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Single Family ResidenceResidential
$891,442$660 / 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
Last sold for $700,000 on Apr 20, 2018

3420 ROSS RD

SEBASTOPOL, CA 95472
3
Beds
1
Baths
1,350 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.
0.5 ac
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.
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.

Valuation

$891K
$825K low$958K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$700,000 · Apr 20, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,260 (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.$812,405 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$348,173
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$464,232
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$796,477

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.39
99
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
73
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.178 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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 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.Custom Design
CountySONOMA
Lot (acres)The size of the land the home sits on, from county records.0.50
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
HeatingThe type of heating system in the home.Floor/Wall Furnace
CoolingThe type of cooling or air conditioning in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

H
Analy High SchoolB+
High · Grades 9–12 · 3.3 mi
E
Oak Grove Elementary/Willowside Middle SchoolB+
Elementary · Grades 1–8 · 3.5 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

3420 Ross Rd 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 66% of homes in Sebastopol 95472
  • Costs more per square foot than 83% of homes in Sonoma County
  • Smaller than 70% of homes in Sebastopol 95472
  • Has a bigger lot than 77% of homes in Sonoma County
  • Older than 74% 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
$494K$2.2M

This home is worth more than 34% 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$891,442
CheaperTypical $1,016,560Pricier

Pricier than 34% of homes nearby

Price per ft²$660
CheaperTypical $601Pricier

Pricier than 65% of homes nearby

Living area1,350 ft²
SmallerTypical 1,668 ft²Bigger

Bigger than 30% of homes nearby

Lot size0.5 ac
SmallerTypical 1.02 acBigger

Bigger than 33% of homes nearby

Year built1963
OlderTypical 1971Newer

Newer than 40% of homes nearby

How 3420 Ross Rd ranks against every home in each area.
MeasureThis homeGratonSebastopol 95472Sonoma County
Estimated valuepricier than$891,44261% of homes34% of homes65% of homes
Price per ft²pricier than$66077% of homes65% of homes83% of homes
Living areabigger than1,350 ft²41% of homes30% of homes35% of homes
Lot sizebigger than0.5 ac58% of homes33% of homes77% of homes
Year builtnewer than196346% of homes40% of homes26% of homes

About 3420 Ross Rd

How much is 3420 Ross Rd, Sebastopol, CA worth?

The TopHap Estimate for 3420 Ross Rd, Sebastopol, CA is $891,442 as of Sep 24, 2026. The likely range is $825,367 to $957,517. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3420 Ross Rd, Sebastopol, CA last sell?

3420 Ross Rd, Sebastopol, CA last sold on Apr 20, 2018 for $700,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 3420 Ross Rd, Sebastopol, CA?

3420 Ross Rd, Sebastopol, CA has 3 bedrooms, 1 bathrooms, 1,350 square feet of living space and a 0.50-acre lot.

When was 3420 Ross Rd, Sebastopol, CA built?

3420 Ross Rd, Sebastopol, CA was built in 1963, making it 63 years old. It is a custom design home. The building has 1 story.

What schools serve 3420 Ross Rd, Sebastopol, CA?

3420 Ross Rd, Sebastopol, CA is assigned to Analy High School (high), rated B+; Oak Grove Elementary/Willowside Middle School (elementary), rated B+. All sit in West Sonoma County Union High School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3420 Ross Rd, Sebastopol, CA compare to other homes in Sebastopol 95472?

Among the 9,231 homes in Sebastopol 95472, it is worth more than 34% of them ($891,442 against a typical $1,016,560), its price per square foot is higher than 65% of them ($660 against a typical $601), it is bigger than 30% of them (1,350 ft² against a typical 1,668 ft²), its lot is bigger than 33% of them (0.5 ac against a typical 1.02 ac) and it is newer than 40% of them (1963 against a typical 1971). Measured against all of Sonoma County, it is worth more than 65% 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 3420 Ross Rd, Sebastopol, CA?

The 2025 property tax bill for 3420 Ross Rd, Sebastopol, CA was $11,260. The county assessed it at $812,405.

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