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Duplex (2 Units, Any Combination)Residential
Last sold for $1,400,000 on Jun 29, 2007

171 PROSPECT AVE

SAUSALITO, CA 94965
4
Beds
4
Baths
2,898 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.
3,900 ft²
Lot SizeThe size of the land the home sits on, from county records.
1963
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.$1,400,000 · Jun 29, 2007

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$28,417 (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.$2,136,338 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,298,146
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$838,192
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$2,094,455

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
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.1990
Lot (acres)The size of the land the home sits on, from county records.0.09
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.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 · 548 ft²Patio · 1,096 ft²

Transaction History(5)

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 · 1.2 mi
H
Tamalpais High SchoolA+
High · Grades 9–12 · 3.6 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

171 Prospect 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.

  • Bigger than 88% of homes in Sausalito 94965
  • Has a smaller lot than 83% of homes in Marin County
  • Newer than 73% of homes in Old Town-Hurricane Gulch

How it measures up in Sausalito 94965

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

Living area2,898 ft²
SmallerTypical 1,651 ft²Bigger

Bigger than 88% of homes nearby

Lot size3,900 ft²
SmallerTypical 4,225 ft²Bigger

Bigger than 48% of homes nearby

Year built1963
OlderTypical 1966Newer

Newer than 46% of homes nearby

How 171 Prospect Ave ranks against every home in each area.
MeasureThis homeOld Town-Hurricane GulchSausalito 94965Marin County
Living areabigger than2,898 ft²85% of homes88% of homes85% of homes
Lot sizebigger than3,900 ft²46% of homes48% of homes17% of homes
Year builtnewer than196373% of homes46% of homes52% of homes

About 171 Prospect Ave

When did 171 Prospect Ave, Sausalito, CA last sell?

171 Prospect Ave, Sausalito, CA last sold on Jun 29, 2007 for $1,400,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 171 Prospect Ave, Sausalito, CA?

171 Prospect Ave, Sausalito, CA has 4 bedrooms, 4 bathrooms, 2,898 square feet of living space and a 0.09-acre lot.

When was 171 Prospect Ave, Sausalito, CA built?

171 Prospect Ave, Sausalito, CA was built in 1963, making it 63 years old. It is a duplex single home.

What schools serve 171 Prospect Ave, Sausalito, CA?

171 Prospect 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 171 Prospect Ave, Sausalito, CA compare to other homes in Sausalito 94965?

Among the 3,817 homes in Sausalito 94965, it is bigger than 88% of them (2,898 ft² against a typical 1,651 ft²), its lot is bigger than 48% of them (3,900 ft² against a typical 4,225 ft²) and it is newer than 46% of them (1963 against a typical 1966). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 171 Prospect Ave, Sausalito, CA?

The 2025 property tax bill for 171 Prospect Ave, Sausalito, CA was $28,417. The county assessed it at $2,136,338.

More homes on Prospect Ave

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More homes in Sausalito 94965

Assigned schools

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