Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$997,855$598 / 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 95How 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 $975,000 on Jan 15, 2026

21 MAIN ST

ROCKPORT, ME 04856
2
Beds
1.5
Baths
1,668 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.
2,044 ft²
Lot SizeThe size of the land the home sits on, from county records.
1990
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

$998K
$946K low$1.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$975,000 · Jan 15, 2026
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.$522,855
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$418,284
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.48%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$475,000
MATTHEWHURLEY · recorded Jan 15, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$13,085 (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.$958,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$437,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$521,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$761,700

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.Cape Cod
CountyKNOX
Lot (acres)The size of the land the home sits on, from county records.0.05
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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
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(8)

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
Camden-Rockport Elementary SchoolA
Elementary · Grades PK–4 · 1.1 mi
H
Camden Hills Regional High SchoolA
High · Grades 9–12 · 1.4 mi
M
Camden-Rockport Middle SchoolA
Middle · Grades 5–8 · 1.7 mi

District: School Administrative District 28

Neighborhood · ZIP 04856These 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.111
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.77
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.53

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.81%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.3,784
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.158 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$82,890
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$102,265
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.Absentee owner
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 Main 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 91% of homes in Knox County
  • Costs more per square foot than 93% of homes in Knox County
  • Among the smallest lots in Rockport 04856
  • Newer than 69% of homes in Knox County

What homes are worth in Rockport 04856

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

This home
$197K$2M

This home is worth more than 85% of homes in Rockport 04856.

How it measures up in Rockport 04856

The dot is this home. The mark in the middle is the typical home in Rockport 04856.

Estimated value$997,855
CheaperTypical $632,611Pricier

Pricier than 85% of homes nearby

Price per ft²$598
CheaperTypical $358Pricier

Pricier than 86% of homes nearby

Living area1,668 ft²
SmallerTypical 1,817 ft²Bigger

Bigger than 42% of homes nearby

Lot size2,044 ft²
SmallerTypical 1.39 acBigger

Smaller than almost all homes nearby

Year built1990
OlderTypical 1982Newer

Newer than 64% of homes nearby

How 21 Main St ranks against every home in each area.
MeasureThis homeRockport 04856Knox County
Estimated valuepricier than$997,85585% of homes91% of homes
Price per ft²pricier than$59886% of homes93% of homes
Living areabigger than1,668 ft²42% of homes58% of homes
Lot sizebigger than2,044 ft²almost no homesalmost no homes
Year builtnewer than199064% of homes69% of homes

About 21 Main St

How much is 21 Main St, Rockport, ME worth?

The TopHap Estimate for 21 Main St, Rockport, ME is $997,855 as of Jul 14, 2026. The likely range is $945,621 to $1,050,089. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Main St, Rockport, ME last sell?

21 Main St, Rockport, ME last sold on Jan 15, 2026 for $975,000, according to the county's recorded deed.

How big is 21 Main St, Rockport, ME?

21 Main St, Rockport, ME has 2 bedrooms, 1.5 bathrooms, 1,668 square feet of living space and a 0.05-acre lot.

When was 21 Main St, Rockport, ME built?

21 Main St, Rockport, ME was built in 1990, making it 36 years old. It is a cape cod home. The building has 2 stories.

What schools serve 21 Main St, Rockport, ME?

21 Main St, Rockport, ME is assigned to Camden-Rockport Elementary School (elementary), rated A; Camden Hills Regional High School (high), rated A; Camden-Rockport Middle School (middle), rated A. All sit in School Administrative District 28. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Main St, Rockport, ME compare to other homes in Rockport 04856?

Among the 5,514 homes in Rockport 04856, it is worth more than 85% of them ($997,855 against a typical $632,611), its price per square foot is higher than 86% of them ($598 against a typical $358), it is bigger than 42% of them (1,668 ft² against a typical 1,817 ft²), its lot is bigger than almost none of them (2,044 ft² against a typical 1.39 ac) and it is newer than 64% of them (1990 against a typical 1982). Measured against all of Knox County, it is worth more than 91% 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 Main St, Rockport, ME?

The 2025 property tax bill for 21 Main St, Rockport, ME was $13,085. The county assessed it at $958,600.

More homes on Main St

Closest homes

More homes in Rockport 04856

Assigned schools

Explore the area

See this home in context

Open 21 Main 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