Marin County property record for 421 Marin Ave, Mill Valley, CA 94941 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 4 Beds |
| Bathrooms | 2 Baths |
| Year Built | Built 1970 |
| Square Footage | 2,440 sqft Living Area |
| Lot Size | 16,617 sqft (0.382 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $475,000 (1997) |
| Tax Bill | $14,910.00 (2025) |
| Primary APN | 049-143-04 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Building Area | 2,440 sqft Living Area |
| Stories | 2 Stories |
| Fireplace | Fireplace |
| Fireplaces | 1 Fireplaces |
| Year Built | Built 1927 |
|---|---|
| Effective Year Built | Effective 1970 |
| Architectural Style | Contemporary Style |
| Exterior Material | Wood Siding Exterior |
| Roof Material | Roll Tar & Gravel Roof |
| Lot Area | 16,617 sqft (0.382 acres) |
| Deck Area | 818 sqft Deck |
| Patio Area | 818 sqft Patio |
| Heating System | Central Heating |
|---|---|
| Sewage | Municipal Sewage |
| Water Source | Commercial Water Source |
| Street Address | 421 MARIN AVE |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-4000 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | MAP E7 606 |
| Legal Subdivision | TAMALPAIS VLY MANN CO NO1 |
| Jurisdiction | MARIN CA |
| Minor Civil Division | SOUTHEAST MARIN |
| Census Blockgroup | 3 |
| Census Block | 3008 |
| Census Tract | 128100 |
Source: Marin County records · APN 049-143-04
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 | 421 MARIN AVE, MILL VALLEY, CA 94941-4000 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is a Company |
| Vesting | Owner is a Trust, Trust |
| Date | Document |
|---|---|
| Feb 02, 2018 | Quit Claim Deed, Transfer FIDELITY NATIONAL TITLE |
| Feb 02, 2018 | Quit Claim Deed, Transfer · Conventional Mortgage STAR ONE CU |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jul 18, 1997 · Amount on Record |
| Deed Sale | Jul 18, 1997 · Amount on Record |
| Deed Doc Number | 199738244 |
| Last Transfer Date | Jan 26, 2018 |
| Transfer Doc | 0000003333 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Feb 02, 2018 |
| Property Address | 421 MARIN AVE, MILL VALLEY, CA 94941-4000 |
| Document Number | 0000003333 |
| Instrument Date | Jan 25, 2018 |
| Instrument | 3333 |
| Transaction Type | Transfer |
| Record Updated | Feb 21, 2018 |
| Title Company | FIDELITY NATIONAL TITLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 421 MARIN AVE MILL VALLEY CA 949414000, MILL VALLEY, CA 94941-4000 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Feb 02, 2018 |
| Property Address | 421 MARIN AVE, MILL VALLEY, CA 94941-4000 |
| Document Number | 0000003331 |
| Instrument Date | Jan 25, 2018 |
| Instrument | 3331 |
| Transaction Type | Transfer |
| Record Updated | Aug 31, 2018 |
| Title Company | FIDELITY NATIONAL TITLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenant/Joint Tenant w/ Right Of Survivorship |
| Address | 421 MARIN AVE MILL VALLEY CA 949414000, MILL VALLEY, CA 94941-4000 |
| Document Number | 3332 |
|---|---|
| Date | Feb 02, 2018 |
| Instrument | 3332 |
| Name | STAR ONE CU |
|---|---|
| Type | Credit Union |
| Address | SUNNYVALE, CA 94088 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 120 Months |
| Due | Feb 01, 2028 |
Source: Marin County records · Assessment roll updated July 13, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Marin County |
| Elementary School District | Mill Valley Elementary School District (KG - 08) |
| Secondary School District | Tamalpais Union High School District (09 - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $838,930 (+2%) Land $408,938 Building $429,992 | |
| 2025 | $14,910.00 (+6.68%) Homeowner's exemption | $822,482 (+4.04%) Land $400,920 Building $421,562 |
| 2023 | $13,977.00 (-3.14%) Homeowner's exemption | $790,550 Land $385,354 Building $405,196 |
| 2022 | $14,430.00 |
Source: FEMA National Flood Hazard Layer, Marin County (06041C), updated October 18, 2023 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Special Flood Hazard Area | No |
| Wildfire Risk | Low above 32% of the US · above 19% of California |
|---|---|
| Wildfire Likelihood | About 1 in 2,941 per year |
| Exposure | Indirect within ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
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