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Single Family ResidenceResidential
$832,985$497 / 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 93How 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

550 HART LN

SEBASTOPOL, CA 95472
3
Beds
2
Baths
1,675 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.
1.08 ac
Lot SizeThe size of the land the home sits on, from county records.
1972
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$833K
$771K low$895K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,221 (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.$154,934 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$23,682
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$131,252
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$151,897

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.24
16
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
77
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
27
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.2 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
CountySONOMA
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
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
HeatingThe type of heating system in the home.None
CoolingThe type of cooling or air conditioning in the home.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(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.

H
Analy High SchoolA-
High · Grades 9–12 · 1.6 mi
E
Park Side Elementary SchoolA+
Elementary · Grades KG–4 · 2.0 mi
M
Brook Haven Middle SchoolC
Middle · Grades 5–8 · 2.4 mi

District: West Sonoma County Union High School District

Neighborhood · ZIP 95472These 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.95
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.345

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.27%
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.1.1%
PopulationHow many people live in this area.27,478
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.409 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$113,961
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$137,547
Average tempThe average temperature here across a full year.57°F
Annual precipHow much rain and melted snow falls here in a typical year.44 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

550 Hart Ln 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 74% of homes in Sebastopol 95472
  • Costs less per square foot than 81% of homes in Sebastopol 95472
  • Has a bigger lot than 85% of homes in Sonoma County

What homes are worth in Sebastopol 95472

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

This home
$490K$2.2M

This home is worth more than 26% of homes in Sebastopol 95472.

How it measures up in Sebastopol 95472

The dot is this home. The mark in the middle is the typical home in Sebastopol 95472.

Estimated value$832,985
CheaperTypical $1,016,738Pricier

Pricier than 26% of homes nearby

Price per ft²$497
CheaperTypical $602Pricier

Pricier than 19% of homes nearby

Living area1,675 ft²
SmallerTypical 1,668 ft²Bigger

Bigger than 51% of homes nearby

Lot size1.08 ac
SmallerTypical 1.03 acBigger

Bigger than 52% of homes nearby

Year built1972
OlderTypical 1971Newer

Newer than 54% of homes nearby

How 550 Hart Ln ranks against every home in each area.
MeasureThis homeSebastopol 95472Sonoma County
Estimated valuepricier than$832,98526% of homes58% of homes
Price per ft²pricier than$49719% of homes53% of homes
Living areabigger than1,675 ft²51% of homes56% of homes
Lot sizebigger than1.08 ac52% of homes85% of homes
Year builtnewer than197254% of homes38% of homes

About 550 Hart Ln

How much is 550 Hart Ln, Sebastopol, CA worth?

The TopHap Estimate for 550 Hart Ln, Sebastopol, CA is $832,985 as of Sep 24, 2026. The likely range is $770,917 to $895,053. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 550 Hart Ln, Sebastopol, CA last sell?

550 Hart Ln, Sebastopol, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 550 Hart Ln, Sebastopol, CA?

550 Hart Ln, Sebastopol, CA has 3 bedrooms, 2 bathrooms and 1,675 square feet of living space.

When was 550 Hart Ln, Sebastopol, CA built?

550 Hart Ln, Sebastopol, CA was built in 1972, making it 54 years old. The building has 1 story.

What schools serve 550 Hart Ln, Sebastopol, CA?

550 Hart Ln, Sebastopol, CA is assigned to Analy High School (high), rated A-; Park Side Elementary School (elementary), rated A+; Brook Haven Middle School (middle), rated C. All sit in West Sonoma County Union High School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 550 Hart Ln, Sebastopol, CA compare to other homes in Sebastopol 95472?

Among the 9,231 homes in Sebastopol 95472, it is worth more than 26% of them ($832,985 against a typical $1,016,738), its price per square foot is higher than 19% of them ($497 against a typical $602), it is bigger than 51% of them (1,675 ft² against a typical 1,668 ft²), its lot is bigger than 52% of them (1.08 ac against a typical 1.03 ac) and it is newer than 54% of them (1972 against a typical 1971). Measured against all of Sonoma County, it is worth more than 58% 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 550 Hart Ln, Sebastopol, CA?

The 2025 property tax bill for 550 Hart Ln, Sebastopol, CA was $2,221. The county assessed it at $154,934.

More homes on Hart Ln

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Assigned schools

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