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Single Family ResidenceResidential
$802,601$579 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 87How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026

12 ACE CT

FAIRFAX, CA 94930
3
Beds
2.5
Baths
1,386 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.
3,000 ft²
Lot SizeThe size of the land the home sits on, from county records.
1974
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$803K
$699K low$906K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,187 (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.$406,562 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$119,577
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$286,985
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$398,590

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Colonial
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.1975
Lot (acres)The size of the land the home sits on, from county records.0.07
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
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

Transaction History(2)

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.

M
White Hill Middle SchoolA
Middle · Grades 6–8 · 0.3 mi
E
Manor Elementary SchoolA
Elementary · Grades KG–5 · 0.4 mi
H
Archie Williams High SchoolA-
High · Grades 9–12 · 1.9 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

12 Ace Ct 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.

  • Worth less than 88% of homes in Fairfax 94930
  • Costs less per square foot than 96% of homes in Fairfax 94930
  • Smaller than 74% of homes in Marin County
  • Has a smaller lot than 97% of homes in Fairfax 94930
  • Newer than 89% of homes in Fairfax 94930

What homes are worth in Fairfax 94930

Each bar is how many homes fall in that price range. The marker is this home.

This home
$638K$2.9M

This home is worth more than 12% 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.

Estimated value$802,601
CheaperTypical $1,190,038Pricier

Pricier than 12% of homes nearby

Price per ft²$579
CheaperTypical $766Pricier

Pricier than 4% of homes nearby

Living area1,386 ft²
SmallerTypical 1,562 ft²Bigger

Bigger than 38% of homes nearby

Lot size3,000 ft²
SmallerTypical 0.17 acBigger

Bigger than 3% of homes nearby

Year built1974
OlderTypical 1954Newer

Newer than 89% of homes nearby

How 12 Ace Ct ranks against every home in each area.
MeasureThis homeFairfax 94930Marin County
Estimated valuepricier than$802,60112% of homes15% of homes
Price per ft²pricier than$5794% of homes21% of homes
Living areabigger than1,386 ft²38% of homes26% of homes
Lot sizebigger than3,000 ft²3% of homes14% of homes
Year builtnewer than197489% of homes72% of homes

About 12 Ace Ct

How much is 12 Ace Ct, Fairfax, CA worth?

The TopHap Estimate for 12 Ace Ct, Fairfax, CA is $802,601 as of Oct 21, 2026. The likely range is $699,091 to $906,111. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12 Ace Ct, Fairfax, CA last sell?

12 Ace Ct, Fairfax, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 12 Ace Ct, Fairfax, CA?

12 Ace Ct, Fairfax, CA has 3 bedrooms, 2.5 bathrooms, 1,386 square feet of living space and a 0.07-acre lot.

When was 12 Ace Ct, Fairfax, CA built?

12 Ace Ct, Fairfax, CA was built in 1974, making it 52 years old. It is a colonial home. The building has 2 stories.

What schools serve 12 Ace Ct, Fairfax, CA?

12 Ace Ct, Fairfax, CA is assigned to White Hill Middle School (middle), rated A; Manor Elementary School (elementary), rated A; Archie Williams High School (high), rated A-. All sit in Tamalpais Union High School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 12 Ace Ct, Fairfax, CA compare to other homes in Fairfax 94930?

Among the 3,028 homes in Fairfax 94930, it is worth more than 12% of them ($802,601 against a typical $1,190,038), its price per square foot is higher than 4% of them ($579 against a typical $766), it is bigger than 38% of them (1,386 ft² against a typical 1,562 ft²), its lot is bigger than 3% of them (3,000 ft² against a typical 0.17 ac) and it is newer than 89% of them (1974 against a typical 1954). Measured against all of Marin County, it is worth more than 15% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 12 Ace Ct, Fairfax, CA?

The 2025 property tax bill for 12 Ace Ct, Fairfax, CA was $6,187. The county assessed it at $406,562.

More homes on Ace Ct

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