Skip to content
Skip to content
TopHapOpen in map
Quadplex (4 Units, Any Combination)Residential

909 JOANNE CT

ROHNERT PARK, CA 94928
4
Beds
2
Baths
3,292 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1974
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,370 (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.$458,017 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$113,504
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$344,513
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$449,037

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.30
76
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
49
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.16 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.Quadplex (4 Units, Any Combination)
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.0.17
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.None
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, Detached
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
Technology Middle SchoolF
Middle · Grades 6–8 · 0.5 mi
H
Rancho Cortate High SchoolC-
High · Grades 9–12 · 0.6 mi
E
John Reed Elementary SchoolD-
Elementary · Grades KG–5 · 0.7 mi

District: Cotati-Rohnert Park Unified School District

Neighborhood · ZIP 94928These 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.74
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 100.429

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.38,270
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,396 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$93,170
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$115,834
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.33 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.78%

Owner Tools

Do you own this home?
Claim this home

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

909 Joanne Ct 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 97% of homes in Rohnert Park 94928
  • Has a bigger lot than 78% of homes in Rohnert Park 94928
  • Older than 77% of homes in Rohnert Park 94928

How it measures up in Rohnert Park 94928

The dot is this home. The mark in the middle is the typical home in Rohnert Park 94928.

Living area3,292 ft²
SmallerTypical 1,537 ft²Bigger

Bigger than 97% of homes nearby

Lot size0.17 ac
SmallerTypical 0.13 acBigger

Bigger than 78% of homes nearby

Year built1974
OlderTypical 1980Newer

Newer than 23% of homes nearby

How 909 Joanne Ct ranks against every home in each area.
MeasureThis homeRohnert Park 94928Sonoma County
Living areabigger than3,292 ft²97% of homes96% of homes
Lot sizebigger than0.17 ac78% of homes52% of homes
Year builtnewer than197423% of homes43% of homes

About 909 Joanne Ct

When did 909 Joanne Ct, Rohnert Park, CA last sell?

909 Joanne Ct, Rohnert Park, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 909 Joanne Ct, Rohnert Park, CA?

909 Joanne Ct, Rohnert Park, CA has 4 bedrooms, 2 bathrooms, 3,292 square feet of living space and a 0.17-acre lot.

When was 909 Joanne Ct, Rohnert Park, CA built?

909 Joanne Ct, Rohnert Park, CA was built in 1974, making it 52 years old. It is a custom design home. The building has 2 stories.

What schools serve 909 Joanne Ct, Rohnert Park, CA?

909 Joanne Ct, Rohnert Park, CA is assigned to Technology Middle School (middle), rated F; Rancho Cortate High School (high), rated C-; John Reed Elementary School (elementary), rated D-. All sit in Cotati-Rohnert Park Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 909 Joanne Ct, Rohnert Park, CA compare to other homes in Rohnert Park 94928?

Among the 13,012 homes in Rohnert Park 94928, it is bigger than 97% of them (3,292 ft² against a typical 1,537 ft²), its lot is bigger than 78% of them (0.17 ac against a typical 0.13 ac) and it is newer than 23% of them (1974 against a typical 1980). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 909 Joanne Ct, Rohnert Park, CA?

The 2025 property tax bill for 909 Joanne Ct, Rohnert Park, CA was $5,370. The county assessed it at $458,017.

More homes on Joanne Ct

Closest homes

More homes in Rohnert Park 94928

Assigned schools

Explore the area

See this home in context

Open 909 Joanne Ct on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map