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Single Family ResidenceResidential
$225,991$132 / 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 Aug 30, 2026
Last sold for $315,000 on Aug 3, 2022

22172 KNOLLWOOD DR

FLAT ROCK, MI 48134
3
Beds
1.5
Baths
1,715 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.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
1993
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$226K
$192K low$260K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$315,000 · Aug 3, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,800 (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.$159,900 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$156,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$319,800

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
CountyWAYNE
Lot (acres)The size of the land the home sits on, from county records.0.15
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.Patio · 668 ft²Porch · 44 ft²

Transaction History(4)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(1)

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

E
Bates Elementary SchoolA-
Elementary · Grades KG–5 · 1.3 mi
H
Woodhaven High SchoolA-
High · Grades 10–12 · 1.5 mi
M
Brownstown Middle SchoolB+
Middle · Grades 6–7 · 1.7 mi

District: Woodhaven-Brownstown School District

Neighborhood · ZIP 48134These 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.69
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.102
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.29

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.17%
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.1.7%
PopulationHow many people live in this area.21,097
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,174 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$87,393
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$98,467
Average tempThe average temperature here across a full year.50°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%

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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

22172 Knollwood Dr 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 68% of homes in Wayne County
  • Costs less per square foot than 83% of homes in Flat Rock 48134
  • Bigger than 74% of homes in Wayne County
  • Has a smaller lot than 91% of homes in Flat Rock 48134
  • Newer than 90% of homes in Wayne County

What homes are worth in Flat Rock 48134

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

This home
$73K$502K

This home is worth more than 34% of homes in Flat Rock 48134.

How it measures up in Flat Rock 48134

The dot is this home. The mark in the middle is the typical home in Flat Rock 48134.

Estimated value$225,991
CheaperTypical $269,050Pricier

Pricier than 34% of homes nearby

Price per ft²$132
CheaperTypical $155Pricier

Pricier than 17% of homes nearby

Living area1,715 ft²
SmallerTypical 1,732 ft²Bigger

Bigger than 48% of homes nearby

Lot size0.15 ac
SmallerTypical 0.22 acBigger

Bigger than 9% of homes nearby

Year built1993
OlderTypical 1997Newer

Newer than 43% of homes nearby

How 22172 Knollwood Dr ranks against every home in each area.
MeasureThis homeFlat Rock 48134Wayne County
Estimated valuepricier than$225,99134% of homes68% of homes
Price per ft²pricier than$13217% of homes49% of homes
Living areabigger than1,715 ft²48% of homes74% of homes
Lot sizebigger than0.15 ac9% of homes62% of homes
Year builtnewer than199343% of homes90% of homes

About 22172 Knollwood Dr

How much is 22172 Knollwood Dr, Flat Rock, MI worth?

The TopHap Estimate for 22172 Knollwood Dr, Flat Rock, MI is $225,991 as of Aug 30, 2026. The likely range is $192,270 to $259,712. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 22172 Knollwood Dr, Flat Rock, MI last sell?

22172 Knollwood Dr, Flat Rock, MI last sold on Aug 3, 2022 for $315,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 22172 Knollwood Dr, Flat Rock, MI?

22172 Knollwood Dr, Flat Rock, MI has 3 bedrooms, 1.5 bathrooms, 1,715 square feet of living space and a 0.15-acre lot.

When was 22172 Knollwood Dr, Flat Rock, MI built?

22172 Knollwood Dr, Flat Rock, MI was built in 1993, making it 33 years old. It is a colonial home. The building has 1 story.

What schools serve 22172 Knollwood Dr, Flat Rock, MI?

22172 Knollwood Dr, Flat Rock, MI is assigned to Bates Elementary School (elementary), rated A-; Woodhaven High School (high), rated A-; Brownstown Middle School (middle), rated B+. All sit in Woodhaven-Brownstown School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 22172 Knollwood Dr, Flat Rock, MI compare to other homes in Flat Rock 48134?

Among the 7,062 homes in Flat Rock 48134, it is worth more than 34% of them ($225,991 against a typical $269,050), its price per square foot is higher than 17% of them ($132 against a typical $155), it is bigger than 48% of them (1,715 ft² against a typical 1,732 ft²), its lot is bigger than 9% of them (0.15 ac against a typical 0.22 ac) and it is newer than 43% of them (1993 against a typical 1997). Measured against all of Wayne County, it is worth more than 68% 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 22172 Knollwood Dr, Flat Rock, MI?

The 2025 property tax bill for 22172 Knollwood Dr, Flat Rock, MI was $6,800. The county assessed it at $159,900.

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