Marin County property record for 18 Upper Ames Ave, Ross, CA 94957 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 2 Beds |
| Bathrooms | 3.5 Baths |
| Year Built | Built 1973 |
| Square Footage | 3,060 sqft Living Area |
| Lot Size | 21,700 sqft (0.498 acres) |
| Garage | 440 sqft |
| Occupancy | Owner Occupied |
| Tax Bill | $12,050.00 (2025) |
| Primary APN | 073-181-22 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Partial Baths | 1 Partial Baths |
| Building Area | 3,060 sqft Living Area |
| Fireplace | Fireplace |
| Fireplaces | 1 Fireplaces |
| Year Built | Built 1949 |
|---|---|
| Effective Year Built | Effective 1973 |
| Architectural Style | Contemporary Style |
| Lot Area | 21,700 sqft (0.498 acres) |
| Parking Spaces | 2 Parking Spaces |
| Garage Area | 440 sqft Garage |
| Pool Area | 640 sqft Pool |
| Heating System | Central Heating |
|---|
| Street Address | 18 UPPER AMES AVE |
|---|---|
| City | ROSS |
| State | CA |
| Zip | 94957-9688 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | MAP C2 586 |
| Legal Subdivision | AMES AVE |
| Legal Lot Number | 6 |
| Jurisdiction | MARIN CA |
| Minor Civil Division | ROSS VALLEY |
| Census Blockgroup | 2 |
| Census Block | 2005 |
| Census Tract | 118100 |
Source: Marin County records · APN 073-181-22
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 | PO BOX 177, ROSS, CA 94957-0177 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Transfer Date | Apr 16, 2013 |
| Transfer Doc | 0000027910 |
| Record Refreshed | 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 | Ross Town |
| Elementary School District | Ross 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 | $789,401 (+2%) Land $267,989 Building $521,412 | |
| 2025 | $12,050.00 (+4.6%) Homeowner's exemption | $773,925 (+4.04%) Land $262,735 Building $511,190 |
| 2023 | $11,520.00 (+2.54%) Homeowner's exemption | $743,875 Land $252,533 Building $491,342 |
| 2022 | $11,235.00 |
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 | Direct burnable vegetation at the parcel |
Values are read at the parcel center point; lenders make the official flood determination.
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