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Planned Unit Development (Pud)Residential
$325,190$396 / 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 98How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

1863 WINDMILL CIR

SANTA ROSA, CA 95403
1
Beds
2 / 1
Baths
822 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.
998 ft²
Lot SizeThe size of the land the home sits on, from county records.
1985
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$325K
$318K low$333K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,567 (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.$134,688 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$44,890
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$89,798
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$134,688

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.36
95
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
62
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.103 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.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.Planned Unit Development (Pud)
CountySonoma
Lot (acres)The size of the land the home sits on, from county records.0.02
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
PoolWhether the property has a pool, and what kind, such as in-ground.No

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

M
Hilliard Comstock Middle SchoolF
Middle · Grades 7–8 · 0.5 mi
E
James Monroe Elementary SchoolD
Elementary · Grades KG–6 · 0.6 mi
H
Piner High SchoolC
High · Grades 9–12 · 0.9 mi

District: Santa Rosa High School District

Neighborhood · ZIP 95403These 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.104
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.511

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.4%
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.43,826
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,997 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$96,508
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$119,029
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.37 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

1863 Windmill Cir 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.

  • Among the least valuable homes in Sonoma County
  • Costs less per square foot than 83% of homes in Sonoma County
  • Smaller than 97% of homes in Santa Rosa 95403
  • Has a smaller lot than 96% of homes in Sonoma County
  • Older than 65% of homes in Santa Rosa 95403

What homes are worth in Santa Rosa 95403

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

This home
$302K$1.9M

This home is worth more than 3% of homes in Santa Rosa 95403.

How it measures up in Santa Rosa 95403

The dot is this home. The mark in the middle is the typical home in Santa Rosa 95403.

Estimated value$325,190
CheaperTypical $709,552Pricier

Pricier than 3% of homes nearby

Price per ft²$396
CheaperTypical $437Pricier

Pricier than 27% of homes nearby

Living area822 ft²
SmallerTypical 1,632 ft²Bigger

Bigger than 3% of homes nearby

Lot size998 ft²
SmallerTypical 0.15 acBigger

Bigger than 8% of homes nearby

Year built1985
OlderTypical 1989Newer

Newer than 35% of homes nearby

How 1863 Windmill Cir ranks against every home in each area.
MeasureThis homeSanta Rosa 95403Sonoma County
Estimated valuepricier than$325,1903% of homesalmost no homes
Price per ft²pricier than$39627% of homes17% of homes
Living areabigger than822 ft²3% of homes5% of homes
Lot sizebigger than998 ft²8% of homes4% of homes
Year builtnewer than198535% of homes63% of homes

About 1863 Windmill Cir

How much is 1863 Windmill Cir, Santa Rosa, CA worth?

The TopHap Estimate for 1863 Windmill Cir, Santa Rosa, CA is $325,190 as of Jul 14, 2026. The likely range is $317,840 to $332,540. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1863 Windmill Cir, Santa Rosa, CA last sell?

1863 Windmill Cir, Santa Rosa, CA last sold on Mar 9, 1987, according to the county's recorded deed.

How big is 1863 Windmill Cir, Santa Rosa, CA?

1863 Windmill Cir, Santa Rosa, CA has 1 bedrooms, 2 bathrooms, 822 square feet of living space and a 0.02-acre lot.

When was 1863 Windmill Cir, Santa Rosa, CA built?

1863 Windmill Cir, Santa Rosa, CA was built in 1985, making it 41 years old. The building has 2 stories.

What schools serve 1863 Windmill Cir, Santa Rosa, CA?

1863 Windmill Cir, Santa Rosa, CA is assigned to Hilliard Comstock Middle School (middle), rated F; James Monroe Elementary School (elementary), rated D; Piner High School (high), rated C. All sit in Santa Rosa High School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1863 Windmill Cir, Santa Rosa, CA compare to other homes in Santa Rosa 95403?

Among the 12,539 homes in Santa Rosa 95403, it is worth more than 3% of them ($325,190 against a typical $709,552), its price per square foot is higher than 27% of them ($396 against a typical $437), it is bigger than 3% of them (822 ft² against a typical 1,632 ft²), its lot is bigger than 8% of them (998 ft² against a typical 0.15 ac) and it is newer than 35% of them (1985 against a typical 1989). Measured against all of Sonoma County, it is worth more than almost no 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 1863 Windmill Cir, Santa Rosa, CA?

The 2025 property tax bill for 1863 Windmill Cir, Santa Rosa, CA was $1,567. The county assessed it at $134,688.

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