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Single Family ResidenceResidential
$117,083$64 / 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 87How 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 $70,300 on Jan 11, 2021

512 UNION ST

GREENVILLE, OH 45331
5
Beds
1.5
Baths
1,838 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.
1.17 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.
2
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
12
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$117K
$102K low$133K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$70,300 · Jan 11, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,129 (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.$64,340 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$15,260
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$49,080
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$183,810

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.Conventional
CountyDARKE
Lot (acres)The size of the land the home sits on, from county records.1.17
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.No Foundation
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.None
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.Deck · 80 ft²Patio · 220 ft²Porch · 776 ft²

Transaction History(7)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(3)

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

H
Greenville Senior High SchoolC
High · Grades 9–12 · 0.7 mi
M
Greenville Middle SchoolB-
Middle · Grades 5–8 · 1.5 mi

District: Greenville City School District

Neighborhood · ZIP 45331These 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.122
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.218
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.64

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.11%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.13%
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.22,246
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.147 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$57,249
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$72,125
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.38 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

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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

512 Union 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 less than 80% of homes in Darke County
  • Costs less per square foot than 91% of homes in Darke County
  • Bigger than 69% of homes in Greenville 45331
  • Has a bigger lot than 79% of homes in Greenville 45331
  • Older than 78% of homes in Greenville 45331

What homes are worth in Greenville 45331

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

This home
$52K$595K

This home is worth more than 23% of homes in Greenville 45331.

How it measures up in Greenville 45331

The dot is this home. The mark in the middle is the typical home in Greenville 45331.

Estimated value$117,083
CheaperTypical $184,870Pricier

Pricier than 23% of homes nearby

Price per ft²$64
CheaperTypical $128Pricier

Pricier than 10% of homes nearby

Living area1,838 ft²
SmallerTypical 1,536 ft²Bigger

Bigger than 69% of homes nearby

Lot size1.17 ac
SmallerTypical 0.29 acBigger

Bigger than 79% of homes nearby

Year built1900
OlderTypical 1960Newer

Newer than 22% of homes nearby

How 512 Union St ranks against every home in each area.
MeasureThis homeGreenville 45331Darke County
Estimated valuepricier than$117,08323% of homes20% of homes
Price per ft²pricier than$6410% of homes9% of homes
Living areabigger than1,838 ft²69% of homes66% of homes
Lot sizebigger than1.17 ac79% of homes70% of homes
Year builtnewer than190022% of homes29% of homes

About 512 Union St

How much is 512 Union St, Greenville, OH worth?

The TopHap Estimate for 512 Union St, Greenville, OH is $117,083 as of Sep 24, 2026. The likely range is $101,522 to $132,644. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 512 Union St, Greenville, OH last sell?

512 Union St, Greenville, OH last sold on Jan 11, 2021 for $70,300, according to the county's recorded deed. TopHap holds 6 recorded sales for this parcel.

How big is 512 Union St, Greenville, OH?

512 Union St, Greenville, OH has 5 bedrooms, 1.5 bathrooms, 1,838 square feet of living space and a 1.17-acre lot.

When was 512 Union St, Greenville, OH built?

512 Union St, Greenville, OH was built in 1900, making it 126 years old. It is a conventional home. The building has 2 stories.

What schools serve 512 Union St, Greenville, OH?

512 Union St, Greenville, OH is assigned to Greenville Senior High School (high), rated C; Greenville Middle School (middle), rated B-. All sit in Greenville City School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 512 Union St, Greenville, OH compare to other homes in Greenville 45331?

Among the 8,311 homes in Greenville 45331, it is worth more than 23% of them ($117,083 against a typical $184,870), its price per square foot is higher than 10% of them ($64 against a typical $128), it is bigger than 69% of them (1,838 ft² against a typical 1,536 ft²), its lot is bigger than 79% of them (1.17 ac against a typical 0.29 ac) and it is newer than 22% of them (1900 against a typical 1960). Measured against all of Darke County, it is worth more than 20% 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 512 Union St, Greenville, OH?

The 2025 property tax bill for 512 Union St, Greenville, OH was $2,129. The county assessed it at $64,340.

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Assigned schools

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