Marin County property record for 21 Sheridan Ct, Mill Valley, CA 94941
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,819 sqft · built 1957 |
| Lot Size | 0.287 acres (12,500 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $3,500,000 (Jul 2025) |
| Tax Bill | $23,318 (2025) |
| Deeds & Mortgages | Oct 2023 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 029-331-03 |
| Primary APN | 029-331-03 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Building Area | 2,819 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1957 |
|---|---|
| Effective Year Built | Effective 1960 |
| Architectural Style | Contemporary |
| Lot Area | 12,500 sqft (0.287 acres) |
| Garage Area | 470 sqft |
| Parking Spaces | 2 Parking Spaces |
| Deck Area | 580 sqft |
| Patio Area | 580 sqft |
| Heating System | Central |
|---|
| Street Address | 21 SHERIDAN CT |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-1227 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 1 |
| Census Block | 1009 |
| Census Tract | 126100 |
Source: Marin County assessment roll, as of July 13, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 21 SHERIDAN CT, MILL VALLEY, CA 94941-1227 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jul 7, 2025 · Amount on Record |
| Deed Sale | Jul 7, 2025 · Amount on Record |
| Prior Sale | Jul 3, 2024 · Amount on Record |
| Deed Document Number | 202517894 |
| Prior Transfer Date | Aug 30, 2005 |
| Prior Transfer Doc | 0000070330 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MARIN CA |
| Property Address | 21 SHERIDAN CT, MILL VALLEY, CA 94941-1227 |
| Transaction Type | Mortgage |
| Record Updated | Nov 15, 2023 |
| Name | Verified Name |
|---|
| Document Number | 0000029020 |
|---|---|
| Date | Oct 30, 2023 |
| Instrument | 2023-0029020 |
| Name | MARICA HARVEY |
|---|---|
| Type | Private Party |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
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 | $3,500,000 (+102.9%) Land $1,600,000 Building $1,900,000 | |
| 2025 | $23,318.00 (+0.92%) | $1,725,000 (-0.22%) Land $1,125,000 Building $600,000 |
| 2023 | $23,105.00 (+4.87%) Homeowner's exemption | $1,728,819 Land $1,354,704 Building $374,115 |
| 2022 | $22,032.00 |
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.
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 10 policies |
| Nearby Flood Policies | 10 in force |
| Nearby Flood Claims | 9 (1982–1998) |
| Claims Outside the SFHA | 8 of 9 |
| Most Recent Claim | May 1998 · 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 40% of the US · lower than 76% of California |
|---|---|
| Wildfire Likelihood | 0.06% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 166 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
May also be available: Verizon.
5G (outdoors only) and 4G LTE
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