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Single Family ResidenceResidential
$407,997$282 / 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 87How 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 $304,000 on Jul 17, 2020

54 UNION ST

WARREN, ME 04864
3
Beds
2
Baths
1,446 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.
0.75 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.
1
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

$408K
$355K low$461K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$304,000 · Jul 17, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,044 (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.$284,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$84,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$200,300

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.77 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.1 percent flood zone

Scores 0–100; higher = greater projected risk.

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
CountyKNOX
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.1987
Lot (acres)The size of the land the home sits on, from county records.0.75
ConstructionThe main material the home's frame and walls are built from.Brick
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
Warren Community SchoolD+
Elementary · Grades PK–6 · 0.4 mi
H
Medomak Valley High SchoolC
High · Grades 9–12 · 3.4 mi
M
Medomak Middle SchoolD+
Middle · Grades 7–8 · 3.4 mi

District: School Administrative District 40

Neighborhood · ZIP 04864These 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.56
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.79
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.54

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.88%
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.5.3%
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.4,804
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.101 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$83,709
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$101,350
Average tempThe average temperature here across a full year.45°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

54 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.

  • Costs less per square foot than 65% of homes in Knox County
  • Has a smaller lot than 88% of homes in Warren 04864
  • Older than 93% of homes in Warren 04864

What homes are worth in Warren 04864

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

This home
$200K$728K

This home is worth more than 63% of homes in Warren 04864.

How it measures up in Warren 04864

The dot is this home. The mark in the middle is the typical home in Warren 04864.

Estimated value$407,997
CheaperTypical $373,805Pricier

Pricier than 63% of homes nearby

Price per ft²$282
CheaperTypical $280Pricier

Pricier than 51% of homes nearby

Living area1,446 ft²
SmallerTypical 1,382 ft²Bigger

Bigger than 55% of homes nearby

Lot size0.75 ac
SmallerTypical 1.75 acBigger

Bigger than 12% of homes nearby

Year built1870
OlderTypical 1987Newer

Newer than 7% of homes nearby

How 54 Union St ranks against every home in each area.
MeasureThis homeWarren 04864Knox County
Estimated valuepricier than$407,99763% of homes42% of homes
Price per ft²pricier than$28251% of homes35% of homes
Living areabigger than1,446 ft²55% of homes47% of homes
Lot sizebigger than0.75 ac12% of homes36% of homes
Year builtnewer than18707% of homes10% of homes

About 54 Union St

How much is 54 Union St, Warren, ME worth?

The TopHap Estimate for 54 Union St, Warren, ME is $407,997 as of Sep 24, 2026. The likely range is $355,248 to $460,746. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 54 Union St, Warren, ME last sell?

54 Union St, Warren, ME last sold on Jul 17, 2020 for $304,000, according to the county's recorded deed.

How big is 54 Union St, Warren, ME?

54 Union St, Warren, ME has 3 bedrooms, 2 bathrooms, 1,446 square feet of living space and a 0.75-acre lot.

When was 54 Union St, Warren, ME built?

54 Union St, Warren, ME was built in 1870, making it 156 years old. It is a conventional home. The building has 1 story.

What schools serve 54 Union St, Warren, ME?

54 Union St, Warren, ME is assigned to Warren Community School (elementary), rated D+; Medomak Valley High School (high), rated C; Medomak Middle School (middle), rated D+. All sit in School Administrative District 40. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 54 Union St, Warren, ME compare to other homes in Warren 04864?

Among the 1,903 homes in Warren 04864, it is worth more than 63% of them ($407,997 against a typical $373,805), its price per square foot is higher than 51% of them ($282 against a typical $280), it is bigger than 55% of them (1,446 ft² against a typical 1,382 ft²), its lot is bigger than 12% of them (0.75 ac against a typical 1.75 ac) and it is newer than 7% of them (1870 against a typical 1987). Measured against all of Knox County, it is worth more than 42% 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 54 Union St, Warren, ME?

The 2025 property tax bill for 54 Union St, Warren, ME was $4,044. The county assessed it at $284,800.

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