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Single Family ResidenceResidential
$315,683$155 / 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 $133,500 on Jun 17, 2008

21 PROSPECT ST

TOPSHAM, ME 04086
2
Beds
2.5
Baths
2,040 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.
0.19 ac
Lot SizeThe size of the land the home sits on, from county records.
1890
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

$316K
$277K low$355K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$133,500 · Jun 17, 2008
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.$195,683
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$156,546
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.37%
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.$100,000
BANK OF AMERICA NA · recorded Feb 18, 2026
2nd 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.$20,000
ATLANTIC REGIONAL FCU

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,186 (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.$327,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$69,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$257,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$321,900

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
CountySAGADAHOC
Lot (acres)The size of the land the home sits on, from county records.0.19
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(4)

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
Woodside Elementary SchoolA
Elementary · Grades KG–5 · 0.8 mi
H
Mt Ararat High SchoolC
High · Grades 9–12 · 1.7 mi
M
Mt Ararat Middle SchoolB-
Middle · Grades 6–8 · 2.0 mi

District: School Administrative District 75

Neighborhood · ZIP 04086These 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.103
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.95
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.77

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.95%
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.9.2%
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.9,915
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.276 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$80,148
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$97,185
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

21 Prospect 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 less than 74% of homes in Topsham 04086
  • Costs less per square foot than 96% of homes in Topsham 04086
  • Bigger than 81% of homes in Topsham 04086
  • Has a smaller lot than 97% of homes in Topsham 04086
  • Older than 94% of homes in Topsham 04086

What homes are worth in Topsham 04086

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

This home
$213K$759K

This home is worth more than 26% of homes in Topsham 04086.

How it measures up in Topsham 04086

The dot is this home. The mark in the middle is the typical home in Topsham 04086.

Estimated value$315,683
CheaperTypical $399,951Pricier

Pricier than 26% of homes nearby

Price per ft²$155
CheaperTypical $273Pricier

Pricier than 4% of homes nearby

Living area2,040 ft²
SmallerTypical 1,450 ft²Bigger

Bigger than 81% of homes nearby

Lot size0.19 ac
SmallerTypical 0.86 acBigger

Bigger than 3% of homes nearby

Year built1890
OlderTypical 1985Newer

Newer than 6% of homes nearby

How 21 Prospect St ranks against every home in each area.
MeasureThis homeTopsham 04086Sagadahoc County
Estimated valuepricier than$315,68326% of homes30% of homes
Price per ft²pricier than$1554% of homes6% of homes
Living areabigger than2,040 ft²81% of homes80% of homes
Lot sizebigger than0.19 ac3% of homes11% of homes
Year builtnewer than18906% of homes14% of homes

About 21 Prospect St

How much is 21 Prospect St, Topsham, ME worth?

The TopHap Estimate for 21 Prospect St, Topsham, ME is $315,683 as of Jul 14, 2026. The likely range is $276,865 to $354,501. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Prospect St, Topsham, ME last sell?

21 Prospect St, Topsham, ME last sold on Jun 17, 2008 for $133,500, according to the county's recorded deed.

How big is 21 Prospect St, Topsham, ME?

21 Prospect St, Topsham, ME has 2 bedrooms, 2.5 bathrooms, 2,040 square feet of living space and a 0.19-acre lot.

When was 21 Prospect St, Topsham, ME built?

21 Prospect St, Topsham, ME was built in 1890, making it 136 years old. It is a conventional home. The building has 2 stories.

What schools serve 21 Prospect St, Topsham, ME?

21 Prospect St, Topsham, ME is assigned to Woodside Elementary School (elementary), rated A; Mt Ararat High School (high), rated C; Mt Ararat Middle School (middle), rated B-. All sit in School Administrative District 75. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Prospect St, Topsham, ME compare to other homes in Topsham 04086?

Among the 3,966 homes in Topsham 04086, it is worth more than 26% of them ($315,683 against a typical $399,951), its price per square foot is higher than 4% of them ($155 against a typical $273), it is bigger than 81% of them (2,040 ft² against a typical 1,450 ft²), its lot is bigger than 3% of them (0.19 ac against a typical 0.86 ac) and it is newer than 6% of them (1890 against a typical 1985). Measured against all of Sagadahoc County, it is worth more than 30% 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 Prospect St, Topsham, ME?

The 2025 property tax bill for 21 Prospect St, Topsham, ME was $4,186. The county assessed it at $327,000.

Closest homes

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Assigned schools

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