Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$509,540$849 / 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

151 RIVERSIDE DR

NAPA, CA 94559
2
Beds
0
Baths
600 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.
0.35 ac
Lot SizeThe size of the land the home sits on, from county records.
1915
Year BuiltThe year the home was originally built, according to county records.
4
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.

Valuation

$510K
$500K low$519K high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$509,540
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$407,632

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,592 (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.$313,380 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$279,797
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$33,583
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$313,380

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.54
84
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
65
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
37
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
51
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. 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.150 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
CountyNapa
Lot (acres)The size of the land the home sits on, from county records.0.35
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
HeatingThe type of heating system in the home.None
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(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
Shearer Elementary SchoolD+
Elementary · Grades KG–5 · 0.4 mi
M
Silverado Middle SchoolC-
Middle · Grades 6–8 · 1.3 mi
H
Napa High SchoolB-
High · Grades 9–12 · 1.7 mi

District: Napa Valley Unified School District

Neighborhood · ZIP 94559These 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.97
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.400

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.21%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.25,170
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.628 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$87,352
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$122,518
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.25 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.78%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.Yes

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

151 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.

  • Among the least valuable homes in Napa Abajo
  • Costs more per square foot than 91% of homes in Napa Abajo
  • Among the smallest homes in Napa Abajo
  • Has a bigger lot than 98% of homes in Napa Abajo
  • Older than 96% of homes in Napa County

What homes are worth in Napa 94559

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

This home
$448K$2.8M

This home is worth more than 4% of homes in Napa 94559.

How it measures up in Napa 94559

The dot is this home. The mark in the middle is the typical home in Napa 94559.

Estimated value$509,540
CheaperTypical $805,030Pricier

Pricier than 4% of homes nearby

Price per ft²$849
CheaperTypical $606Pricier

Pricier than 90% of homes nearby

Living area600 ft²
SmallerTypical 1,408 ft²Bigger

Smaller than almost all homes nearby

Lot size0.35 ac
SmallerTypical 0.15 acBigger

Bigger than 91% of homes nearby

Year built1915
OlderTypical 1955Newer

Newer than 11% of homes nearby

How 151 Riverside Dr ranks against every home in each area.
MeasureThis homeNapa AbajoNapa 94559Napa County
Estimated valuepricier than$509,540almost no homes4% of homes7% of homes
Price per ft²pricier than$84991% of homes90% of homes87% of homes
Living areabigger than600 ft²almost no homesalmost no homesalmost no homes
Lot sizebigger than0.35 ac98% of homes91% of homes77% of homes
Year builtnewer than191531% of homes11% of homes4% of homes

About 151 Riverside Dr

How much is 151 Riverside Dr, Napa, CA worth?

The TopHap Estimate for 151 Riverside Dr, Napa, CA is $509,540 as of Jul 14, 2026. The likely range is $499,842 to $519,238. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 151 Riverside Dr, Napa, CA?

151 Riverside Dr, Napa, CA has 2 bedrooms, 600 square feet of living space and a 0.35-acre lot.

When was 151 Riverside Dr, Napa, CA built?

151 Riverside Dr, Napa, CA was built in 1915, making it 111 years old.

What schools serve 151 Riverside Dr, Napa, CA?

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

How does 151 Riverside Dr, Napa, CA compare to other homes in Napa 94559?

Among the 7,785 homes in Napa 94559, it is worth more than 4% of them ($509,540 against a typical $805,030), its price per square foot is higher than 90% of them ($849 against a typical $606), it is bigger than almost none of them (600 ft² against a typical 1,408 ft²), its lot is bigger than 91% of them (0.35 ac against a typical 0.15 ac) and it is newer than 11% of them (1915 against a typical 1955). Measured against all of Napa County, it is worth more than 7% 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 151 Riverside Dr, Napa, CA?

The 2025 property tax bill for 151 Riverside Dr, Napa, CA was $3,592. The county assessed it at $313,380.

Closest homes

More homes in Napa 94559

Assigned schools

Explore the area

See this home in context

Open 151 Riverside 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
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