Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$459,359$382 / 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 Jul 14, 2026

21 LINDEN ST

ROCKLAND, ME 04841
2
Beds
1.5
Baths
1,203 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.
4,347 ft²
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.

Valuation

$459K
$398K low$521K high
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.$459,359
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$367,487

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,589 (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.$397,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$138,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$258,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$218,700

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
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.1972
Lot (acres)The size of the land the home sits on, from county records.0.10
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
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(1)

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
South SchoolC+
Elementary · Grades KG–5 · 0.5 mi
H
Oceanside High SchoolD
High · Grades 9–12 · 1.4 mi
M
Oceanside Middle SchoolB-
Middle · Grades 6–8 · 4.1 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%

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

21 Linden 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 76% of homes in Rockland 04841
  • Costs more per square foot than 91% of homes in Rockland 04841
  • Smaller than 69% of homes in Knox County
  • Has a smaller lot than 98% of homes in Knox County
  • Older than 77% of homes in Knox County

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
$159K$915K

This home is worth more than 76% 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$459,359
CheaperTypical $345,326Pricier

Pricier than 76% of homes nearby

Price per ft²$382
CheaperTypical $244Pricier

Pricier than 91% of homes nearby

Living area1,203 ft²
SmallerTypical 1,461 ft²Bigger

Bigger than 32% of homes nearby

Lot size4,347 ft²
SmallerTypical 0.27 acBigger

Bigger than 6% of homes nearby

Year built1900
OlderTypical 1925Newer

Newer than 44% of homes nearby

How 21 Linden St ranks against every home in each area.
MeasureThis homeRockland 04841Knox County
Estimated valuepricier than$459,35976% of homes59% of homes
Price per ft²pricier than$38291% of homes74% of homes
Living areabigger than1,203 ft²32% of homes31% of homes
Lot sizebigger than4,347 ft²6% of homes2% of homes
Year builtnewer than190044% of homes23% of homes

About 21 Linden St

How much is 21 Linden St, Rockland, ME worth?

The TopHap Estimate for 21 Linden St, Rockland, ME is $459,359 as of Jul 14, 2026. The likely range is $398,110 to $520,608. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Linden St, Rockland, ME last sell?

21 Linden St, Rockland, ME last sold on Oct 13, 2023, according to the county's recorded deed.

How big is 21 Linden St, Rockland, ME?

21 Linden St, Rockland, ME has 2 bedrooms, 1.5 bathrooms, 1,203 square feet of living space and a 0.10-acre lot.

When was 21 Linden St, Rockland, ME built?

21 Linden St, Rockland, ME was built in 1900, making it 126 years old. It is a conventional home. The building has 2 stories.

What schools serve 21 Linden St, Rockland, ME?

21 Linden St, Rockland, ME is assigned to South School (elementary), rated C+; Oceanside High School (high), rated D; 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 Linden St, Rockland, ME compare to other homes in Rockland 04841?

Among the 2,704 homes in Rockland 04841, it is worth more than 76% of them ($459,359 against a typical $345,326), its price per square foot is higher than 91% of them ($382 against a typical $244), it is bigger than 32% of them (1,203 ft² against a typical 1,461 ft²), its lot is bigger than 6% of them (4,347 ft² against a typical 0.27 ac) and it is newer than 44% of them (1900 against a typical 1925). Measured against all of Knox County, it is worth more than 59% 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 Linden St, Rockland, ME?

The 2025 property tax bill for 21 Linden St, Rockland, ME was $6,589. The county assessed it at $397,400.

More homes on Linden St

Closest homes

More homes in Rockland 04841

Assigned schools

Explore the area

See this home in context

Open 21 Linden St 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