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Single Family ResidenceResidential
$495,996$193 / 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 89How 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 $218,000 on Apr 4, 1997

221 CARBON AVE

ROBERTS, MT 59070
3
Beds
2
Baths
2,568 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.
0.65 ac
Lot SizeThe size of the land the home sits on, from county records.
1923
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.
6
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$496K
$441K low$551K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$218,000 · Apr 4, 1997

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,823 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$471,100 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$471,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$471,100

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.Historical
CountyCARBON
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.1990
Lot (acres)The size of the land the home sits on, from county records.0.65
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
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 · 840 ft²Porch · 332 ft²

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

H
Roberts High SchoolA
High · Grades 9–12 · 0.1 mi
E
Roberts Elementary School
Elementary · Grades PK–6 · 0.1 mi
M
Roberts Junior High School
Middle · Grades 7–8 · 0.1 mi

District: Roberts K-12 Schools

Neighborhood · ZIP 59070These 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.113
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.46

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.80%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.15%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.4%
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.1,041
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.6 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$78,654
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$92,641
Average tempThe average temperature here across a full year.45°F
Annual precipHow much rain and melted snow falls here in a typical year.18 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.60%

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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

221 Carbon Ave 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 68% of homes in Roberts 59070
  • Costs less per square foot than 98% of homes in Roberts 59070
  • Bigger than 91% of homes in Carbon County
  • Has a smaller lot than 86% of homes in Roberts 59070
  • Older than 88% of homes in Roberts 59070

What homes are worth in Roberts 59070

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

This home
$282K$1.5M

This home is worth more than 32% of homes in Roberts 59070.

How it measures up in Roberts 59070

The dot is this home. The mark in the middle is the typical home in Roberts 59070.

Estimated value$495,996
CheaperTypical $602,332Pricier

Pricier than 32% of homes nearby

Price per ft²$193
CheaperTypical $410Pricier

Pricier than 2% of homes nearby

Living area2,568 ft²
SmallerTypical 1,464 ft²Bigger

Bigger than 89% of homes nearby

Lot size0.65 ac
SmallerTypical 5.19 acBigger

Bigger than 14% of homes nearby

Year built1923
OlderTypical 1995Newer

Newer than 12% of homes nearby

How 221 Carbon Ave ranks against every home in each area.
MeasureThis homeRoberts 59070Carbon County
Estimated valuepricier than$495,99632% of homes40% of homes
Price per ft²pricier than$1932% of homes5% of homes
Living areabigger than2,568 ft²89% of homes91% of homes
Lot sizebigger than0.65 ac14% of homes44% of homes
Year builtnewer than192312% of homes18% of homes

About 221 Carbon Ave

How much is 221 Carbon Ave, Roberts, MT worth?

The TopHap Estimate for 221 Carbon Ave, Roberts, MT is $495,996 as of Sep 24, 2026. The likely range is $440,926 to $551,066. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 221 Carbon Ave, Roberts, MT last sell?

221 Carbon Ave, Roberts, MT last sold on Apr 4, 1997 for $218,000, according to the county's recorded deed.

How big is 221 Carbon Ave, Roberts, MT?

221 Carbon Ave, Roberts, MT has 3 bedrooms, 2 bathrooms, 2,568 square feet of living space and a 0.65-acre lot.

When was 221 Carbon Ave, Roberts, MT built?

221 Carbon Ave, Roberts, MT was built in 1923, making it 103 years old. It is a historical home. The building has 2 stories.

What schools serve 221 Carbon Ave, Roberts, MT?

221 Carbon Ave, Roberts, MT is assigned to Roberts High School (high), rated A; Roberts Elementary School (elementary); Roberts Junior High School (middle). All sit in Roberts K-12 Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 221 Carbon Ave, Roberts, MT compare to other homes in Roberts 59070?

Among the 1,004 homes in Roberts 59070, it is worth more than 32% of them ($495,996 against a typical $602,332), its price per square foot is higher than 2% of them ($193 against a typical $410), it is bigger than 89% of them (2,568 ft² against a typical 1,464 ft²), its lot is bigger than 14% of them (0.65 ac against a typical 5.19 ac) and it is newer than 12% of them (1923 against a typical 1995). Measured against all of Carbon County, it is worth more than 40% 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 221 Carbon Ave, Roberts, MT?

The 2026 property tax bill for 221 Carbon Ave, Roberts, MT was $2,823. The county assessed it at $471,100.

More homes on Carbon Ave

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Assigned schools

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