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Single Family ResidenceResidential
$159,910$75 / 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 70How 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

21 RIVER RD

DETROIT, ME 04929
4
Beds
1.5
Baths
2,128 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.
3.6 ac
Lot SizeThe size of the land the home sits on, from county records.
1985
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$160K
$112K low$208K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,141 (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.$72,700 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$30,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$42,100

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.7 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%

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
CountySOMERSET
Lot (acres)The size of the land the home sits on, from county records.3.60
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
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

M
Warsaw Middle SchoolC+
Middle · Grades 5–8 · 2.4 mi
E
Vickery SchoolC+
Elementary · Grades 1–4 · 2.5 mi

District: School Administrative District 53

Neighborhood · ZIP 04929These 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.67
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.71
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.69

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.4.8%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.907
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.45 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$47,110
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$53,091
Average tempThe average temperature here across a full year.43°F
Annual precipHow much rain and melted snow falls here in a typical year.43 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

21 River Rd 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 Somerset County
  • Costs less per square foot than 97% of homes in Somerset County
  • Bigger than 87% of homes in Somerset County
  • Has a bigger lot than 66% of homes in Somerset County
  • Newer than 65% of homes in Detroit 04929

What homes are worth in Detroit 04929

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

This home
$51K$429K

This home is worth more than 45% of homes in Detroit 04929.

How it measures up in Detroit 04929

The dot is this home. The mark in the middle is the typical home in Detroit 04929.

Estimated value$159,910
CheaperTypical $177,821Pricier

Pricier than 45% of homes nearby

Price per ft²$75
CheaperTypical $145Pricier

Pricier than 14% of homes nearby

Living area2,128 ft²
SmallerTypical 1,440 ft²Bigger

Bigger than 80% of homes nearby

Lot size3.6 ac
SmallerTypical 3.3 acBigger

Bigger than 54% of homes nearby

Year built1985
OlderTypical 1973Newer

Newer than 65% of homes nearby

How 21 River Rd ranks against every home in each area.
MeasureThis homeDetroit 04929Somerset County
Estimated valuepricier than$159,91045% of homes24% of homes
Price per ft²pricier than$7514% of homes3% of homes
Living areabigger than2,128 ft²80% of homes87% of homes
Lot sizebigger than3.6 ac54% of homes66% of homes
Year builtnewer than198565% of homes64% of homes

About 21 River Rd

How much is 21 River Rd, Detroit, ME worth?

The TopHap Estimate for 21 River Rd, Detroit, ME is $159,910 as of Sep 24, 2026. The likely range is $111,817 to $208,003. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 River Rd, Detroit, ME last sell?

21 River Rd, Detroit, ME last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 21 River Rd, Detroit, ME?

21 River Rd, Detroit, ME has 4 bedrooms, 1.5 bathrooms, 2,128 square feet of living space and a 3.60-acre lot.

When was 21 River Rd, Detroit, ME built?

21 River Rd, Detroit, ME was built in 1985, making it 41 years old. The building has 2 stories.

What schools serve 21 River Rd, Detroit, ME?

21 River Rd, Detroit, ME is assigned to Warsaw Middle School (middle), rated C+; Vickery School (elementary), rated C+. All sit in School Administrative District 53. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 River Rd, Detroit, ME compare to other homes in Detroit 04929?

Among the 326 homes in Detroit 04929, it is worth more than 45% of them ($159,910 against a typical $177,821), its price per square foot is higher than 14% of them ($75 against a typical $145), it is bigger than 80% of them (2,128 ft² against a typical 1,440 ft²), its lot is bigger than 54% of them (3.6 ac against a typical 3.3 ac) and it is newer than 65% of them (1985 against a typical 1973). Measured against all of Somerset 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 21 River Rd, Detroit, ME?

The 2025 property tax bill for 21 River Rd, Detroit, ME was $1,141. The county assessed it at $72,700.

More homes on River Rd

Closest homes

More homes in Detroit 04929

Assigned schools

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