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Single Family ResidenceResidential
$581,789$263 / 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 $485,000 on Aug 20, 2021

231 HARPER ST

GRASS VALLEY, CA 95945
3
Beds
2.5
Baths
2,209 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.
0.25 ac
Lot SizeThe size of the land the home sits on, from county records.
1890
Year BuiltThe year the home was originally built, according to county records.
2
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.

Valuation

$582K
$564K low$600K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$485,000 · Aug 20, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,163 (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.$484,300 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$99,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$384,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$474,912
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$517,770

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Traditional/Old
CountyNEVADA
Lot (acres)The size of the land the home sits on, from county records.0.25
HeatingThe type of heating system in the home.Electric
CoolingThe type of cooling or air conditioning in the home.Wall Unit
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 1,171 ft²

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.

E
Bell Hill AcademyB+
Elementary · Grades KG–4 · 0.6 mi
M
Lyman Gilmore Middle SchoolC
Middle · Grades 5–8 · 0.8 mi
H
Nevada Union High SchoolB
High · Grades 9–12 · 1.3 mi

District: Grass Valley Elementary School District

Neighborhood · ZIP 95945These 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.108
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.105

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.94%
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.0.9%
PopulationHow many people live in this area.24,965
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.362 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$66,899
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$89,570
Average tempThe average temperature here across a full year.56°F
Annual precipHow much rain and melted snow falls here in a typical year.54 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

231 Harper 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.

  • Worth more than 68% of homes in Grass Valley 95945
  • Costs less per square foot than 87% of homes in Grass Valley 95945
  • Bigger than 82% of homes in Grass Valley 95945
  • Has a smaller lot than 83% of homes in Nevada County
  • Older than 98% of homes in Nevada County

What homes are worth in Grass Valley 95945

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

This home
$262K$1.1M

This home is worth more than 68% of homes in Grass Valley 95945.

How it measures up in Grass Valley 95945

The dot is this home. The mark in the middle is the typical home in Grass Valley 95945.

Estimated value$581,789
CheaperTypical $507,664Pricier

Pricier than 68% of homes nearby

Price per ft²$263
CheaperTypical $338Pricier

Pricier than 13% of homes nearby

Living area2,209 ft²
SmallerTypical 1,517 ft²Bigger

Bigger than 82% of homes nearby

Lot size0.25 ac
SmallerTypical 0.65 acBigger

Bigger than 34% of homes nearby

Year built1890
OlderTypical 1977Newer

Newer than 4% of homes nearby

How 231 Harper St ranks against every home in each area.
MeasureThis homeGrass Valley 95945Nevada County
Estimated valuepricier than$581,78968% of homes45% of homes
Price per ft²pricier than$26313% of homes16% of homes
Living areabigger than2,209 ft²82% of homes72% of homes
Lot sizebigger than0.25 ac34% of homes17% of homes
Year builtnewer than18904% of homes2% of homes

About 231 Harper St

How much is 231 Harper St, Grass Valley, CA worth?

The TopHap Estimate for 231 Harper St, Grass Valley, CA is $581,789 as of Sep 24, 2026. The likely range is $563,788 to $599,790. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 231 Harper St, Grass Valley, CA last sell?

231 Harper St, Grass Valley, CA last sold on Aug 20, 2021 for $485,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 231 Harper St, Grass Valley, CA?

231 Harper St, Grass Valley, CA has 3 bedrooms, 2.5 bathrooms, 2,209 square feet of living space and a 0.25-acre lot.

When was 231 Harper St, Grass Valley, CA built?

231 Harper St, Grass Valley, CA was built in 1890, making it 136 years old. It is a traditional/old home. The building has 2 stories.

What schools serve 231 Harper St, Grass Valley, CA?

231 Harper St, Grass Valley, CA is assigned to Bell Hill Academy (elementary), rated B+; Lyman Gilmore Middle School (middle), rated C; Nevada Union High School (high), rated B. All sit in Grass Valley Elementary School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 231 Harper St, Grass Valley, CA compare to other homes in Grass Valley 95945?

Among the 9,192 homes in Grass Valley 95945, it is worth more than 68% of them ($581,789 against a typical $507,664), its price per square foot is higher than 13% of them ($263 against a typical $338), it is bigger than 82% of them (2,209 ft² against a typical 1,517 ft²), its lot is bigger than 34% of them (0.25 ac against a typical 0.65 ac) and it is newer than 4% of them (1890 against a typical 1977). Measured against all of Nevada County, it is worth more than 45% 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 231 Harper St, Grass Valley, CA?

The 2025 property tax bill for 231 Harper St, Grass Valley, CA was $5,163. The county assessed it at $484,300.

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