Marin County property record for 99 Hillside Ave, Mill Valley, CA 94941
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.5 ba · 3,292 sqft · built 1930 |
| Lot Size | 0.092 acres (4,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $3,810,000 (Nov 2023) |
| Tax Bill | $47,721 (2025) |
| Deeds & Mortgages | Sep 2025 Sale Sep 2025 Transfer + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 029-103-15 |
| Primary APN | 029-103-15 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Building Area | 3,292 sqft Living Area |
| Basement Area | 755 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1930 |
|---|---|
| Effective Year Built | Effective 1970 |
| Architectural Style | Contemporary |
| Lot Area | 4,000 sqft (0.092 acres) |
| Deck Area | 276 sqft |
| Patio Area | 900 sqft |
| Heating System | Central |
|---|
| Street Address | 99 HILLSIDE AVE |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-1180 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 26 |
| Legal Subdivision | GARDNER |
| Legal Lot Number | 26 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 5 |
| Census Block | 5019 |
| Census Tract | 126100 |
Source: Marin County records · APN 029-103-15
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 Individual Names on File |
|---|---|
| Mailing Address | 99 HILLSIDE AVE, MILL VALLEY, CA 94941-1180 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Date | Document |
|---|---|
| Sep 23, 2025 | Grant Deed, Transfer |
| Sep 26, 2025 | Intrafamily Transfer, Transfer |
| Nov 21, 2023 | Grant Deed, Transfer · Conventional Mortgage CITIBANK NA |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Nov 21, 2023 · Amount on Record |
| Deed Sale | Nov 21, 2023 · Amount on Record |
| Prior Sale | Dec 23, 2014 · Amount on Record |
| Deed Document Number | 202331218 |
| Last Transfer Date | Sep 14, 2025 |
| Transfer Doc | 0000024927 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Sep 23, 2025 |
| Property Address | 99 HILLSIDE AVE, MILL VALLEY, CA 94941-1180 |
| Document Number | 0000024463 |
| Instrument Date | Sep 15, 2025 |
| Instrument | 2025-0024463 |
| Transaction Type | Transfer |
| Record Updated | Oct 08, 2025 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 99 HILLSIDE AVE, MILL VALLEY, CA 94941-1180 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Sep 26, 2025 |
| Property Address | 99 HILLSIDE AVE, MILL VALLEY, CA 94941-1180 |
| Document Number | 0000024927 |
| Instrument Date | Sep 14, 2025 |
| Instrument | 2025-0024927 |
| Transaction Type | Transfer |
| Record Updated | Oct 08, 2025 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 99 HILLSIDE AVE, MILL VALLEY, CA 94941-1180 |
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 99 HILLSIDE AVE, MILL VALLEY, CA 94941-1180 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Nov 21, 2023 |
| Property Address | 99 HILLSIDE AVE, MILL VALLEY, CA 94941-1180 |
| Document Number | 0000031218 |
| Instrument Date | Nov 17, 2023 |
| Instrument | 2023-0031218 |
| Transaction Type | Transfer |
| Record Updated | Dec 07, 2023 |
| Title Company | FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $4,191.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 99 HILLSIDE AVE, MILL VALLEY, CA 94941-1180 |
| Investor | Possibly a Property Investor |
| Document Number | 0000031219 |
|---|---|
| Date | Nov 21, 2023 |
| Instrument | 2023-0031219 |
| Name | CITIBANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Dec 01, 2053 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 6.37% |
| Type Change Date | Dec 01, 2033 |
| Change Frequency | 6 Months |
| Min Rate At Change | 2.75% |
| Max Rate At Change | 11.3% |
| Max Rate | 11.3% |
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 | $3,900,000 (+0.36%) Land $2,350,000 Building $1,550,000 | |
| 2025 | $47,721.00 (+94.8%) | $3,886,200 (+113.33%) Land $2,346,000 Building $1,540,200 |
| 2023 | $24,498.00 (+20.22%) | $1,821,694 Land $866,362 Building $955,332 |
| 2022 | $20,377.00 |
Source: FEMA National Flood Hazard Layer as of October 18, 2023 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · 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 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 as of December 31, 2025 · 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.
Based on FCC filings for 595 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of 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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