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Single Family ResidenceResidential
$9,999,999$864 / 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 93How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $14,000,000 on Mar 23, 2023

21 CANYON RD

ROSS, CA 94957
8
Beds
8
Baths
11,575 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.
14.06 ac
Lot SizeThe size of the land the home sits on, from county records.
1969
Year BuiltThe year the home was originally built, according to county records.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$10M
$10M low$10M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$14,000,000 · Mar 23, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$170,525 (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.$14,856,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$9,550,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$5,306,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$14,565,600

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.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.1971
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.Yes
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 1,928 ft²Patio · 1,928 ft²

Transaction History(4)

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.

E
Ross SchoolA+
Elementary · Grades KG–8 · 0.6 mi
H
Redwood High SchoolA+
High · Grades 9–12 · 2.6 mi

District: Tamalpais Union High School District

Neighborhood · ZIP 94957These 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.58
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.83
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.370

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.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.42%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.2,366
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,440 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$259,576
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$395,275
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.44 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

21 Canyon Rd 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.

  • Among the most valuable homes in Ross 94957
  • Costs less per square foot than 98% of homes in Ross 94957
  • Among the largest homes in Ross 94957
  • Among the largest lots in Ross 94957
  • Newer than 83% of homes in Ross 94957

What homes are worth in Ross 94957

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

This home
$1.5M$10M

This home is worth more than almost all homes in Ross 94957.

How it measures up in Ross 94957

The dot is this home. The mark in the middle is the typical home in Ross 94957.

Estimated value$9,999,999
CheaperTypical $3,986,742Pricier

Pricier than almost all homes nearby

Price per ft²$864
CheaperTypical $1468Pricier

Pricier than 2% of homes nearby

Living area11,575 ft²
SmallerTypical 2,762 ft²Bigger

Bigger than almost all homes nearby

Lot size14.06 ac
SmallerTypical 0.39 acBigger

Bigger than almost all homes nearby

Year built1969
OlderTypical 1937Newer

Newer than 83% of homes nearby

How 21 Canyon Rd ranks against every home in each area.
MeasureThis homeRoss 94957Marin County
Estimated valuepricier than$9,999,999almost all homesalmost all homes
Price per ft²pricier than$8642% of homes60% of homes
Living areabigger than11,575 ft²almost all homesalmost all homes
Lot sizebigger than14.06 acalmost all homesalmost all homes
Year builtnewer than196983% of homes62% of homes

About 21 Canyon Rd

How much is 21 Canyon Rd, Ross, CA worth?

The TopHap Estimate for 21 Canyon Rd, Ross, CA is $9,999,999 as of Sep 24, 2026. The likely range is $9,999,999 to $9,999,999. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Canyon Rd, Ross, CA last sell?

21 Canyon Rd, Ross, CA last sold on Mar 23, 2023 for $14,000,000, according to the county's recorded deed.

How big is 21 Canyon Rd, Ross, CA?

21 Canyon Rd, Ross, CA has 8 bedrooms, 8 bathrooms and 11,575 square feet of living space.

When was 21 Canyon Rd, Ross, CA built?

21 Canyon Rd, Ross, CA was built in 1969, making it 57 years old. It is a contemporary home.

What schools serve 21 Canyon Rd, Ross, CA?

21 Canyon Rd, Ross, CA is assigned to Ross School (elementary), rated A+; Redwood 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 21 Canyon Rd, Ross, CA compare to other homes in Ross 94957?

Among the 817 homes in Ross 94957, it is worth more than almost all of them ($9,999,999 against a typical $3,986,742), its price per square foot is higher than 2% of them ($864 against a typical $1468), it is bigger than almost all of them (11,575 ft² against a typical 2,762 ft²), its lot is bigger than almost all of them (14.06 ac against a typical 0.39 ac) and it is newer than 83% of them (1969 against a typical 1937). Measured against all of Marin County, it is worth more than almost all 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 21 Canyon Rd, Ross, CA?

The 2025 property tax bill for 21 Canyon Rd, Ross, CA was $170,525. The county assessed it at $14,856,800.

More homes on Canyon Rd

Closest homes

More homes in Ross 94957

Assigned schools

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See this home in context

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