Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$307,321$320 / 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 78How 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

21 ADMONTEM AVE

ROCKLAND, ME 04841
3
Beds
1
Baths
960 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.
0.27 ac
Lot SizeThe size of the land the home sits on, from county records.
1973
Year BuiltThe year the home was originally built, according to county records.
1
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

$307K
$240K low$375K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,568 (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.$335,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$97,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$237,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$150,600

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.Ranch
CountyKNOX
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1981
Lot (acres)The size of the land the home sits on, from county records.0.27
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
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.

H
Oceanside High SchoolD
High · Grades 9–12 · 0.3 mi
E
South SchoolC+
Elementary · Grades KG–5 · 1.2 mi
M
Oceanside Middle SchoolB-
Middle · Grades 6–8 · 4.3 mi

District: Regional School Unit 13

Neighborhood · ZIP 04841These 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.135
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.80
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.50

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.88%
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.17%
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.6,960
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.526 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$53,416
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$65,512
Average tempThe average temperature here across a full year.45°F
Annual precipHow much rain and melted snow falls here in a typical year.50 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.50%

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

21 Admontem Ave 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 76% of homes in Knox County
  • Costs more per square foot than 81% of homes in Rockland 04841
  • Smaller than 86% of homes in Rockland 04841
  • Has a smaller lot than 85% of homes in Knox County
  • Newer than 70% of homes in Rockland 04841

What homes are worth in Rockland 04841

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

This home
$161K$887K

This home is worth more than 32% of homes in Rockland 04841.

How it measures up in Rockland 04841

The dot is this home. The mark in the middle is the typical home in Rockland 04841.

Estimated value$307,321
CheaperTypical $354,995Pricier

Pricier than 32% of homes nearby

Price per ft²$320
CheaperTypical $253Pricier

Pricier than 81% of homes nearby

Living area960 ft²
SmallerTypical 1,454 ft²Bigger

Bigger than 14% of homes nearby

Lot size0.27 ac
SmallerTypical 0.26 acBigger

Bigger than 52% of homes nearby

Year built1973
OlderTypical 1925Newer

Newer than 70% of homes nearby

How 21 Admontem Ave ranks against every home in each area.
MeasureThis homeRockland 04841Knox County
Estimated valuepricier than$307,32132% of homes24% of homes
Price per ft²pricier than$32081% of homes47% of homes
Living areabigger than960 ft²14% of homes16% of homes
Lot sizebigger than0.27 ac52% of homes15% of homes
Year builtnewer than197370% of homes48% of homes

About 21 Admontem Ave

How much is 21 Admontem Ave, Rockland, ME worth?

The TopHap Estimate for 21 Admontem Ave, Rockland, ME is $307,321 as of Sep 24, 2026. The likely range is $239,883 to $374,759. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Admontem Ave, Rockland, ME last sell?

21 Admontem Ave, Rockland, ME last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 21 Admontem Ave, Rockland, ME?

21 Admontem Ave, Rockland, ME has 3 bedrooms, 1 bathrooms, 960 square feet of living space and a 0.27-acre lot.

When was 21 Admontem Ave, Rockland, ME built?

21 Admontem Ave, Rockland, ME was built in 1973, making it 53 years old. It is a ranch home. The building has 1 story.

What schools serve 21 Admontem Ave, Rockland, ME?

21 Admontem Ave, Rockland, ME is assigned to Oceanside High School (high), rated D; South School (elementary), rated C+; Oceanside Middle School (middle), rated B-. All sit in Regional School Unit 13. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Admontem Ave, Rockland, ME compare to other homes in Rockland 04841?

Among the 2,704 homes in Rockland 04841, it is worth more than 32% of them ($307,321 against a typical $354,995), its price per square foot is higher than 81% of them ($320 against a typical $253), it is bigger than 14% of them (960 ft² against a typical 1,454 ft²), its lot is bigger than 52% of them (0.27 ac against a typical 0.26 ac) and it is newer than 70% of them (1973 against a typical 1925). Measured against all of Knox County, it is worth more than 24% 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 21 Admontem Ave, Rockland, ME?

The 2025 property tax bill for 21 Admontem Ave, Rockland, ME was $5,568. The county assessed it at $335,800.

More homes on Admontem Ave

Closest homes

More homes in Rockland 04841

Assigned schools

Explore the area

See this home in context

Open 21 Admontem Ave 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