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Single Family ResidenceResidential
$567,672$507 / 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 92How 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

18420 RIVERSIDE DR

EL VERANO, CA 95433
2
Beds
1
Baths
1,120 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.
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
1951
Year BuiltThe year the home was originally built, according to county records.
1
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

$568K
$525K low$611K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,620 (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.$174,669 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$103,586
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$71,083
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$171,245

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.37
100
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
53
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
36
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.168 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
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.1956
Lot (acres)The size of the land the home sits on, from county records.0.18
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

Transaction History(2)

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
El Verano Elementary SchoolC-
Elementary · Grades KG–5 · 0.1 mi
M
Altimira Middle SchoolD
Middle · Grades 6–8 · 0.6 mi
H
Sonoma Valley High SchoolB+
High · Grades 9–12 · 2.4 mi

District: Sonoma Valley Unified School District

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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

18420 Riverside 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.

  • Worth less than 82% of homes in Sonoma County
  • Smaller than 82% of homes in Sonoma County
  • Older than 84% of homes in Sonoma County

What homes are worth in ZIP 95433

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

This home
$352K$2.3M

This home is worth more than 32% of homes in ZIP 95433.

How it measures up in ZIP 95433

The dot is this home. The mark in the middle is the typical home in ZIP 95433.

Estimated value$567,672
CheaperTypical $625,096Pricier

Pricier than 32% of homes nearby

Price per ft²$507
CheaperTypical $528Pricier

Pricier than 44% of homes nearby

Living area1,120 ft²
SmallerTypical 1,284 ft²Bigger

Bigger than 31% of homes nearby

Lot size0.18 ac
SmallerTypical 0.16 acBigger

Bigger than 55% of homes nearby

Year built1951
OlderTypical 1975Newer

Newer than 23% of homes nearby

How 18420 Riverside Dr ranks against every home in each area.
MeasureThis homeZIP 95433Sonoma County
Estimated valuepricier than$567,67232% of homes18% of homes
Price per ft²pricier than$50744% of homes57% of homes
Living areabigger than1,120 ft²31% of homes18% of homes
Lot sizebigger than0.18 ac55% of homes57% of homes
Year builtnewer than195123% of homes16% of homes

About 18420 Riverside Dr

How much is 18420 Riverside Dr, El Verano, CA worth?

The TopHap Estimate for 18420 Riverside Dr, El Verano, CA is $567,672 as of Jul 14, 2026. The likely range is $524,729 to $610,615. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18420 Riverside Dr, El Verano, CA last sell?

18420 Riverside Dr, El Verano, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 18420 Riverside Dr, El Verano, CA?

18420 Riverside Dr, El Verano, CA has 2 bedrooms, 1 bathrooms, 1,120 square feet of living space and a 0.18-acre lot.

When was 18420 Riverside Dr, El Verano, CA built?

18420 Riverside Dr, El Verano, CA was built in 1951, making it 75 years old. The building has 1 story.

What schools serve 18420 Riverside Dr, El Verano, CA?

18420 Riverside Dr, El Verano, CA is assigned to El Verano Elementary School (elementary), rated C-; Altimira Middle School (middle), rated D; Sonoma Valley High School (high), rated B+. All sit in Sonoma Valley Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18420 Riverside Dr, El Verano, CA compare to other homes in ZIP 95433?

Among the 251 homes in ZIP 95433, it is worth more than 32% of them ($567,672 against a typical $625,096), its price per square foot is higher than 44% of them ($507 against a typical $528), it is bigger than 31% of them (1,120 ft² against a typical 1,284 ft²), its lot is bigger than 55% of them (0.18 ac against a typical 0.16 ac) and it is newer than 23% of them (1951 against a typical 1975). Measured against all of Sonoma County, it is worth more than 18% 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 18420 Riverside Dr, El Verano, CA?

The 2025 property tax bill for 18420 Riverside Dr, El Verano, CA was $3,620. The county assessed it at $174,669.

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Assigned schools

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