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Single Family ResidenceResidential
$1,785,083$1,005 / 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 91How 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 $8,500,000 on Sep 20, 2019

4 SIMONS WAY

MILL VALLEY, CA 94941
2
Beds
3.5
Baths
1,776 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.
2,488 ft²
Lot SizeThe size of the land the home sits on, from county records.
2021
Year BuiltThe year the home was originally built, according to county records.
2
ParkingThe number of parking spaces on the property, including the garage.
Pre-foreclosure (NTS)A foreclosure notice on this home is currently active. Many are worked out before any auction happens.
Auction scheduled for May 28, 2026.

Valuation

$1.8M
$1.6M low$1.9M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$8,500,000 · Sep 20, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,402 (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.$698,707 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$618,707
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$80,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$688,537

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.159 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyMARIN
Lot (acres)The size of the land the home sits on, from county records.0.06
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 · 485 ft²

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.

Foreclosure Filings(3)

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

H
Tamalpais High SchoolA+
High · Grades 9–12 · 0.2 mi
M
Mill Valley Middle SchoolA
Middle · Grades 6–8 · 0.3 mi
E
Park Elementary SchoolA+
Elementary · Grades KG–5 · 0.7 mi

District: Mill Valley Elementary School District

Neighborhood · ZIP 94941These 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.91
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.84
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.439

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.37%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.3%
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.30,767
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,462 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$194,124
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$248,795
Average tempThe average temperature here across a full year.57°F
Annual precipHow much rain and melted snow falls here in a typical year.42 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

4 Simons Way 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 68% of homes in Homestead Valley
  • Costs less per square foot than 77% of homes in Homestead Valley
  • Has a smaller lot than 92% of homes in Mill Valley 94941
  • Among the newest homes in Homestead Valley

What homes are worth in Mill Valley 94941

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

This home
$758K$5.6M

This home is worth more than 38% of homes in Mill Valley 94941.

How it measures up in Mill Valley 94941

The dot is this home. The mark in the middle is the typical home in Mill Valley 94941.

Estimated value$1,785,083
CheaperTypical $2,056,447Pricier

Pricier than 38% of homes nearby

Price per ft²$1005
CheaperTypical $1048Pricier

Pricier than 43% of homes nearby

Living area1,776 ft²
SmallerTypical 1,965 ft²Bigger

Bigger than 40% of homes nearby

Lot size2,488 ft²
SmallerTypical 0.19 acBigger

Bigger than 8% of homes nearby

Year built2021
OlderTypical 1959Newer

Newer than almost all homes nearby

How 4 Simons Way ranks against every home in each area.
MeasureThis homeHomestead ValleyMill Valley 94941Marin County
Estimated valuepricier than$1,785,08332% of homes38% of homes66% of homes
Price per ft²pricier than$100523% of homes43% of homes74% of homes
Living areabigger than1,776 ft²43% of homes40% of homes47% of homes
Lot sizebigger than2,488 ft²9% of homes8% of homes13% of homes
Year builtnewer than2021almost all homesalmost all homesalmost all homes

About 4 Simons Way

How much is 4 Simons Way, Mill Valley, CA worth?

The TopHap Estimate for 4 Simons Way, Mill Valley, CA is $1,785,083 as of Sep 24, 2026. The likely range is $1,629,431 to $1,940,735. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4 Simons Way, Mill Valley, CA last sell?

4 Simons Way, Mill Valley, CA last sold on Sep 20, 2019 for $8,500,000, according to the county's recorded deed.

How big is 4 Simons Way, Mill Valley, CA?

4 Simons Way, Mill Valley, CA has 2 bedrooms, 3.5 bathrooms, 1,776 square feet of living space and a 0.06-acre lot.

When was 4 Simons Way, Mill Valley, CA built?

4 Simons Way, Mill Valley, CA was built in 2021, making it 5 years old.

What schools serve 4 Simons Way, Mill Valley, CA?

4 Simons Way, Mill Valley, CA is assigned to Tamalpais High School (high), rated A+; Mill Valley Middle School (middle), rated A; Park Elementary School (elementary), rated A+. All sit in Mill Valley Elementary School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4 Simons Way, Mill Valley, CA compare to other homes in Mill Valley 94941?

Among the 10,554 homes in Mill Valley 94941, it is worth more than 38% of them ($1,785,083 against a typical $2,056,447), its price per square foot is higher than 43% of them ($1005 against a typical $1048), it is bigger than 40% of them (1,776 ft² against a typical 1,965 ft²), its lot is bigger than 8% of them (2,488 ft² against a typical 0.19 ac) and it is newer than almost all of them (2021 against a typical 1959). Measured against all of Marin County, it is worth more than 66% 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 4 Simons Way, Mill Valley, CA?

The 2025 property tax bill for 4 Simons Way, Mill Valley, CA was $11,402. The county assessed it at $698,707.

More homes on Simons Way

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