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Single Family ResidenceResidential
$944,017$522 / 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 95How 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

901 WEST ST

PETALUMA, CA 94952
3
Beds
2
Baths
1,808 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.
0.19 ac
Lot SizeThe size of the land the home sits on, from county records.
1969
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
3
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$944K
$895K low$993K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,991 (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.$346,246 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$97,604
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$248,642
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$339,458

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.23
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
79
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
36
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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
CountySONOMA
Lot (acres)The size of the land the home sits on, from county records.0.18
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Wood Shingle
HeatingThe type of heating system in the home.None
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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.

M
Petaluma Junior High SchoolC-
Middle · Grades 7–8 · 0.5 mi
H
Petaluma High SchoolA-
High · Grades 9–12 · 0.9 mi
E
McKinley Elementary SchoolC-
Elementary · Grades KG–6 · 1.2 mi

District: Petaluma City Elementary School District

Neighborhood · ZIP 94952These 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.92
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 100.359

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.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.35,634
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.160 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$113,828
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$154,802
Average tempThe average temperature here across a full year.57°F
Annual precipHow much rain and melted snow falls here in a typical year.39 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

901 West 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.

  • Worth more than 70% of homes in Sonoma County
  • Costs less per square foot than 75% of homes in Petaluma 94952
  • Older than 66% of homes in Sonoma County

What homes are worth in Petaluma 94952

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

This home
$531K$2.4M

This home is worth more than 41% of homes in Petaluma 94952.

How it measures up in Petaluma 94952

The dot is this home. The mark in the middle is the typical home in Petaluma 94952.

Estimated value$944,017
CheaperTypical $1,017,425Pricier

Pricier than 41% of homes nearby

Price per ft²$522
CheaperTypical $597Pricier

Pricier than 25% of homes nearby

Living area1,808 ft²
SmallerTypical 1,691 ft²Bigger

Bigger than 56% of homes nearby

Lot size0.19 ac
SmallerTypical 0.18 acBigger

Bigger than 52% of homes nearby

Year built1969
OlderTypical 1964Newer

Newer than 57% of homes nearby

How 901 West St ranks against every home in each area.
MeasureThis homeOakhill BrewsterPetaluma 94952Sonoma County
Estimated valuepricier than$944,01749% of homes41% of homes70% of homes
Price per ft²pricier than$52240% of homes25% of homes61% of homes
Living areabigger than1,808 ft²59% of homes56% of homes63% of homes
Lot sizebigger than0.19 ac62% of homes52% of homes57% of homes
Year builtnewer than196960% of homes57% of homes34% of homes

About 901 West St

How much is 901 West St, Petaluma, CA worth?

The TopHap Estimate for 901 West St, Petaluma, CA is $944,017 as of Sep 24, 2026. The likely range is $894,818 to $993,216. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 901 West St, Petaluma, CA last sell?

901 West St, Petaluma, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 901 West St, Petaluma, CA?

901 West St, Petaluma, CA has 3 bedrooms, 2 bathrooms, 1,808 square feet of living space and a 0.18-acre lot.

When was 901 West St, Petaluma, CA built?

901 West St, Petaluma, CA was built in 1969, making it 57 years old. The building has 2 stories.

What schools serve 901 West St, Petaluma, CA?

901 West St, Petaluma, CA is assigned to Petaluma Junior High School (middle), rated C-; Petaluma High School (high), rated A-; McKinley Elementary School (elementary), rated C-. All sit in Petaluma City Elementary School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 901 West St, Petaluma, CA compare to other homes in Petaluma 94952?

Among the 10,076 homes in Petaluma 94952, it is worth more than 41% of them ($944,017 against a typical $1,017,425), its price per square foot is higher than 25% of them ($522 against a typical $597), it is bigger than 56% of them (1,808 ft² against a typical 1,691 ft²), its lot is bigger than 52% of them (0.19 ac against a typical 0.18 ac) and it is newer than 57% of them (1969 against a typical 1964). Measured against all of Sonoma County, it is worth more than 70% 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 901 West St, Petaluma, CA?

The 2025 property tax bill for 901 West St, Petaluma, CA was $3,991. The county assessed it at $346,246.

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