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Duplex (2 Units, Any Combination)Residential

11 UPPER RIDGEWAY AVE

FAIRFAX, CA 94930
4
Beds
2
Baths
2,400 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
0.21 ac
Lot SizeThe size of the land the home sits on, from county records.
1971
Year BuiltThe year the home was originally built, according to county records.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,817 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$262,478 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$65,425
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$197,053
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$257,331

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Contemporary
CountyMARIN
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1973
Lot (acres)The size of the land the home sits on, from county records.0.20
HeatingThe type of heating system in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 211 ft²Patio · 421 ft²

Transaction History(1)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

H
Archie Williams High SchoolA+
High · Grades 9–12 · 0.9 mi
E
Hidden Valley Elementary SchoolA+
Elementary · Grades KG–5 · 1.1 mi
M
White Hill Middle SchoolA
Middle · Grades 6–8 · 1.4 mi

District: Tamalpais Union High School District

Neighborhood · ZIP 94930These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.121
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.82
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.415

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.39%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.8,117
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.450 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$136,561
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$156,898
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.49 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.78%

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

11 Upper Ridgeway Ave measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Bigger than 87% of homes in Fairfax 94930
  • Newer than 81% of homes in Fairfax 94930

How it measures up in Fairfax 94930

The dot is this home. The mark in the middle is the typical home in Fairfax 94930.

Living area2,400 ft²
SmallerTypical 1,568 ft²Bigger

Bigger than 87% of homes nearby

Lot size0.21 ac
SmallerTypical 0.17 acBigger

Bigger than 64% of homes nearby

Year built1971
OlderTypical 1954Newer

Newer than 81% of homes nearby

How 11 Upper Ridgeway Ave ranks against every home in each area.
MeasureThis homeFairfax 94930Marin County
Living areabigger than2,400 ft²87% of homes73% of homes
Lot sizebigger than0.21 ac64% of homes57% of homes
Year builtnewer than197181% of homes65% of homes

About 11 Upper Ridgeway Ave

When did 11 Upper Ridgeway Ave, Fairfax, CA last sell?

11 Upper Ridgeway Ave, Fairfax, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 11 Upper Ridgeway Ave, Fairfax, CA?

11 Upper Ridgeway Ave, Fairfax, CA has 4 bedrooms, 2 bathrooms, 2,400 square feet of living space and a 0.20-acre lot.

When was 11 Upper Ridgeway Ave, Fairfax, CA built?

11 Upper Ridgeway Ave, Fairfax, CA was built in 1971, making it 55 years old. It is a contemporary home.

What schools serve 11 Upper Ridgeway Ave, Fairfax, CA?

11 Upper Ridgeway Ave, Fairfax, CA is assigned to Archie Williams High School (high), rated A+; Hidden Valley Elementary School (elementary), rated A+; White Hill Middle School (middle), rated A. All sit in Tamalpais Union High School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 11 Upper Ridgeway Ave, Fairfax, CA compare to other homes in Fairfax 94930?

Among the 3,028 homes in Fairfax 94930, it is bigger than 87% of them (2,400 ft² against a typical 1,568 ft²), its lot is bigger than 64% of them (0.21 ac against a typical 0.17 ac) and it is newer than 81% of them (1971 against a typical 1954). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 11 Upper Ridgeway Ave, Fairfax, CA?

The 2025 property tax bill for 11 Upper Ridgeway Ave, Fairfax, CA was $6,817. The county assessed it at $262,478.

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