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CondominiumResidential
$357,390$203 / 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 98How 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

321 ASH CT

SOUTH LYON, MI 48178
3
Beds
2.5
Baths
1,757 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.
1 ac
Lot SizeThe size of the land the home sits on, from county records.
1998
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$357K
$350K low$364K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,518 (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.$179,100 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$178,630
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$358,200

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.32 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.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyOAKLAND
Lot (acres)The size of the land the home sits on, from county records.1.00
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
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.Deck · 210 ft²Patio · 210 ft²Porch · 35 ft²

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.

H
South Lyon High SchoolA+
High · Grades 9–12 · 0.4 mi
E
Frank E. Bartlett Elementary SchoolB+
Elementary · Grades KG–5 · 0.5 mi
M
Centennial Middle SchoolA-
Middle · Grades 6–8 · 1.5 mi

District: South Lyon Community Schools

Neighborhood · ZIP 48178These 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.64
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.23

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.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.2%
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.38,691
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.762 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$117,065
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$136,588
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.33 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.53%

Owner Tools

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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

321 Ash Ct 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 72% of homes in South Lyon 48178
  • Costs less per square foot than 71% of homes in South Lyon 48178
  • Smaller than 70% of homes in South Lyon 48178
  • Has a bigger lot than 85% of homes in Oakland County
  • Newer than 84% of homes in Oakland County

What homes are worth in South Lyon 48178

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

This home
$73K$1M

This home is worth more than 28% of homes in South Lyon 48178.

How it measures up in South Lyon 48178

The dot is this home. The mark in the middle is the typical home in South Lyon 48178.

Estimated value$357,390
CheaperTypical $491,016Pricier

Pricier than 28% of homes nearby

Price per ft²$203
CheaperTypical $222Pricier

Pricier than 29% of homes nearby

Living area1,757 ft²
SmallerTypical 2,270 ft²Bigger

Bigger than 30% of homes nearby

Lot size1 ac
SmallerTypical 0.43 acBigger

Bigger than 78% of homes nearby

Year built1998
OlderTypical 1997Newer

Newer than 54% of homes nearby

How 321 Ash Ct ranks against every home in each area.
MeasureThis homeSouth Lyon 48178Oakland County
Estimated valuepricier than$357,39028% of homes47% of homes
Price per ft²pricier than$20329% of homes40% of homes
Living areabigger than1,757 ft²30% of homes52% of homes
Lot sizebigger than1 ac78% of homes85% of homes
Year builtnewer than199854% of homes84% of homes

About 321 Ash Ct

How much is 321 Ash Ct, South Lyon, MI worth?

The TopHap Estimate for 321 Ash Ct, South Lyon, MI is $357,390 as of Oct 21, 2026. The likely range is $350,323 to $364,457. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 321 Ash Ct, South Lyon, MI last sell?

321 Ash Ct, South Lyon, MI last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 321 Ash Ct, South Lyon, MI?

321 Ash Ct, South Lyon, MI has 3 bedrooms, 2.5 bathrooms, 1,757 square feet of living space and a 1.00-acre lot.

When was 321 Ash Ct, South Lyon, MI built?

321 Ash Ct, South Lyon, MI was built in 1998, making it 28 years old. It is a ranch home. The building has 1 story.

What schools serve 321 Ash Ct, South Lyon, MI?

321 Ash Ct, South Lyon, MI is assigned to South Lyon High School (high), rated A+; Frank E. Bartlett Elementary School (elementary), rated B+; Centennial Middle School (middle), rated A-. All sit in South Lyon Community Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 321 Ash Ct, South Lyon, MI compare to other homes in South Lyon 48178?

Among the 13,301 homes in South Lyon 48178, it is worth more than 28% of them ($357,390 against a typical $491,016), its price per square foot is higher than 29% of them ($203 against a typical $222), it is bigger than 30% of them (1,757 ft² against a typical 2,270 ft²), its lot is bigger than 78% of them (1 ac against a typical 0.43 ac) and it is newer than 54% of them (1998 against a typical 1997). Measured against all of Oakland County, it is worth more than 47% 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 321 Ash Ct, South Lyon, MI?

The 2025 property tax bill for 321 Ash Ct, South Lyon, MI was $4,518. The county assessed it at $179,100.

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