Marin County property record for 20 Alta Ave, Lagunitas, CA 94938 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,420 sqft · built 1918 |
| Lot Size | 0.299 acres (13,005 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $254,000 (Nov 1998) |
| Tax Bill | $7,359 (2025) |
| Deeds & Mortgages | Jan 2020 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 168-093-04 |
| Primary APN | 168-093-04 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,420 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1918 |
|---|---|
| Effective Year Built | Effective 1955 |
| Architectural Style | Contemporary |
| Lot Area | 13,005 sqft (0.299 acres) |
| Garage Area | 322 sqft |
| Parking Spaces | 1 Parking Space |
| Deck Area | 288 sqft |
| Patio Area | 288 sqft |
| Heating System | Floor/Wall Furnace |
|---|
| Street Address | 20 ALTA AVE |
|---|---|
| City | LAGUNITAS |
| State | CA |
| Zip | 94938-1510 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | MAP E1 564 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | NORTHWEST MARIN |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 113000 |
Source: Marin County records · APN 168-093-04
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 | PO BOX 527, LAGUNITAS, CA 94938-0527 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Living Trust |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Nov 03, 1998 · Amount on Record |
| Deed Sale | Nov 03, 1998 · Amount on Record |
| Deed Document Number | 199881237 |
| Last Transfer Date | Dec 19, 2019 |
| Transfer Doc | 0000001329 |
| Record Updated | Sep 20, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Jan 13, 2020 |
| Property Address | 20 ALTA AVE, LAGUNITAS, CA 94938-1510 |
| Document Number | 0000001329 |
| Instrument Date | Dec 19, 2019 |
| Instrument | 1329 |
| Transaction Type | Transfer |
| Record Updated | Jan 27, 2020 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | PO BOX 527 LAGUNITAS CA 949380527, LAGUNITAS, CA 94938-0527 |
Source: Marin County records · Assessment roll updated July 13, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Marin County |
| Elementary School District | Lagunitas 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 | $510,667 (+2%) Land $267,994 Building $242,673 | |
| 2025 | $7,359.00 (+6.51%) Homeowner's exemption | $500,656 (+4.04%) Land $262,740 Building $237,916 |
| 2023 | $6,909.00 (+2.37%) Homeowner's exemption | $481,218 Land $252,539 Building $228,679 |
| 2022 | $6,749.00 |
Source: FEMA National Flood Hazard Layer, Marin County (06041C), updated October 18, 2023 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060411130003, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Flood Insurance Cost | Premium on Record median of 19 individual NFIP policies nearby |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 19 in force |
| Nearby Flood Claims | 28 (1982–2021) |
| Claims Outside the SFHA | 9 of 28 |
| Most Recent Claim | Oct 2021, tidal / storm surge |
| Claims By Storm |
|
| Wildfire Risk | High above 75% of the US · above 51% of California |
|---|---|
| Wildfire Likelihood | About 1 in 236 per year |
| Exposure | Direct burnable vegetation at the parcel |
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, availability as of December 31, 2025 · Published October 2026 · based on 130 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
May also be available at this address: T-Mobile USA, Verizon. Availability varies by address; speeds are provider-advertised maximums, not measured.
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