Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$576,873$172 / 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 88How 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
Last sold for $490,000 on Oct 25, 2022

81 ROBBINS RD

UNION, ME 04862
5
Beds
3 / 2
Baths
3,345 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.
3.5 ac
Lot SizeThe size of the land the home sits on, from county records.
2002
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.

Valuation

$577K
$507K low$647K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$490,000 · Oct 25, 2022
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.$576,873
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$461,498

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,158 (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.$538,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$65,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$473,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$378,500

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.3.50
ConstructionThe main material the home's frame and walls are built from.Concrete
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
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.Deck

Transaction History(11)

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(1)

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 · 2.6 mi
H
Medomak Valley High SchoolC+
High · Grades 9–12 · 5.2 mi
M
Medomak Middle SchoolB-
Middle · Grades 7–8 · 5.3 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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

81 Robbins Rd 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 88% of homes in Union 04862
  • Costs less per square foot than 91% of homes in Union 04862
  • Bigger than 97% of homes in Union 04862
  • Has a bigger lot than 77% of homes in Knox County
  • Newer than 83% of homes in Knox County

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
$127K$846K

This home is worth more than 88% 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$576,873
CheaperTypical $344,592Pricier

Pricier than 88% of homes nearby

Price per ft²$172
CheaperTypical $310Pricier

Pricier than 9% of homes nearby

Living area3,345 ft²
SmallerTypical 1,240 ft²Bigger

Bigger than 97% of homes nearby

Lot size3.5 ac
SmallerTypical 3.5 acBigger

Bigger than 51% of homes nearby

Year built2002
OlderTypical 1985Newer

Newer than 79% of homes nearby

How 81 Robbins Rd ranks against every home in each area.
MeasureThis homeUnion 04862Knox County
Estimated valuepricier than$576,87388% of homes70% of homes
Price per ft²pricier than$1729% of homes12% of homes
Living areabigger than3,345 ft²97% of homes94% of homes
Lot sizebigger than3.5 ac51% of homes77% of homes
Year builtnewer than200279% of homes83% of homes

About 81 Robbins Rd

How much is 81 Robbins Rd, Union, ME worth?

The TopHap Estimate for 81 Robbins Rd, Union, ME is $576,873 as of Jul 14, 2026. The likely range is $507,217 to $646,529. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 81 Robbins Rd, Union, ME last sell?

81 Robbins Rd, Union, ME last sold on Oct 25, 2022 for $490,000, according to the county's recorded deed.

How big is 81 Robbins Rd, Union, ME?

81 Robbins Rd, Union, ME has 5 bedrooms, 3 bathrooms, 3,345 square feet of living space and a 3.50-acre lot.

When was 81 Robbins Rd, Union, ME built?

81 Robbins Rd, Union, ME was built in 2002, making it 24 years old. It is a conventional home. The building has 2 stories.

What schools serve 81 Robbins Rd, Union, ME?

81 Robbins Rd, 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 81 Robbins Rd, Union, ME compare to other homes in Union 04862?

Among the 1,849 homes in Union 04862, it is worth more than 88% of them ($576,873 against a typical $344,592), its price per square foot is higher than 9% of them ($172 against a typical $310), it is bigger than 97% of them (3,345 ft² against a typical 1,240 ft²), its lot is bigger than 51% of them (3.5 ac against a typical 3.5 ac) and it is newer than 79% of them (2002 against a typical 1985). Measured against all of Knox County, it is worth more than 70% 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 81 Robbins Rd, Union, ME?

The 2025 property tax bill for 81 Robbins Rd, Union, ME was $7,158. The county assessed it at $538,200.

Closest homes

More homes in Union 04862

Assigned schools

Explore the area

See this home in context

Open 81 Robbins Rd 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