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Single Family ResidenceResidential
$182,919$224 / 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 81How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $105,000 on Nov 30, 2018

9 LIMESTONE PL

UNION, ME 04862
3
Beds
1
Baths
816 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.
0.54 ac
Lot SizeThe size of the land the home sits on, from county records.
1840
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$183K
$148K low$218K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$105,000 · Nov 30, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,679 (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.$276,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$64,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$212,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$175,100

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
CountyKNOX
Lot (acres)The size of the land the home sits on, from county records.0.54
ConstructionThe main material the home's frame and walls are built from.Brick
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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
Union Elementary SchoolC
Elementary · Grades PK–6 · 1.4 mi
H
Medomak Valley High SchoolC+
High · Grades 9–12 · 6.3 mi
M
Medomak Middle SchoolB-
Middle · Grades 7–8 · 6.4 mi

District: School Administrative District 40

Neighborhood · ZIP 04862These 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.85
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.76
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.63

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.84%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.28%
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.0.8%
PopulationHow many people live in this area.3,792
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.56 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$63,641
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$80,525
Average tempThe average temperature here across a full year.45°F
Annual precipHow much rain and melted snow falls here in a typical year.48 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.50%

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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

9 Limestone Pl 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 95% of homes in Knox County
  • Costs less per square foot than 79% of homes in Union 04862
  • Smaller than 91% of homes in Knox County
  • Has a smaller lot than 93% of homes in Union 04862
  • Older than 96% of homes in Union 04862

What homes are worth in Union 04862

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

This home
$126K$874K

This home is worth more than 11% of homes in Union 04862.

How it measures up in Union 04862

The dot is this home. The mark in the middle is the typical home in Union 04862.

Estimated value$182,919
CheaperTypical $326,505Pricier

Pricier than 11% of homes nearby

Price per ft²$224
CheaperTypical $297Pricier

Pricier than 21% of homes nearby

Living area816 ft²
SmallerTypical 1,236 ft²Bigger

Bigger than 16% of homes nearby

Lot size0.54 ac
SmallerTypical 3.5 acBigger

Bigger than 7% of homes nearby

Year built1840
OlderTypical 1985Newer

Newer than 4% of homes nearby

How 9 Limestone Pl ranks against every home in each area.
MeasureThis homeUnion 04862Knox County
Estimated valuepricier than$182,91911% of homes5% of homes
Price per ft²pricier than$22421% of homes29% of homes
Living areabigger than816 ft²16% of homes9% of homes
Lot sizebigger than0.54 ac7% of homes29% of homes
Year builtnewer than18404% of homes4% of homes

About 9 Limestone Pl

How much is 9 Limestone Pl, Union, ME worth?

The TopHap Estimate for 9 Limestone Pl, Union, ME is $182,919 as of Aug 30, 2026. The likely range is $147,719 to $218,119. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 9 Limestone Pl, Union, ME last sell?

9 Limestone Pl, Union, ME last sold on Nov 30, 2018 for $105,000, according to the county's recorded deed.

How big is 9 Limestone Pl, Union, ME?

9 Limestone Pl, Union, ME has 3 bedrooms, 1 bathrooms, 816 square feet of living space and a 0.54-acre lot.

When was 9 Limestone Pl, Union, ME built?

9 Limestone Pl, Union, ME was built in 1840, making it 186 years old. It is a conventional home. The building has 2 stories.

What schools serve 9 Limestone Pl, Union, ME?

9 Limestone Pl, Union, ME is assigned to Union Elementary School (elementary), rated C; Medomak Valley High School (high), rated C+; Medomak Middle School (middle), rated B-. All sit in School Administrative District 40. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 9 Limestone Pl, Union, ME compare to other homes in Union 04862?

Among the 1,849 homes in Union 04862, it is worth more than 11% of them ($182,919 against a typical $326,505), its price per square foot is higher than 21% of them ($224 against a typical $297), it is bigger than 16% of them (816 ft² against a typical 1,236 ft²), its lot is bigger than 7% of them (0.54 ac against a typical 3.5 ac) and it is newer than 4% of them (1840 against a typical 1985). Measured against all of Knox County, it is worth more than 5% 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 9 Limestone Pl, Union, ME?

The 2025 property tax bill for 9 Limestone Pl, Union, ME was $3,679. The county assessed it at $276,600.

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