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Single Family ResidenceResidential
$376,103$168 / 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 93How 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 $189,900 on Oct 17, 2017

4082 21ST ST

DORR, MI 49323
3
Beds
1.5
Baths
2,244 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.
1.4 ac
Lot SizeThe size of the land the home sits on, from county records.
1920
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$376K
$352K low$401K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$189,900 · Oct 17, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,781 (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.$141,900 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$57,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$84,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$139,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$283,800

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.18 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%

Scores 0–100; higher = greater projected risk.

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.Mobile Home
CountyALLEGAN
Lot (acres)The size of the land the home sits on, from county records.1.40
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.No Foundation
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(8)

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(2)

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

E
Sycamore Elementary SchoolA
Elementary · Grades PK–5 · 0.7 mi
M
Hopkins Middle SchoolB
Middle · Grades 6–8 · 6.5 mi
H
Hopkins High SchoolC
High · Grades 9–12 · 6.6 mi

District: Hopkins Public Schools

Neighborhood · ZIP 49323These 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.62
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 100.23

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.18%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.6%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.9,132
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.182 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$91,359
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$104,048
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.39 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.46%

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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

4082 21st 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.

  • Costs less per square foot than 96% of homes in Dorr 49323
  • Bigger than 93% of homes in Dorr 49323
  • Older than 94% of homes in Dorr 49323

What homes are worth in Dorr 49323

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

This home
$202K$668K

This home is worth more than 51% of homes in Dorr 49323.

How it measures up in Dorr 49323

The dot is this home. The mark in the middle is the typical home in Dorr 49323.

Estimated value$376,103
CheaperTypical $370,452Pricier

Pricier than 51% of homes nearby

Price per ft²$168
CheaperTypical $268Pricier

Pricier than 4% of homes nearby

Living area2,244 ft²
SmallerTypical 1,393 ft²Bigger

Bigger than 93% of homes nearby

Lot size1.4 ac
SmallerTypical 1.2 acBigger

Bigger than 54% of homes nearby

Year built1920
OlderTypical 1994Newer

Newer than 6% of homes nearby

How 4082 21st St ranks against every home in each area.
MeasureThis homeDorr 49323Allegan County
Estimated valuepricier than$376,10351% of homes57% of homes
Price per ft²pricier than$1684% of homes18% of homes
Living areabigger than2,244 ft²93% of homes86% of homes
Lot sizebigger than1.4 ac54% of homes58% of homes
Year builtnewer than19206% of homes11% of homes

About 4082 21st St

How much is 4082 21st St, Dorr, MI worth?

The TopHap Estimate for 4082 21st St, Dorr, MI is $376,103 as of Sep 24, 2026. The likely range is $351,551 to $400,655. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4082 21st St, Dorr, MI last sell?

4082 21st St, Dorr, MI last sold on Oct 17, 2017 for $189,900, according to the county's recorded deed. TopHap holds 6 recorded sales for this parcel.

How big is 4082 21st St, Dorr, MI?

4082 21st St, Dorr, MI has 3 bedrooms, 1.5 bathrooms, 2,244 square feet of living space and a 1.40-acre lot.

When was 4082 21st St, Dorr, MI built?

4082 21st St, Dorr, MI was built in 1920, making it 106 years old. It is a mobile home home. The building has 2 stories.

What schools serve 4082 21st St, Dorr, MI?

4082 21st St, Dorr, MI is assigned to Sycamore Elementary School (elementary), rated A; Hopkins Middle School (middle), rated B; Hopkins High School (high), rated C. All sit in Hopkins Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4082 21st St, Dorr, MI compare to other homes in Dorr 49323?

Among the 3,527 homes in Dorr 49323, it is worth more than 51% of them ($376,103 against a typical $370,452), its price per square foot is higher than 4% of them ($168 against a typical $268), it is bigger than 93% of them (2,244 ft² against a typical 1,393 ft²), its lot is bigger than 54% of them (1.4 ac against a typical 1.2 ac) and it is newer than 6% of them (1920 against a typical 1994). Measured against all of Allegan County, it is worth more than 57% 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 4082 21st St, Dorr, MI?

The 2025 property tax bill for 4082 21st St, Dorr, MI was $2,781. The county assessed it at $141,900.

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