Marin County property record for 40 Butterfield Rd, San Anselmo, CA 94960
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,100 sqft · built 1941 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $257,000 (Sep 1994) |
| Tax Bill | $8,147 (2025) |
| Deeds & Mortgages | Apr 2023 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 005-144-26 |
| Primary APN | 005-144-26 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Building Area | 1,100 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1941 |
|---|---|
| Effective Year Built | Effective 1941 |
| Architectural Style | Contemporary |
| Lot Area | 5,000 sqft (0.115 acres) |
| Garage Area | 240 sqft |
| Parking Spaces | 1 Parking Space |
| Deck Area | 240 sqft |
| Patio Area | 240 sqft |
| Street Address | 40 BUTTERFIELD RD |
|---|---|
| City | SAN ANSELMO |
| State | CA |
| Zip | 94960-1520 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | BLK 1 LOT 14 |
| Legal Subdivision | MORNINGSIDE COURT MAP 01 |
| Legal Block | 1 |
| Legal Lot Number | 14 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | ROSS VALLEY |
| Census Block Group | 4 |
| Census Block | 4013 |
| Census Tract | 115000 |
40 Butterfield Rd is owned and occupied by two individuals who acquired it in April 2023.
Source: Marin County records, as of July 13, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 40 BUTTERFIELD RD, SAN ANSELMO, CA 94960-1520 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 15, 1994 · Amount on File |
| Deed Sale | Sep 15, 1994 · Amount on File |
| Deed Document Number | 199467634 |
| Last Transfer Date | Apr 25, 2023 |
| Transfer Doc | 0000010731 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Apr 27, 2023 |
| Property Address | 40 BUTTERFIELD RD, SAN ANSELMO, CA 94960-1520 |
| Document Number | 0000010731 |
| Map Reference | VOL 5 PG 32 |
| Instrument Date | Apr 25, 2023 |
| Instrument | 2023-0010731 |
| Transaction Type | Transfer |
| Record Updated | May 10, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 40 BUTTERFIELD RD, SAN ANSELMO, CA 94960-1520 |
Source: Marin County assessment roll, as of July 13, 2026
| Type | Name |
|---|---|
| State | California |
| County | Marin County |
| Municipality | San Anselmo Town |
| Elementary School District | Ross Valley Elementary School District (KG - 08) |
| Secondary School District | Tamalpais Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $440,276 (+2%) Land $226,134 Building $214,142 | |
| 2025 | $8,147.00 (+4.6%) Homeowner's exemption | $431,643 (+4.04%) Land $221,700 Building $209,943 |
| 2023 | $7,789.00 (+1.74%) Homeowner's exemption | $414,884 Land $213,092 Building $201,792 |
| 2022 | $7,656.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 40 Butterfield Rd in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 75 policies |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 75 in force |
| Nearby Flood Claims | 54 (1982–2022) |
| Claims Outside the SFHA | 12 of 54 |
| Most Recent Claim | Aug 2022 · other causes |
| Claims by Event |
|
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 risk around 40 Butterfield Rd 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 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Indirect within ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
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 |
| 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.
Source: FCC Broadband Data Collection, based on 810 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Unwired.
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