Marin County property record for 117 Sycamore Ave, Mill Valley, CA 94941
| Property Type | Duplex |
|---|---|
| Details | 3 bd · 3 ba · 1,977 sqft · built 1906 |
| Lot Size | 0.138 acres (6,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,163,000 (Nov 2010) |
| Tax Bill | $25,856 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 028-221-18 |
| Primary APN | 028-221-18 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Units | 2 Units |
| Building Area | 1,977 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1906 |
|---|---|
| Effective Year Built | Effective 1976 |
| Architectural Style | Duplex Single |
| Lot Area | 6,000 sqft (0.138 acres) |
| Garage Area | 253 sqft |
| Parking Spaces | 1 Parking Space |
| Deck Area | 60 sqft |
| Patio Area | 78 sqft |
| Heating System | Central |
|---|
| Street Address | 117 SYCAMORE AVE |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-2807 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Subdivision | TAMALPAIS PARK |
| Legal Lot Number | 86 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 3 |
| Census Block | 3004 |
| Census Tract | 126100 |
117 Sycamore Ave, a duplex, is owned and occupied by two individuals who bought it in November 2010.
Source: Marin County records, as of July 13, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 117 SYCAMORE AVE, MILL VALLEY, CA 94941-2807 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 1, 2010 · Amount on File |
| Deed Sale | Nov 1, 2010 · Amount on File |
| Deed Document Number | 201054672 |
| Prior Transfer Date | Feb 26, 2002 |
| Prior Transfer Doc | 0000015634 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 117 Sycamore Ave was $25,856 with a homeowner's exemption.
Source: Marin County assessment roll, as of July 13, 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) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,760,818 (+2%) Land $929,077 Building $831,741 | |
| 2025 | $25,856.00 Homeowner's exemption | $1,726,297 Land $910,862 Building $815,435 |
| 2023 | $24,570.00 (+6.62%) Homeowner's exemption | $1,659,282 Land $875,504 Building $783,778 |
| 2022 | $23,045.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 117 Sycamore Ave in Zone AE, a high-risk flood area; flood insurance is required for federally backed loans.
Source: FEMA National Flood Hazard Layer, effective October 18, 2023 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on File median of 61 individual policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 69 units insured incl. 8 condo units |
| Nearby Flood Claims | 43 (1979–2024) |
| Claims Outside the SFHA | 6 of 43 |
| Most Recent Claim | Dec 2024 · river or lake flooding |
| 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 117 Sycamore Ave 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 762 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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