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Single Family ResidenceResidential
$907,756$364 / 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 97How 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 $781,000 on May 13, 2022

1815 WARREN PL

ROHNERT PARK, CA 94928
4
Beds
2.5
Baths
2,495 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.
3,656 ft²
Lot SizeThe size of the land the home sits on, from county records.
2021
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.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$908K
$881K low$935K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$781,000 · May 13, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,313 (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.$845,000 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$337,717
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$507,283
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$828,433

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.21
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
80
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.
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.2022
Lot (acres)The size of the land the home sits on, from county records.0.08
HeatingThe type of heating system in the home.Central
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.

E
Monte Vista Elementary SchoolC-
Elementary · Grades KG–5 · 0.7 mi
H
Rancho Cortate High SchoolC-
High · Grades 9–12 · 1.4 mi
M
Technology Middle SchoolF
Middle · Grades 6–8 · 1.9 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%

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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

1815 Warren Pl 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 94% of homes in Rohnert Park 94928
  • Costs less per square foot than 92% of homes in Sonoma County
  • Bigger than 91% of homes in Rohnert Park 94928
  • Has a smaller lot than 86% of homes in Sonoma County
  • Newer than 98% of homes in Sonoma County

What homes are worth in Rohnert Park 94928

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

This home
$320K$985K

This home is worth more than 94% 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.

Estimated value$907,756
CheaperTypical $684,133Pricier

Pricier than 94% of homes nearby

Price per ft²$364
CheaperTypical $418Pricier

Pricier than 17% of homes nearby

Living area2,495 ft²
SmallerTypical 1,524 ft²Bigger

Bigger than 91% of homes nearby

Lot size3,656 ft²
SmallerTypical 0.13 acBigger

Bigger than 26% of homes nearby

Year built2021
OlderTypical 1980Newer

Newer than 96% of homes nearby

How 1815 Warren Pl ranks against every home in each area.
MeasureThis homeRohnert Park 94928Sonoma County
Estimated valuepricier than$907,75694% of homes67% of homes
Price per ft²pricier than$36417% of homes8% of homes
Living areabigger than2,495 ft²91% of homes88% of homes
Lot sizebigger than3,656 ft²26% of homes14% of homes
Year builtnewer than202196% of homes98% of homes

About 1815 Warren Pl

How much is 1815 Warren Pl, Rohnert Park, CA worth?

The TopHap Estimate for 1815 Warren Pl, Rohnert Park, CA is $907,756 as of Sep 24, 2026. The likely range is $880,954 to $934,558. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1815 Warren Pl, Rohnert Park, CA last sell?

1815 Warren Pl, Rohnert Park, CA last sold on May 13, 2022 for $781,000, according to the county's recorded deed.

How big is 1815 Warren Pl, Rohnert Park, CA?

1815 Warren Pl, Rohnert Park, CA has 4 bedrooms, 2.5 bathrooms, 2,495 square feet of living space and a 0.08-acre lot.

When was 1815 Warren Pl, Rohnert Park, CA built?

1815 Warren Pl, Rohnert Park, CA was built in 2021, making it 5 years old. The building has 2 stories.

What schools serve 1815 Warren Pl, Rohnert Park, CA?

1815 Warren Pl, Rohnert Park, CA is assigned to Monte Vista Elementary School (elementary), rated C-; Rancho Cortate High School (high), rated C-; Technology Middle School (middle), rated F. All sit in Cotati-Rohnert Park Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1815 Warren Pl, Rohnert Park, CA compare to other homes in Rohnert Park 94928?

Among the 13,016 homes in Rohnert Park 94928, it is worth more than 94% of them ($907,756 against a typical $684,133), its price per square foot is higher than 17% of them ($364 against a typical $418), it is bigger than 91% of them (2,495 ft² against a typical 1,524 ft²), its lot is bigger than 26% of them (3,656 ft² against a typical 0.13 ac) and it is newer than 96% of them (2021 against a typical 1980). Measured against all of Sonoma County, it is worth more than 67% 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 1815 Warren Pl, Rohnert Park, CA?

The 2025 property tax bill for 1815 Warren Pl, Rohnert Park, CA was $12,313. The county assessed it at $845,000.

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