Marin County property record for 25 Sidney St, Mill Valley, CA 94941
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 2.5 ba · 2,850 sqft · built 1937 |
| Lot Size | 0.145 acres (6,300 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $1,825,000 (Oct 2020) |
| Tax Bill | $13,301 (2025) |
| Deeds & Mortgages | Feb 2023 Mortgage Oct 2020 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 029-213-07 |
| Primary APN | 029-213-07 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Building Area | 2,850 sqft Living Area |
| Basement Area | 110 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1937 |
|---|---|
| Effective Year Built | Effective 1968 |
| Architectural Style | Contemporary |
| Lot Area | 6,300 sqft (0.145 acres) |
| Garage Area | 288 sqft |
| Parking Spaces | 1 Parking Space |
| Deck Area | 201 sqft |
| Patio Area | 201 sqft |
| Heating System | Central |
|---|
| Street Address | 25 SIDNEY ST |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-1353 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 1 |
| Census Block | 1018 |
| Census Tract | 126100 |
Source: Marin County records, 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 Company Names on Record |
|---|---|
| Mailing Address | 25 SIDNEY ST, MILL VALLEY, CA 94941-1353 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Living Trust |
| Date | Document |
|---|---|
| Feb 22, 2023 | Deed of Trust, Mortgage · Conventional Mortgage BANK OF AMERICA NA |
| Oct 9, 2020 | Grant Deed, Transfer CAHILL G K & S K KING TR (LT) |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 9, 2020 · Amount on Record |
| Deed Sale | Oct 9, 2020 · Amount on Record |
| Deed Document Number | 202048703 |
| Prior Transfer Date | Oct 5, 2020 |
| Prior Transfer Doc | 0000048703 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MARIN CA |
| Property Address | 25 SIDNEY ST, MILL VALLEY, CA 94941-1353 |
| Transaction Type | Mortgage |
| Record Updated | Aug 3, 2023 |
| Title Company | SERVICELINK |
| Name | Verified Name |
|---|---|
| Address | 25 SIDNEY ST, MILL VALLEY, CA 94941-1353 |
| Document Number | 0000003470 |
|---|---|
| Date | Feb 22, 2023 |
| Instrument | 2023-0003470 |
| Name | BANK OF AMERICA NA |
|---|---|
| Type | Bank |
| Address | CHARLOTTE, NC 28255 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 347 Months |
| Due | Jan 1, 2052 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2% |
| Type Change Date | Jan 1, 2032 |
| Change Frequency | 6 Months |
| Min Rate At Change | 2.5% |
| Max Rate At Change | 7% |
| Index | Other |
| Max Rate | 7% |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Oct 9, 2020 |
| Property Address | 25 SIDNEY ST, MILL VALLEY, CA 94941-1353 |
| Document Number | 0000048703 |
| Instrument Date | Oct 5, 2020 |
| Instrument | 48703 |
| Transaction Type | Transfer |
| Record Updated | Oct 28, 2020 |
| Title Company | FIRST AMERICAN TITLE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $2,008.00 |
| Amount Accuracy | Full Value |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 25 SIDNEY ST MILL VALLEY CA 949411353, MILL VALLEY, CA 94941-1353 |
| Document Number | 48704 |
|---|---|
| Date | Oct 9, 2020 |
| Instrument | 48704 |
| Name | CAHILL G K & S K KING TR (LT) |
|---|---|
| Address | 30 MAGDALENA CT, MILL VALLEY, CA 94941-1223 |
| 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 | $762,970 (+2%) Land $97,030 Building $665,940 | |
| 2025 | $13,301.00 (+3.87%) Homeowner's exemption | $748,012 (+4.04%) Land $95,128 Building $652,884 |
| 2023 | $12,805.00 (+12.85%) Homeowner's exemption | $718,969 Land $91,434 Building $627,535 |
| 2022 | $11,347.00 |
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| 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 | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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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