Duplex (2 Units, Any Combination)Residential
1821 SANSONE DR
SANTA ROSA, CA 95403
3
Beds
1
Baths
1,098 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.
0.69 ac
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
3
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.
Tax & Assessment
Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,064 (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.$178,688 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$46,370
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$132,318
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$175,185
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
45
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
33
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.11 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.Duplex (2 Units, Any Combination)
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.1930
Lot (acres)The size of the land the home sits on, from county records.0.69
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, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.Yes
Transaction History(3)
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.
MEH
Hilliard Comstock Middle SchoolF
Middle · Grades 7–8 · 1.0 mi
Jack London Elementary SchoolC
Elementary · Grades KG–6 · 1.1 mi
Piner High SchoolC-
High · Grades 9–12 · 1.3 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%
Owner Tools
Do you own this home?
Claim this homeData 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
1821 Sansone Dr 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.
- Smaller than 87% of homes in Santa Rosa 95403
- Has a bigger lot than 88% of homes in Santa Rosa 95403
- Among the oldest 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.
Living area1,098 ft²
SmallerTypical 1,641 ft²Bigger
Bigger than 13% of homes nearby
Lot size0.69 ac
SmallerTypical 0.15 acBigger
Bigger than 88% of homes nearby
Year built1900
OlderTypical 1989Newer
Older than almost all homes nearby
| Measure | This home | Santa Rosa 95403 | Sonoma County |
|---|---|---|---|
| Living areabigger than | 1,098 ft² | 13% of homes | 17% of homes |
| Lot sizebigger than | 0.69 ac | 88% of homes | 81% of homes |
| Year builtnewer than | 1900 | almost no homes | almost no homes |
About 1821 Sansone Dr
When did 1821 Sansone Dr, Santa Rosa, CA last sell?
1821 Sansone Dr, Santa Rosa, CA last sold on Jan 1, 1900, according to the county's recorded deed.
How big is 1821 Sansone Dr, Santa Rosa, CA?
1821 Sansone Dr, Santa Rosa, CA has 3 bedrooms, 1 bathrooms, 1,098 square feet of living space and a 0.69-acre lot.
When was 1821 Sansone Dr, Santa Rosa, CA built?
1821 Sansone Dr, Santa Rosa, CA was built in 1900, making it 126 years old. The building has 1 story.
What schools serve 1821 Sansone Dr, Santa Rosa, CA?
1821 Sansone Dr, Santa Rosa, CA is assigned to Hilliard Comstock Middle School (middle), rated F; Jack London Elementary School (elementary), rated C; 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 1821 Sansone Dr, Santa Rosa, CA compare to other homes in Santa Rosa 95403?
Among the 12,673 homes in Santa Rosa 95403, it is bigger than 13% of them (1,098 ft² against a typical 1,641 ft²), its lot is bigger than 88% of them (0.69 ac against a typical 0.15 ac) and it is newer than almost none of them (1900 against a typical 1989). These shares are recounted nightly from the full county assessor record for each area, not from active listings.
What are the property taxes on 1821 Sansone Dr, Santa Rosa, CA?
The 2025 property tax bill for 1821 Sansone Dr, Santa Rosa, CA was $2,064. The county assessed it at $178,688.
More homes on Sansone Dr
- 1812 Sansone Dr$571K3 bd · 2 ba · 1,600 ft² · Sold $575K · Jul 2025
- 1932 Sansone Dr$893K3 bd · 2 ba · 1,776 ft² · Sold $860K · Apr 2022
- 1920 Sansone Dr$888K4 bd · 2 ba · 1,845 ft² · Sold $830K · Feb 2022
- 1813 Sansone Dr$758K3 bd · 2 ba · 1,478 ft² · Sold $723K · Sep 2021
- 1904 Sansone Dr$962K3 bd · 2.5 ba · 2,463 ft² · Sold $880K · Jun 2021
- 1905 Sansone Dr$981K4 bd · 3.5 ba · 2,198 ft² · Sold $270K · Apr 2021
- 1816 Sansone Dr$692K3 bd · 2 ba · 1,342 ft² · Sold $600K · Jul 2020
- 1840 Sansone Dr$661K3 bd · 2 ba · 1,469 ft² · Sold $575K · Apr 2020
- 1900 Sansone Dr$788K3 bd · 2 ba · 1,621 ft² · Sold $699K · Aug 2019
- 1832 Sansone Dr$733K4 bd · 2 ba · 1,880 ft² · Sold $166K · May 2019
- 1908 Sansone Dr4 bd · 3 ba · 2,606 ft² · Sold $200K · Aug 2018
- 1801 Sansone Dr4 bd · 5 ba · 2,792 ft² · Sold $725K · May 2017
Closest homes
- 3337 Canary Pl$486K106 ft · 3 bd · 2 ba · 1,334 ft² · Sold $260K · Aug 2009
- 3341 Canary Pl$623K161 ft · 3 bd · 2 ba · 1,307 ft² · Sold $144K · Oct 1994
- 1819 Sansone Dr$666K130 ft · 3 bd · 2 ba · 1,739 ft² · Sold Jan 1900
- 3336 Canary Pl$546K160 ft · 3 bd · 2 ba · 1,056 ft² · Sold $141K · Mar 1996
- 1828 Sansone Dr$762K200 ft · 4 bd · 2 ba · 1,970 ft² · Sold Jan 1900
- 1832 Sansone Dr$733K206 ft · 4 bd · 2 ba · 1,880 ft² · Sold $166K · May 2019
- 3345 Canary Pl$613K214 ft · 3 bd · 2 ba · 1,517 ft² · Sold $194K · Sep 1999
- 1843 Sansone Ct$656K170 ft · 3 bd · 2 ba · 1,600 ft² · Sold $400K · Sep 2008
More homes in Santa Rosa 95403
- 5270 El Mercado Pkwy$450K2 bd · 2 ba · 1,040 ft² · Sold $450K · Oct 2026
- 5250 Whispering Creek Dr3,018 ft² · Sold $4.9M · Oct 2026
- 2318 Avignon Cir$700K3 bd · 2.5 ba · 1,807 ft² · Sold $685K · Oct 2026
- 740 Shiloh Ter$4M4 bd · 4 ba · 4,310 ft² · Sold $3.7M · Oct 2026
- 777 Shiloh Cyn$3.8M5 bd · 4.5 ba · 5,800 ft² · Sold $3.7M · Oct 2026
- 1600 Sorrel St$724K3 bd · 2.5 ba · 1,568 ft² · Sold Oct 2026
- 2490 Van Patter Dr$639K3 bd · 2.5 ba · 1,498 ft² · Sold $600K · Oct 2026
- 1908 Windmill Cir$378K2 bd · 1.5 ba · 966 ft² · Sold $378K · Oct 2026
- 2345 Sophia Dr$575K4 bd · 2 ba · 1,343 ft² · Sold $569K · Oct 2026
- 3749 Cross Creek Rd$1.4M4 bd · 2.5 ba · 2,679 ft² · Sold $1.4M · Oct 2026
- 5439 Vista Grande Dr$1.4M4 bd · 2.5 ba · 2,666 ft² · Sold $1M · Oct 2026
- 3745 Espresso Ct$745K3 bd · 2 ba · 1,453 ft² · Sold $745K · Sep 2026
Assigned schools
Explore the area
See this home in context
Open 1821 Sansone Dr 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