Marin County property record for 90 Porteous Ave, Fairfax, CA 94930
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,816 sqft · built 1955 |
| Lot Size | 0.129 acres (5,616 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $825,500 (Jul 2016) |
| Tax Bill | $13,709 (2025) |
| Deeds & Mortgages | Jul 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 002-081-12 |
| Primary APN | 002-081-12 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Building Area | 1,816 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 1970 |
| Architectural Style | Contemporary |
| Lot Area | 5,616 sqft (0.129 acres) |
| Garage Area | 399 sqft |
| Parking Spaces | 1 Parking Space |
| Deck Area | 221 sqft |
| Patio Area | 471 sqft |
| Heating System | Central |
|---|
| Street Address | 90 PORTEOUS AVE |
|---|---|
| City | FAIRFAX |
| State | CA |
| Zip | 94930-2035 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | MAP 4 PG 96 LOT 345 |
| Legal Subdivision | DEER PARK MAP #3 |
| Legal Lot Number | 345 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | ROSS VALLEY |
| Census Block Group | 1 |
| Census Block | 1033 |
| Census Tract | 114100 |
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 Individual Names on Record |
|---|---|
| Mailing Address | 90 PORTEOUS AVE, FAIRFAX, CA 94930-2035 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 11, 2016 · Amount on Record |
| Deed Sale | Jul 11, 2016 · Amount on Record |
| Prior Sale | May 13, 2010 · Amount on Record |
| Deed Document Number | 201630675 |
| Prior Transfer Date | Jul 19, 2001 |
| Prior Transfer Doc | 0000046794 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MARIN CA |
| Property Address | 90 PORTEOUS AVE, FAIRFAX, CA 94930-2035 |
| Document Number | 0000030949 |
| Instrument Date | Jul 10, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Aug 3, 2020 |
| Title Company | STEWART TITLE, STEWART TITLE GUARANTY CO |
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 90 PORTEOUS AVE FAIRFAX CA 949302035, FAIRFAX, CA 94930-2035 |
| Document Number | 0000030949 |
|---|---|
| Date | Jul 17, 2020 |
| Instrument | 30949 |
| Name | FRANKLIN LN CTR |
|---|---|
| Type | Funding / Finance Company |
| Address | PALM DESERT, CA 92260 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jul 16, 2050 |
Source: Marin County assessment roll, as of July 13, 2026
| Type | Name |
|---|---|
| State | California |
| County | Marin County |
| Municipality | Fairfax Town |
| Elementary School District | Ross Valley Elementary School District (KG - 08) |
| Secondary School District | Tamalpais Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $975,041 (+2%) Land $591,885 Building $383,156 | |
| 2025 | $13,709.00 (+4.58%) Homeowner's exemption | $955,924 (+4.04%) Land $580,280 Building $375,644 |
| 2023 | $13,109.00 (+1.03%) Homeowner's exemption | $918,809 Land $557,750 Building $361,059 |
| 2022 | $12,975.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 AO, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 85 policies |
| Community Rating System | Class 9 (5% premium discount) |
| Nearby Flood Policies | 85 in force |
| Nearby Flood Claims | 81 (1980–2024) |
| Claims Outside the SFHA | 18 of 81 |
| Most Recent Claim | Feb 2024 · rainfall accumulation |
| 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 | Moderate above 62% of the US · lower than 62% of California |
|---|---|
| Wildfire Likelihood | 0.2% 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 111 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
4G LTE (outdoors only), no 5G reported
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