Marin County property record for 89 Bolsa Ave, Mill Valley, CA 94941 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,256 sqft · built 1954 |
| Lot Size | 0.191 acres (8,300 sqft) |
| Owner | 2 Company Names on File |
| Tax Bill | $14,138 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 029-073-07 |
| Primary APN | 029-073-07 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Building Area | 2,256 sqft Living Area |
| Basement Area | 727 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1954 |
|---|---|
| Effective Year Built | Effective 1998 |
| Architectural Style | Contemporary |
| Lot Area | 8,300 sqft (0.191 acres) |
| Deck Area | 200 sqft |
| Patio Area | 200 sqft |
| Heating System | Central |
|---|
| Street Address | 89 BOLSA AVE |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-1134 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | MAP 3 PG 51 LOT 47 |
| Legal Subdivision | BOLSA VLY MAP 01 |
| Legal Tract | 1 |
| Legal Lot Number | 47 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 4 |
| Census Block | 4001 |
| Census Tract | 126100 |
Source: Marin County records · APN 029-073-07
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 | 89 BOLSA AVE, MILL VALLEY, CA 94941-1134 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Borrower in Default |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Transfer Date | Feb 17, 2012 |
| Transfer Doc | 0000010522 |
| Record Updated | Sep 20, 2026 |
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 is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $902,589 (+2%) Land $404,723 Building $497,866 | |
| 2025 | $14,138.00 (+8.25%) Homeowner's exemption | $884,891 (+4.04%) Land $396,787 Building $488,104 |
| 2023 | $13,060.00 (+0.65%) Homeowner's exemption | $850,535 Land $381,381 Building $469,154 |
| 2022 | $12,976.00 |
Source: FEMA National Flood Hazard Layer, Marin County (06041C), updated October 18, 2023 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060411261004, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Nearby Flood Policies | 6 in force |
| Nearby Flood Claims | 5 (1982–2009) |
| Claims Outside the SFHA | 4 of 5 |
| Most Recent Claim | Oct 2009, other causes |
| Wildfire Risk | Low above 32% of the US · above 19% of California |
|---|---|
| Wildfire Likelihood | About 1 in 3,704 per year |
| Exposure | Direct burnable vegetation at the parcel |
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, availability as of December 31, 2025 · Published October 2026 · based on 301 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| AT&T | Fiber | 5,000 / 5,000 |
| Xfinity | Cable | 2,000 / 250 |
| Unwired | Fixed Wireless | 300 / 25 |
May also be available at this address: Verizon, T-Mobile USA. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G (outdoors only) and 4G LTE
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