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Single Family ResidenceResidential
$275,249$107 / 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

21730 POTOMAC ST

SOUTHFIELD, MI 48076
2.5
Baths
2,573 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.
0.21 ac
Lot SizeThe size of the land the home sits on, from county records.
1963
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$275K
$234K low$317K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,789 (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.$158,340 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$34,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$123,840
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$132,530
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$316,680

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.Colonial
CountyOAKLAND
Lot (acres)The size of the land the home sits on, from county records.0.21
ConstructionThe main material the home's frame and walls are built from.Brick
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 48 ft²

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

E
Birney K-8 SchoolD-
Elementary · Grades KG–8 · 1.0 mi
H
Southfield High School for the Arts & TechnologyF
High · Grades 9–12 · 1.9 mi

District: Southfield Public School District

Neighborhood · ZIP 48076These 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.78
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.95
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.22

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.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.26,362
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,709 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$87,759
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$110,588
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.32 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.53%

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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

21730 Potomac 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 less than 71% of homes in Oakland County
  • Costs less per square foot than 97% of homes in Oakland County
  • Bigger than 94% of homes in Southfield 48076
  • Has a smaller lot than 69% of homes in Oakland County

What homes are worth in Southfield 48076

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

This home
$111K$419K

This home is worth more than 52% of homes in Southfield 48076.

How it measures up in Southfield 48076

The dot is this home. The mark in the middle is the typical home in Southfield 48076.

Estimated value$275,249
CheaperTypical $271,749Pricier

Pricier than 52% of homes nearby

Price per ft²$107
CheaperTypical $159Pricier

Pricier than 4% of homes nearby

Living area2,573 ft²
SmallerTypical 1,677 ft²Bigger

Bigger than 94% of homes nearby

Lot size0.21 ac
SmallerTypical 0.22 acBigger

Bigger than 40% of homes nearby

Year built1963
OlderTypical 1964Newer

Newer than 48% of homes nearby

How 21730 Potomac St ranks against every home in each area.
MeasureThis homeSouthfield 48076Oakland County
Estimated valuepricier than$275,24952% of homes29% of homes
Price per ft²pricier than$1074% of homes3% of homes
Living areabigger than2,573 ft²94% of homes79% of homes
Lot sizebigger than0.21 ac40% of homes31% of homes
Year builtnewer than196348% of homes39% of homes

About 21730 Potomac St

How much is 21730 Potomac St, Southfield, MI worth?

The TopHap Estimate for 21730 Potomac St, Southfield, MI is $275,249 as of Oct 21, 2026. The likely range is $233,635 to $316,863. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21730 Potomac St, Southfield, MI last sell?

21730 Potomac St, Southfield, MI last sold on Oct 20, 2000, according to the county's recorded deed.

How big is 21730 Potomac St, Southfield, MI?

21730 Potomac St, Southfield, MI has 2.5 bathrooms, 2,573 square feet of living space and a 0.21-acre lot.

When was 21730 Potomac St, Southfield, MI built?

21730 Potomac St, Southfield, MI was built in 1963, making it 63 years old. It is a colonial home. The building has 2 stories.

What schools serve 21730 Potomac St, Southfield, MI?

21730 Potomac St, Southfield, MI is assigned to Birney K-8 School (elementary), rated D-; Southfield High School for the Arts & Technology (high), rated F. All sit in Southfield Public School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21730 Potomac St, Southfield, MI compare to other homes in Southfield 48076?

Among the 9,266 homes in Southfield 48076, it is worth more than 52% of them ($275,249 against a typical $271,749), its price per square foot is higher than 4% of them ($107 against a typical $159), it is bigger than 94% of them (2,573 ft² against a typical 1,677 ft²), its lot is bigger than 40% of them (0.21 ac against a typical 0.22 ac) and it is newer than 48% of them (1963 against a typical 1964). Measured against all of Oakland County, it is worth more than 29% 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 21730 Potomac St, Southfield, MI?

The 2025 property tax bill for 21730 Potomac St, Southfield, MI was $3,789. The county assessed it at $158,340.

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