Marin County property record for 285 Hillside Ave, Mill Valley, CA 94941
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3.5 ba · 2,757 sqft · built 1909 |
| Lot Size | 0.181 acres (7,875 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $5,996,000 (May 2022) |
| Tax Bill | $30,391 (2025) |
| Deeds & Mortgages | May 2022 Sale Feb 2017 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 029-071-10 |
| Primary APN | 029-071-10 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Building Area | 2,757 sqft Living Area |
| Basement Area | 192 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1909 |
|---|---|
| Effective Year Built | Effective 1988 |
| Architectural Style | Contemporary |
| Lot Area | 7,875 sqft (0.181 acres) |
| Garage Area | 462 sqft |
| Parking Spaces | 2 Parking Spaces |
| Pool Area | 320 sqft |
| Deck Area | 105 sqft |
| Patio Area | 2,168 sqft |
| Heating System | Central |
|---|
| Street Address | 285 HILLSIDE AVE |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-1182 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 9,10 |
| Legal Subdivision | SUNNY HEIGHTS ADD |
| Legal Lot Number | 9,10 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 5 |
| Census Block | 5019 |
| Census Tract | 126100 |
Source: Marin County records · APN 029-071-10
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 | 285 HILLSIDE AVE, MILL VALLEY, CA 94941-1182 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Living Trust |
| Date | Document |
|---|---|
| May 05, 2022 | Grant Deed, Transfer FIRST AMERICAN TITLE COMPANY |
| Feb 24, 2017 | Grant Deed, Transfer FIRST REPUBLIC BANK |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | May 05, 2022 · Amount on Record |
| Deed Sale | May 05, 2022 · Amount on Record |
| Prior Sale | Feb 24, 2017 · Amount on Record |
| Deed Document Number | 202218638 |
| Prior Transfer Date | Aug 22, 2014 |
| Prior Transfer Doc | 0000035910 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | May 05, 2022 |
| Property Address | 285 HILLSIDE AVE, MILL VALLEY, CA 94941-1182 |
| Document Number | 0000018638 |
| Map Reference | MB 3 PG 28 |
| Instrument Date | May 03, 2022 |
| Instrument | 2022-0018638 |
| Transaction Type | Transfer |
| Record Updated | Jun 07, 2023 |
| Title Company | FIRST AMERICAN TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Tax | $6,595.60 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 2628 BRODERICK ST, SAN FRANCISCO, CA 94123-4605 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Feb 24, 2017 |
| Property Address | 285 HILLSIDE AVE, MILL VALLEY, CA 94941-1182 |
| Document Number | 0000007907 |
| Map Reference | MB3 PG28 |
| Instrument Date | Feb 16, 2017 |
| Instrument | 2017-0007907 |
| Transaction Type | Transfer |
| Record Updated | Aug 13, 2021 |
| Title Company | FIDELITY NATIONAL TITLE CO |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $3,300.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 00000 |
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 285 HILLSIDE AVE, MILL VALLEY, CA 94941-1182 |
| Document Number | 0000007908 |
|---|---|
| Date | Feb 24, 2017 |
| Instrument | 2017-0007908 |
| Name | FIRST REPUBLIC BANK |
|---|---|
| Type | Bank |
| Address | SAN FRANCISCO, CA 94111 |
| Amount | Amount Recorded |
|---|
Source: Marin County records · Assessment roll updated July 13, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Marin County |
| Municipality | Mill Valley City |
| Elementary School District | Mill Valley Elementary School District (KG - 08) |
| Secondary School District | Tamalpais Union High School District (09 - 12) |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $2,417,337 (+2%) Land $1,442,963 Building $974,374 | |
| 2025 | $30,391.00 (-2.06%) | $2,369,956 (+4.04%) Land $1,414,680 Building $955,276 |
| 2023 | $31,031.00 (-23.9%) | $2,277,954 Land $1,359,762 Building $918,192 |
| 2022 | $40,776.00 |
Source: FEMA National Flood Hazard Layer, Marin County (06041C), updated October 18, 2023 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060411261005, 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 minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 3 (1986–2010) |
| Claims Outside the SFHA | 2 of 3 |
| Most Recent Claim | Jan 2010 · rainfall accumulation |
| Wildfire Risk | Low lower than 67% of the US · lower than 81% of California |
|---|---|
| Wildfire Likelihood | 0.03% annual chance |
| 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 · sampled at 595 locations within half a mile · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: T-Mobile USA, Unwired.
5G (outdoors only) and 4G LTE
Source: EPA Safe Drinking Water Information System via ECHO, 2026 Q3 · EPA community water system boundaries v3.0, 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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