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Single Family ResidenceResidential
$485,928$128 / 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 92How 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

640 DART RD

MASON, MI 48854
3
Beds
3.5
Baths
3,808 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.
7 ac
Lot SizeThe size of the land the home sits on, from county records.
1965
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$486K
$448K low$524K high

Tax & Assessment

Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$248,700 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$42,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$205,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$248,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$497,400

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyINGHAM
Lot (acres)The size of the land the home sits on, from county records.7.00
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.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
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
Mason Middle SchoolB+
Middle · Grades 6–8 · 2.5 mi
H
Mason High SchoolA-
High · Grades 9–12 · 2.5 mi
E
Alaiedon Elementary SchoolA-
Elementary · Grades PK–5 · 2.6 mi

District: Mason Public Schools

Neighborhood · ZIP 48854These 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.59
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.80
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.25

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.22,123
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.198 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$87,329
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$104,956
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.33 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.51%

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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

640 Dart 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 more than 93% of homes in Ingham County
  • Costs less per square foot than 93% of homes in Mason 48854
  • Among the largest homes in Mason 48854
  • Has a bigger lot than 94% of homes in Ingham County
  • Older than 65% of homes in Mason 48854

What homes are worth in Mason 48854

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

This home
$46K$642K

This home is worth more than 92% of homes in Mason 48854.

How it measures up in Mason 48854

The dot is this home. The mark in the middle is the typical home in Mason 48854.

Estimated value$485,928
CheaperTypical $277,238Pricier

Pricier than 92% of homes nearby

Price per ft²$128
CheaperTypical $180Pricier

Pricier than 7% of homes nearby

Living area3,808 ft²
SmallerTypical 1,584 ft²Bigger

Bigger than almost all homes nearby

Lot size7 ac
SmallerTypical 1 acBigger

Bigger than 84% of homes nearby

Year built1965
OlderTypical 1977Newer

Newer than 35% of homes nearby

How 640 Dart Rd ranks against every home in each area.
MeasureThis homeMason 48854Ingham County
Estimated valuepricier than$485,92892% of homes93% of homes
Price per ft²pricier than$1287% of homes28% of homes
Living areabigger than3,808 ft²almost all homes98% of homes
Lot sizebigger than7 ac84% of homes94% of homes
Year builtnewer than196535% of homes56% of homes

About 640 Dart Rd

How much is 640 Dart Rd, Mason, MI worth?

The TopHap Estimate for 640 Dart Rd, Mason, MI is $485,928 as of Sep 24, 2026. The likely range is $448,191 to $523,665. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 640 Dart Rd, Mason, MI last sell?

640 Dart Rd, Mason, MI last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 640 Dart Rd, Mason, MI?

640 Dart Rd, Mason, MI has 3 bedrooms, 3.5 bathrooms, 3,808 square feet of living space and a 7.00-acre lot.

When was 640 Dart Rd, Mason, MI built?

640 Dart Rd, Mason, MI was built in 1965, making it 61 years old. The building has 1 story.

What schools serve 640 Dart Rd, Mason, MI?

640 Dart Rd, Mason, MI is assigned to Mason Middle School (middle), rated B+; Mason High School (high), rated A-; Alaiedon Elementary School (elementary), rated A-. All sit in Mason Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 640 Dart Rd, Mason, MI compare to other homes in Mason 48854?

Among the 7,236 homes in Mason 48854, it is worth more than 92% of them ($485,928 against a typical $277,238), its price per square foot is higher than 7% of them ($128 against a typical $180), it is bigger than almost all of them (3,808 ft² against a typical 1,584 ft²), its lot is bigger than 84% of them (7 ac against a typical 1 ac) and it is newer than 35% of them (1965 against a typical 1977). Measured against all of Ingham County, it is worth more than 93% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

More homes on Dart Rd

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Assigned schools

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