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Single Family ResidentialResidential
$145,016$203 / 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 75How 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
Last sold for $500,000 on Oct 23, 2023

100 UNION ST

CALAIS, ME 04619
2
Beds
2
Baths
716 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.
0.25 ac
Lot SizeThe size of the land the home sits on, from county records.
1876
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$145K
$109K low$181K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$500,000 · Oct 23, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,221 (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.$84,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$14,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$69,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$77,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$107,065

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residential
StyleThe architectural style of the home, such as ranch or colonial.Conventional
CountyWASHINGTON
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.1995
Lot (acres)The size of the land the home sits on, from county records.0.25
ConstructionThe main material the home's frame and walls are built from.Concrete
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

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
Calais Elementary SchoolB-
Elementary · Grades PK–6 · 0.6 mi
H
Calais Middle/High SchoolC
High · Grades 9–12 · 2.6 mi

District: Calais

Neighborhood · ZIP 04619These 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.99
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.83
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.93

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.82%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.3,077
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.79 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$47,104
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$69,789
Average tempThe average temperature here across a full year.42°F
Annual precipHow much rain and melted snow falls here in a typical year.49 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.50%

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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

100 Union 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 76% of homes in Washington County
  • Smaller than 78% of homes in Washington County
  • Has a smaller lot than 88% of homes in Washington County
  • Older than 91% of homes in Washington County

What homes are worth in Calais 04619

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

This home
$34K$585K

This home is worth more than 30% of homes in Calais 04619.

How it measures up in Calais 04619

The dot is this home. The mark in the middle is the typical home in Calais 04619.

Estimated value$145,016
CheaperTypical $189,394Pricier

Pricier than 30% of homes nearby

Price per ft²$203
CheaperTypical $230Pricier

Pricier than 37% of homes nearby

Living area716 ft²
SmallerTypical 838 ft²Bigger

Bigger than 33% of homes nearby

Lot size0.25 ac
SmallerTypical 0.4 acBigger

Bigger than 29% of homes nearby

Year built1876
OlderTypical 1906Newer

Newer than 28% of homes nearby

How 100 Union St ranks against every home in each area.
MeasureThis homeCalais 04619Washington County
Estimated valuepricier than$145,01630% of homes24% of homes
Price per ft²pricier than$20337% of homes46% of homes
Living areabigger than716 ft²33% of homes22% of homes
Lot sizebigger than0.25 ac29% of homes12% of homes
Year builtnewer than187628% of homes9% of homes

About 100 Union St

How much is 100 Union St, Calais, ME worth?

The TopHap Estimate for 100 Union St, Calais, ME is $145,016 as of Sep 24, 2026. The likely range is $109,329 to $180,703. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 100 Union St, Calais, ME last sell?

100 Union St, Calais, ME last sold on Oct 23, 2023 for $500,000, according to the county's recorded deed.

How big is 100 Union St, Calais, ME?

100 Union St, Calais, ME has 2 bedrooms, 2 bathrooms, 716 square feet of living space and a 0.25-acre lot.

When was 100 Union St, Calais, ME built?

100 Union St, Calais, ME was built in 1876, making it 150 years old. It is a conventional home. The building has 2 stories.

What schools serve 100 Union St, Calais, ME?

100 Union St, Calais, ME is assigned to Calais Elementary School (elementary), rated B-; Calais Middle/High School (high), rated C. All sit in Calais. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 100 Union St, Calais, ME compare to other homes in Calais 04619?

Among the 1,324 homes in Calais 04619, it is worth more than 30% of them ($145,016 against a typical $189,394), its price per square foot is higher than 37% of them ($203 against a typical $230), it is bigger than 33% of them (716 ft² against a typical 838 ft²), its lot is bigger than 29% of them (0.25 ac against a typical 0.4 ac) and it is newer than 28% of them (1876 against a typical 1906). Measured against all of Washington County, it is worth more than 24% 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 100 Union St, Calais, ME?

The 2025 property tax bill for 100 Union St, Calais, ME was $1,221. The county assessed it at $84,200.

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Assigned schools

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