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Single Family ResidentialResidential
$648,207$1,066 / 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 85How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $175,000 on Nov 8, 2023

40 MAYO ST

BELFAST, ME 04915
3
Beds
3
Baths
608 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.
0.35 ac
Lot SizeThe size of the land the home sits on, from county records.
1870
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

$648K
$550K low$747K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$175,000 · Nov 8, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,587 (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.$525,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$182,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$343,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$522,100

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
CountyWALDO
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.2008
Lot (acres)The size of the land the home sits on, from county records.0.35
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.Metal
HeatingThe type of heating system in the home.Hot Water
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(5)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Neighborhood · ZIP 04915These 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.124
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 100.56

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.85%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.17%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.7%
PopulationHow many people live in this area.9,507
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.119 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$55,225
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$81,885
Average tempThe average temperature here across a full year.45°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.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

40 Mayo 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 92% of homes in Waldo County
  • Costs more per square foot than 97% of homes in Waldo County
  • Smaller than 92% of homes in Waldo County
  • Has a smaller lot than 92% of homes in Waldo County
  • Older than 92% of homes in Waldo County

What homes are worth in Belfast 04915

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

This home
$80K$1.1M

This home is worth more than 87% of homes in Belfast 04915.

How it measures up in Belfast 04915

The dot is this home. The mark in the middle is the typical home in Belfast 04915.

Estimated value$648,207
CheaperTypical $363,094Pricier

Pricier than 87% of homes nearby

Price per ft²$1066
CheaperTypical $413Pricier

Pricier than 94% of homes nearby

Living area608 ft²
SmallerTypical 956 ft²Bigger

Bigger than 12% of homes nearby

Lot size0.35 ac
SmallerTypical 1.2 acBigger

Bigger than 21% of homes nearby

Year built1870
OlderTypical 1973Newer

Newer than 9% of homes nearby

How 40 Mayo St ranks against every home in each area.
MeasureThis homeBelfast 04915Waldo County
Estimated valuepricier than$648,20787% of homes92% of homes
Price per ft²pricier than$106694% of homes97% of homes
Living areabigger than608 ft²12% of homes8% of homes
Lot sizebigger than0.35 ac21% of homes8% of homes
Year builtnewer than18709% of homes8% of homes

About 40 Mayo St

How much is 40 Mayo St, Belfast, ME worth?

The TopHap Estimate for 40 Mayo St, Belfast, ME is $648,207 as of Oct 21, 2026. The likely range is $549,712 to $746,702. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 40 Mayo St, Belfast, ME last sell?

40 Mayo St, Belfast, ME last sold on Nov 8, 2023 for $175,000, according to the county's recorded deed.

How big is 40 Mayo St, Belfast, ME?

40 Mayo St, Belfast, ME has 3 bedrooms, 3 bathrooms, 608 square feet of living space and a 0.35-acre lot.

When was 40 Mayo St, Belfast, ME built?

40 Mayo St, Belfast, ME was built in 1870, making it 156 years old. It is a conventional home. The building has 2 stories.

How does 40 Mayo St, Belfast, ME compare to other homes in Belfast 04915?

Among the 3,841 homes in Belfast 04915, it is worth more than 87% of them ($648,207 against a typical $363,094), its price per square foot is higher than 94% of them ($1066 against a typical $413), it is bigger than 12% of them (608 ft² against a typical 956 ft²), its lot is bigger than 21% of them (0.35 ac against a typical 1.2 ac) and it is newer than 9% of them (1870 against a typical 1973). Measured against all of Waldo County, it is worth more than 92% 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 40 Mayo St, Belfast, ME?

The 2025 property tax bill for 40 Mayo St, Belfast, ME was $8,587. The county assessed it at $525,500.

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