Skip to content
Skip to content
TopHapOpen in map
Duplex (2 Units, Any Combination)Residential
Last sold for $400,000 on Feb 1, 2001

520 RANDOLPH ST

NAPA, CA 94559
5
Beds
2
Baths
1,832 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.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
1910
Year BuiltThe year the home was originally built, according to county records.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$400,000 · Feb 1, 2001

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,107 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$879,616 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$387,788
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$491,828
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$862,370
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$879,616

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.39
39
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
35
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.6 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.11%
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.0.2 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.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
CountyNAPA
Lot (acres)The size of the land the home sits on, from county records.0.16
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
HeatingThe type of heating system in the home.None
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(6)

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 · 0.3 mi
H
Napa High SchoolC
High · Grades 9–12 · 1.3 mi
M
Redwood Middle SchoolC
Middle · Grades 6–8 · 2.5 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%

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

520 Randolph St 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 76% of homes in Napa Abajo
  • Has a bigger lot than 65% of homes in Napa Abajo
  • Older than 97% of homes in Napa County

How it measures up in Napa 94559

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

Living area1,832 ft²
SmallerTypical 1,434 ft²Bigger

Bigger than 71% of homes nearby

Lot size0.16 ac
SmallerTypical 0.15 acBigger

Bigger than 61% of homes nearby

Year built1910
OlderTypical 1955Newer

Newer than 10% of homes nearby

How 520 Randolph St ranks against every home in each area.
MeasureThis homeNapa AbajoNapa 94559Napa County
Living areabigger than1,832 ft²76% of homes71% of homes58% of homes
Lot sizebigger than0.16 ac65% of homes61% of homes46% of homes
Year builtnewer than191029% of homes10% of homes3% of homes

About 520 Randolph St

When did 520 Randolph St, Napa, CA last sell?

520 Randolph St, Napa, CA last sold on Feb 1, 2001 for $400,000, according to the county's recorded deed.

How big is 520 Randolph St, Napa, CA?

520 Randolph St, Napa, CA has 5 bedrooms, 2 bathrooms, 1,832 square feet of living space and a 0.16-acre lot.

When was 520 Randolph St, Napa, CA built?

520 Randolph St, Napa, CA was built in 1910, making it 116 years old. It is a duplex single home.

What schools serve 520 Randolph St, Napa, CA?

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

How does 520 Randolph St, Napa, CA compare to other homes in Napa 94559?

Among the 7,763 homes in Napa 94559, it is bigger than 71% of them (1,832 ft² against a typical 1,434 ft²), its lot is bigger than 61% of them (0.16 ac against a typical 0.15 ac) and it is newer than 10% of them (1910 against a typical 1955). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 520 Randolph St, Napa, CA?

The 2026 property tax bill for 520 Randolph St, Napa, CA was $11,107. The county assessed it at $879,616.

More homes on Randolph St

Closest homes

More homes in Napa 94559

Assigned schools

Explore the area

See this home in context

Open 520 Randolph St 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