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Single Family ResidenceResidential
$3,861,632$965 / 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 89How 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 $4,250,000 on Mar 10, 2017

40 ALEXANDER AVE

SAUSALITO, CA 94965
4
Beds
4.5
Baths
4,000 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.
0.13 ac
Lot SizeThe size of the land the home sits on, from county records.
1981
Year BuiltThe year the home was originally built, according to county records.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$3.9M
$3.4M low$4.3M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$4,250,000 · Mar 10, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$59,747 (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.$5,031,021 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$2,663,481
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$2,367,540
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$4,932,378

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.197 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.1 percent coastal 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.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.2006
Lot (acres)The size of the land the home sits on, from county records.0.13
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 · 1,492 ft²Patio · 1,492 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
Dr. Martin Luther King Jr. AcademyB
Elementary · Grades KG–8 · 1.7 mi
H
Tamalpais High SchoolA
High · Grades 9–12 · 4.2 mi

District: Sausalito Elementary School District

Neighborhood · ZIP 94965These 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.149
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.458

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.91%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.11,048
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.525 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$138,294
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$185,477
Average tempThe average temperature here across a full year.57°F
Annual precipHow much rain and melted snow falls here in a typical year.47 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

40 Alexander Ave 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 more than 95% of homes in Old Town-Hurricane Gulch
  • Costs less per square foot than 78% of homes in Old Town-Hurricane Gulch
  • Bigger than 96% of homes in Old Town-Hurricane Gulch
  • Has a smaller lot than 73% of homes in Marin County
  • Newer than 87% of homes in Old Town-Hurricane Gulch

What homes are worth in Sausalito 94965

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

This home
$509K$5.7M

This home is worth more than 92% of homes in Sausalito 94965.

How it measures up in Sausalito 94965

The dot is this home. The mark in the middle is the typical home in Sausalito 94965.

Estimated value$3,861,632
CheaperTypical $1,431,176Pricier

Pricier than 92% of homes nearby

Price per ft²$965
CheaperTypical $956Pricier

Pricier than 51% of homes nearby

Living area4,000 ft²
SmallerTypical 1,651 ft²Bigger

Bigger than 96% of homes nearby

Lot size0.13 ac
SmallerTypical 4,225 ft²Bigger

Bigger than 61% of homes nearby

Year built1981
OlderTypical 1966Newer

Newer than 85% of homes nearby

How 40 Alexander Ave ranks against every home in each area.
MeasureThis homeOld Town-Hurricane GulchSausalito 94965Marin County
Estimated valuepricier than$3,861,63295% of homes92% of homes94% of homes
Price per ft²pricier than$96522% of homes51% of homes70% of homes
Living areabigger than4,000 ft²96% of homes96% of homes95% of homes
Lot sizebigger than0.13 ac70% of homes61% of homes27% of homes
Year builtnewer than198187% of homes85% of homes80% of homes

About 40 Alexander Ave

How much is 40 Alexander Ave, Sausalito, CA worth?

The TopHap Estimate for 40 Alexander Ave, Sausalito, CA is $3,861,632 as of Sep 24, 2026. The likely range is $3,427,260 to $4,296,005. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 40 Alexander Ave, Sausalito, CA last sell?

40 Alexander Ave, Sausalito, CA last sold on Mar 10, 2017 for $4,250,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 40 Alexander Ave, Sausalito, CA?

40 Alexander Ave, Sausalito, CA has 4 bedrooms, 4.5 bathrooms, 4,000 square feet of living space and a 0.13-acre lot.

When was 40 Alexander Ave, Sausalito, CA built?

40 Alexander Ave, Sausalito, CA was built in 1981, making it 45 years old. It is a contemporary home.

What schools serve 40 Alexander Ave, Sausalito, CA?

40 Alexander Ave, Sausalito, CA is assigned to Dr. Martin Luther King Jr. Academy (elementary), rated B; Tamalpais High School (high), rated A. All sit in Sausalito Elementary School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 40 Alexander Ave, Sausalito, CA compare to other homes in Sausalito 94965?

Among the 3,820 homes in Sausalito 94965, it is worth more than 92% of them ($3,861,632 against a typical $1,431,176), its price per square foot is higher than 51% of them ($965 against a typical $956), it is bigger than 96% of them (4,000 ft² against a typical 1,651 ft²), its lot is bigger than 61% of them (0.13 ac against a typical 4,225 ft²) and it is newer than 85% of them (1981 against a typical 1966). Measured against all of Marin County, it is worth more than 94% 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 40 Alexander Ave, Sausalito, CA?

The 2025 property tax bill for 40 Alexander Ave, Sausalito, CA was $59,747. The county assessed it at $5,031,021.

More homes on Alexander Ave

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Assigned schools

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