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Single Family ResidenceResidential
$2,733,918$668 / 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 76How 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

3 NEPTUNE LN

BIDDEFORD, ME 04005
6
Beds
5.5
Baths
4,090 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.
1948
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
13
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$2.7M
$2.1M low$3.4M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$42,809 (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.$2,865,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$2,064,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$800,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$2,850,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$2,261,760

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
CountyYORK
Lot (acres)The size of the land the home sits on, from county records.0.38
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Electric
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(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.

M
Biddeford Middle SchoolD
Middle · Grades 5–7 · 5.7 mi
E
Biddeford Primary SchoolD-
Elementary · Grades KG–2 · 5.9 mi
H
Biddeford High SchoolF
High · Grades 8–12 · 7.0 mi

District: Biddeford

Neighborhood · ZIP 04005These 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.93
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.97
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.89

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.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
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.26,162
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.486 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$73,803
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$90,161
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.47 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.57%

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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

3 Neptune Ln 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.

  • Among the most valuable homes in Biddeford 04005
  • Costs more per square foot than 88% of homes in Biddeford 04005
  • Bigger than 98% of homes in York County
  • Has a smaller lot than 68% of homes in York County
  • Older than 79% of homes in York County

What homes are worth in Biddeford 04005

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

This home
$287K$2.6M

This home is worth more than almost all homes in Biddeford 04005.

How it measures up in Biddeford 04005

The dot is this home. The mark in the middle is the typical home in Biddeford 04005.

Estimated value$2,733,918
CheaperTypical $539,580Pricier

Pricier than almost all homes nearby

Price per ft²$668
CheaperTypical $394Pricier

Pricier than 88% of homes nearby

Living area4,090 ft²
SmallerTypical 1,543 ft²Bigger

Bigger than 96% of homes nearby

Lot size0.38 ac
SmallerTypical 0.4 acBigger

Bigger than 49% of homes nearby

Year built1948
OlderTypical 1965Newer

Newer than 38% of homes nearby

How 3 Neptune Ln ranks against every home in each area.
MeasureThis homeBiddeford 04005York County
Estimated valuepricier than$2,733,918almost all homesalmost all homes
Price per ft²pricier than$66888% of homes87% of homes
Living areabigger than4,090 ft²96% of homes98% of homes
Lot sizebigger than0.38 ac49% of homes32% of homes
Year builtnewer than194838% of homes21% of homes

About 3 Neptune Ln

How much is 3 Neptune Ln, Biddeford, ME worth?

The TopHap Estimate for 3 Neptune Ln, Biddeford, ME is $2,733,918 as of Sep 24, 2026. The likely range is $2,070,140 to $3,397,696. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3 Neptune Ln, Biddeford, ME last sell?

3 Neptune Ln, Biddeford, ME last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 3 Neptune Ln, Biddeford, ME?

3 Neptune Ln, Biddeford, ME has 6 bedrooms, 5.5 bathrooms, 4,090 square feet of living space and a 0.38-acre lot.

When was 3 Neptune Ln, Biddeford, ME built?

3 Neptune Ln, Biddeford, ME was built in 1948, making it 78 years old. It is a conventional home. The building has 2 stories.

What schools serve 3 Neptune Ln, Biddeford, ME?

3 Neptune Ln, Biddeford, ME is assigned to Biddeford Middle School (middle), rated D; Biddeford Primary School (elementary), rated D-; Biddeford High School (high), rated F. All sit in Biddeford. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3 Neptune Ln, Biddeford, ME compare to other homes in Biddeford 04005?

Among the 7,483 homes in Biddeford 04005, it is worth more than almost all of them ($2,733,918 against a typical $539,580), its price per square foot is higher than 88% of them ($668 against a typical $394), it is bigger than 96% of them (4,090 ft² against a typical 1,543 ft²), its lot is bigger than 49% of them (0.38 ac against a typical 0.4 ac) and it is newer than 38% of them (1948 against a typical 1965). Measured against all of York County, it is worth more than almost all 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 3 Neptune Ln, Biddeford, ME?

The 2025 property tax bill for 3 Neptune Ln, Biddeford, ME was $42,809. The county assessed it at $2,865,400.

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