124200 |
Source: Marin County records · APN 055-101-09
Assessment roll updated July 13, 2026 · Last verified July 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 File |
|---|---|
| Mailing Address | 29 SONORA CT, BELVEDERE TIBURON, CA 94920-1322 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Borrower in Default |
| Date | Document |
|---|---|
| Feb 11, 2021 | Intrafamily Transfer, Transfer |
| Feb 11, 2021 | Intrafamily Transfer, Transfer |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Transfer Date | Feb 08, 2021 |
| Transfer Doc | 0000010074 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Feb 11, 2021 |
| Property Address | 29 SONORA CT, TIBURON, CA 94920-1322 |
| Document Number | 0000010074 |
| Map Reference | MB B PG 56 |
| Instrument Date | Feb 08, 2021 |
| Instrument | 2021-0010074 |
| Transaction Type | Transfer |
| Record Updated | Jun 07, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 29 SONORA CT, TIBURON, CA 94920-1322 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Feb 11, 2021 |
| Property Address | 29 SONORA CT, TIBURON, CA 94920-1322 |
| Document Number | 0000010073 |
| Map Reference | MB 8 PG 56 |
| Instrument Date | Feb 08, 2021 |
| Instrument | 2021-0010073 |
| Transaction Type | Transfer |
| Record Updated | Aug 13, 2021 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 29 SONORA CT, TIBURON, CA 94920-1322 |
Source: Marin County records · Assessment roll updated July 13, 2026 · Last verified July 2026
| 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) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $185,051 (+2%) Land $65,018 Building $120,033 | |
| 2025 | $5,037.00 (+6.49%) Homeowner's exemption | $181,423 (+4.04%) Land $63,743 Building $117,680 |
| 2023 | $4,730.00 (-0.38%) Homeowner's exemption | $174,379 Land $61,268 Building $113,111 |
| 2022 | $4,748.00 |
Source: FEMA National Flood Hazard Layer, Marin County (06041C), as of October 18, 2023 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060411242004, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 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 |
|
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
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.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: Etheric Communications, LLC..
Based on FCC filings for 116 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System, water system CA2110002, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | MARIN MUNICIPAL WATER DISTRICT serves 188,116 people |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Aug 2023 |
| Lead | Under 1 ppb (2019–2021) action level 15 ppb |
| 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 as reported to EPA, 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. The full violation and enforcement history is in the system's EPA record.
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