Marin County property record for 37 Heron Dr, Mill Valley, CA 94941
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 4.5 ba · 4,393 sqft · built 1996 |
| Lot Size | 0.346 acres (15,074 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $5,100,000 (May 2023) |
| Tax Bill | $63,384 (2025) |
| Deeds & Mortgages | Oct 2025 Transfer Apr 2024 Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 043-370-25 |
| Primary APN | 043-370-25 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4.5 Baths |
| Half Baths | 1 Half Bath |
| Building Area | 4,393 sqft Living Area |
| Basement Area | 64 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1996 |
|---|---|
| Effective Year Built | Effective 1996 |
| Lot Area | 15,074 sqft (0.346 acres) |
| Garage Area | 791 sqft |
| Parking Spaces | 3 Parking Spaces |
| Deck Area | 1,209 sqft |
| Patio Area | 1,209 sqft |
| Heating System | Radiant |
|---|
| Street Address | 37 HERON DR |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-3264 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Subdivision | STRAWBERRY POINT |
| Legal Lot Number | 61 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 125000 |
37 Heron Dr is owner-occupied and held in a trust since September 2025.
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 Trust Names on File |
|---|---|
| Mailing Address | 37 HERON DR, MILL VALLEY, CA 94941-3264 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
| Date | Document |
|---|---|
| Oct 21, 2025 | Intrafamily Transfer, Transfer |
| Apr 30, 2024 | Deed of Trust, Mortgage · Conventional Mortgage WINTRUST MORTGAGE |
| May 16, 2023 | Grant Deed, Transfer FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 16, 2023 · Amount on File |
| Deed Sale | May 16, 2023 · Amount on File |
| Prior Sale | Mar 25, 2014 · Amount on File |
| Deed Document Number | 202312309 |
| Last Transfer Date | Sep 18, 2025 |
| Transfer Doc | 0000027072 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Oct 21, 2025 |
| Property Address | 37 HERON DR, MILL VALLEY, CA 94941-3264 |
| Document Number | 0000027072 |
| Map Reference | VOL 20 PG 16 |
| Instrument Date | Sep 18, 2025 |
| Instrument | 2025-0027072 |
| Transaction Type | Transfer |
| Record Updated | Nov 6, 2025 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 37 HERON DR, MILL VALLEY, CA 94941-3264 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MARIN CA |
| Property Address | 37 HERON DR, MILL VALLEY, CA 94941-3264 |
| Transaction Type | Mortgage |
| Record Updated | May 22, 2024 |
| Name | Verified Name |
|---|---|
| Address | 37 HERON DR, MILL VALLEY, CA 94941-3264 |
| Document Number | 0000012334 |
|---|---|
| Date | Apr 30, 2024 |
| Instrument | 2024-0012334 |
| Name | WINTRUST MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Address | 9700 W HIGGINS RD STE 300, ROSEMONT, IL 60018 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | May 1, 2054 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 6.25% |
| Adjustable | Adjustable Rate Rider |
| Type Change Date | May 1, 2031 |
| Change Frequency | 6 Months |
| Min Rate At Change | 2.75% |
| Max Rate At Change | 11.2% |
| Index | Other |
| Max Rate | 11.2% |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | May 16, 2023 |
| Property Address | 37 HERON DR, MILL VALLEY, CA 94941-3264 |
| Document Number | 0000012309 |
| Map Reference | VOL 20 PG 16 |
| Instrument Date | May 2, 2023 |
| Instrument | 2023-0012309 |
| Transaction Type | Transfer |
| Record Updated | Jun 1, 2023 |
| Title Company | FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Tax | $5,610.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 37 HERON DR, MILL VALLEY, CA 94941-3264 |
The 2025 property tax bill for 37 Heron Dr was $63,384.
Source: Marin County assessment roll, as of July 13, 2026
| Type | Name |
|---|---|
| State | California |
| County | Marin County |
| Elementary School District | Mill Valley Elementary School District (KG - 08) |
| Secondary School District | Tamalpais Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $5,412,120 (+2%) Land $3,183,600 Building $2,228,520 | |
| 2025 | $63,384.00 Homeowner's exemption | $5,306,040 Land $3,121,200 Building $2,184,840 |
| 2023 | $62,420.00 (+3.66%) Homeowner's exemption | $5,301,990 Land $3,181,194 Building $2,120,796 |
| 2022 | $60,218.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 37 Heron Dr 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 VE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 29 individual policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 81 units insured incl. 52 condo units |
| Nearby Flood Claims | 24 (1978–2014) |
| Claims Outside the SFHA | 2 of 24 |
| Most Recent Claim | Dec 2014 · rainfall accumulation |
| 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 37 Heron Dr is low, with less than 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 | Under 0.01% annual chance |
| Exposure | None beyond 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 27 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 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
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