Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$536,725$399 / 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 83How 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

18 ALDER DR

SOUTH BERWICK, ME 03908
3
Beds
1.5
Baths
1,344 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.
0.38 ac
Lot SizeThe size of the land the home sits on, from county records.
1987
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$537K
$444K low$629K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,759 (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.$460,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$199,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$260,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$390,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$408,975

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyYORK
Lot (acres)The size of the land the home sits on, from county records.0.38
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.Hot Water
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Central SchoolA-
Elementary · Grades PK–3 · 1.4 mi
H
Marshwood High SchoolA
High · Grades 9–12 · 2.3 mi
M
Marshwood Middle SchoolA-
Middle · Grades 7–8 · 5.5 mi

District: School Administrative District 35

Neighborhood · ZIP 03908These 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.39
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.106
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.95

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.0%
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.7,932
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.243 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$98,999
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$113,730
Average tempThe average temperature here across a full year.47°F
Annual precipHow much rain and melted snow falls here in a typical year.46 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.57%

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

18 Alder Dr 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.

  • Costs more per square foot than 66% of homes in South Berwick 03908
  • Has a smaller lot than 79% of homes in South Berwick 03908

What homes are worth in South Berwick 03908

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

This home
$167K$860K

This home is worth more than 57% of homes in South Berwick 03908.

How it measures up in South Berwick 03908

The dot is this home. The mark in the middle is the typical home in South Berwick 03908.

Estimated value$536,725
CheaperTypical $514,969Pricier

Pricier than 57% of homes nearby

Price per ft²$399
CheaperTypical $358Pricier

Pricier than 66% of homes nearby

Living area1,344 ft²
SmallerTypical 1,428 ft²Bigger

Bigger than 43% of homes nearby

Lot size0.38 ac
SmallerTypical 1 acBigger

Bigger than 21% of homes nearby

Year built1987
OlderTypical 1986Newer

Newer than 64% of homes nearby

How 18 Alder Dr ranks against every home in each area.
MeasureThis homeSouth Berwick 03908York County
Estimated valuepricier than$536,72557% of homes54% of homes
Price per ft²pricier than$39966% of homes55% of homes
Living areabigger than1,344 ft²43% of homes46% of homes
Lot sizebigger than0.38 ac21% of homes32% of homes
Year builtnewer than198764% of homes56% of homes

About 18 Alder Dr

How much is 18 Alder Dr, South Berwick, ME worth?

The TopHap Estimate for 18 Alder Dr, South Berwick, ME is $536,725 as of Sep 24, 2026. The likely range is $444,238 to $629,212. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 Alder Dr, South Berwick, ME last sell?

18 Alder Dr, South Berwick, ME last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 18 Alder Dr, South Berwick, ME?

18 Alder Dr, South Berwick, ME has 3 bedrooms, 1.5 bathrooms, 1,344 square feet of living space and a 0.38-acre lot.

When was 18 Alder Dr, South Berwick, ME built?

18 Alder Dr, South Berwick, ME was built in 1987, making it 39 years old. The building has 2 stories.

What schools serve 18 Alder Dr, South Berwick, ME?

18 Alder Dr, South Berwick, ME is assigned to Central School (elementary), rated A-; Marshwood High School (high), rated A; Marshwood Middle School (middle), rated A-. All sit in School Administrative District 35. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18 Alder Dr, South Berwick, ME compare to other homes in South Berwick 03908?

Among the 2,708 homes in South Berwick 03908, it is worth more than 57% of them ($536,725 against a typical $514,969), its price per square foot is higher than 66% of them ($399 against a typical $358), it is bigger than 43% of them (1,344 ft² against a typical 1,428 ft²), its lot is bigger than 21% of them (0.38 ac against a typical 1 ac) and it is newer than 64% of them (1987 against a typical 1986). Measured against all of York County, it is worth more than 54% 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 18 Alder Dr, South Berwick, ME?

The 2025 property tax bill for 18 Alder Dr, South Berwick, ME was $5,759. The county assessed it at $460,000.

More homes on Alder Dr

Closest homes

More homes in South Berwick 03908

Assigned schools

Explore the area

See this home in context

Open 18 Alder Dr 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