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Multi-Family Dwellings (Generic, Any Combination)Residential
Last sold for $4,192,500 on Jan 3, 2022

401 ASH ST

MILL VALLEY, CA 94941
0
Baths
6,476 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.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
1958
Year BuiltThe year the home was originally built, according to county records.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$4,192,500 · Jan 3, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$82,007 (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.$4,537,714 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,687,275
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$2,850,439
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$4,448,834

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.46
43
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
66
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
25
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
60
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
36
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.10 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.0.2 percent flood zone

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Multi-Family Dwellings (Generic, Any Combination)
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.1970
Lot (acres)The size of the land the home sits on, from county records.0.17
PoolWhether the property has a pool, and what kind, such as in-ground.No

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
Tamalpais Valley Elementary SchoolA+
Elementary · Grades KG–5 · 0.6 mi
H
Tamalpais High SchoolA+
High · Grades 9–12 · 0.9 mi
M
Mill Valley Middle SchoolA
Middle · Grades 6–8 · 1.3 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%

Owner Tools

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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

401 Ash St 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 largest 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.

Living area6,476 ft²
SmallerTypical 1,965 ft²Bigger

Bigger than almost all homes nearby

Lot size0.16 ac
SmallerTypical 0.19 acBigger

Bigger than 39% of homes nearby

Year built1958
OlderTypical 1959Newer

Newer than 49% of homes nearby

How 401 Ash St ranks against every home in each area.
MeasureThis homeMill Valley 94941Marin County
Living areabigger than6,476 ft²almost all homesalmost all homes
Lot sizebigger than0.16 ac39% of homes39% of homes
Year builtnewer than195849% of homes40% of homes

About 401 Ash St

When did 401 Ash St, Mill Valley, CA last sell?

401 Ash St, Mill Valley, CA last sold on Jan 3, 2022 for $4,192,500, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 401 Ash St, Mill Valley, CA?

401 Ash St, Mill Valley, CA has 6,476 square feet of living space and a 0.17-acre lot.

When was 401 Ash St, Mill Valley, CA built?

401 Ash St, Mill Valley, CA was built in 1958, making it 68 years old.

What schools serve 401 Ash St, Mill Valley, CA?

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

How does 401 Ash St, Mill Valley, CA compare to other homes in Mill Valley 94941?

Among the 10,554 homes in Mill Valley 94941, it is bigger than almost all of them (6,476 ft² against a typical 1,965 ft²), its lot is bigger than 39% of them (0.16 ac against a typical 0.19 ac) and it is newer than 49% of them (1958 against a typical 1959). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 401 Ash St, Mill Valley, CA?

The 2025 property tax bill for 401 Ash St, Mill Valley, CA was $82,007. The county assessed it at $4,537,714.

More homes on Ash St

Closest homes

More homes in Mill Valley 94941

Assigned schools

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