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Single Family ResidenceResidential
$9,999,999$1,426 / 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 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $6,300,000 on Oct 3, 2016

9 WILLOW HILL RD

ROSS, CA 94957
5
Beds
6.5
Baths
7,013 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.
2.79 ac
Lot SizeThe size of the land the home sits on, from county records.
1904
Year BuiltThe year the home was originally built, according to county records.

Valuation

$10M
$9.7M 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.$6,300,000 · Oct 3, 2016

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$90,830 (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.$7,681,761 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$4,143,195
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$3,538,566
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$7,531,146

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.2000
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 · 1,029 ft²Patio · 2,119 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 · 0.3 mi
H
Redwood High SchoolA+
High · Grades 9–12 · 2.4 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

9 Willow Hill 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 more per square foot than 93% of homes in Marin County
  • Among the largest homes in Marin County
  • Among the largest lots in Marin County
  • Older than 98% of homes in Marin County

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 $4,022,648Pricier

Pricier than almost all homes nearby

Price per ft²$1426
CheaperTypical $1445Pricier

Pricier than 48% of homes nearby

Living area7,013 ft²
SmallerTypical 2,773 ft²Bigger

Bigger than 95% of homes nearby

Lot size2.79 ac
SmallerTypical 0.39 acBigger

Bigger than 96% of homes nearby

Year built1904
OlderTypical 1937Newer

Newer than 5% of homes nearby

How 9 Willow Hill 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$142648% of homes93% of homes
Living areabigger than7,013 ft²95% of homesalmost all homes
Lot sizebigger than2.79 ac96% of homesalmost all homes
Year builtnewer than19045% of homes2% of homes

About 9 Willow Hill Rd

How much is 9 Willow Hill Rd, Ross, CA worth?

The TopHap Estimate for 9 Willow Hill Rd, Ross, CA is $9,999,999 as of Aug 30, 2026. The likely range is $9,733,769 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 9 Willow Hill Rd, Ross, CA last sell?

9 Willow Hill Rd, Ross, CA last sold on Oct 3, 2016 for $6,300,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 9 Willow Hill Rd, Ross, CA?

9 Willow Hill Rd, Ross, CA has 5 bedrooms, 6.5 bathrooms and 7,013 square feet of living space.

When was 9 Willow Hill Rd, Ross, CA built?

9 Willow Hill Rd, Ross, CA was built in 1904, making it 122 years old. It is a contemporary home.

What schools serve 9 Willow Hill Rd, Ross, CA?

9 Willow Hill 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 9 Willow Hill 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 $4,022,648), its price per square foot is higher than 48% of them ($1426 against a typical $1445), it is bigger than 95% of them (7,013 ft² against a typical 2,773 ft²), its lot is bigger than 96% of them (2.79 ac against a typical 0.39 ac) and it is newer than 5% of them (1904 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 9 Willow Hill Rd, Ross, CA?

The 2025 property tax bill for 9 Willow Hill Rd, Ross, CA was $90,830. The county assessed it at $7,681,761.

More homes on Willow Hill Rd

Closest homes

More homes in Ross 94957

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