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Single Family ResidenceResidential
$425,465$259 / 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 96How 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 $420,000 on Jul 17, 2018

3957 21ST ST

DORR, MI 49323
2
Beds
1
Baths
1,642 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.
10 ac
Lot SizeThe size of the land the home sits on, from county records.
1964
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$425K
$408K low$443K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$420,000 · Jul 17, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,530 (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.$292,700 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$76,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$216,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$286,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$585,400

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

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
CountyALLEGAN
Lot (acres)The size of the land the home sits on, from county records.10.00
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(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.

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 · 1.3 mi
M
Hopkins Middle SchoolB-
Middle · Grades 6–8 · 6.0 mi
H
Hopkins High SchoolB+
High · Grades 9–12 · 6.0 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

3957 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.

  • Worth more than 71% of homes in Dorr 49323
  • Bigger than 72% of homes in Dorr 49323
  • Has a bigger lot than 92% of homes in Dorr 49323
  • Older than 88% 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
$200K$668K

This home is worth more than 71% 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$425,465
CheaperTypical $369,790Pricier

Pricier than 71% of homes nearby

Price per ft²$259
CheaperTypical $268Pricier

Pricier than 44% of homes nearby

Living area1,642 ft²
SmallerTypical 1,394 ft²Bigger

Bigger than 72% of homes nearby

Lot size10 ac
SmallerTypical 1.17 acBigger

Bigger than 92% of homes nearby

Year built1964
OlderTypical 1994Newer

Newer than 12% of homes nearby

How 3957 21st St ranks against every home in each area.
MeasureThis homeDorr 49323Allegan County
Estimated valuepricier than$425,46571% of homes67% of homes
Price per ft²pricier than$25944% of homes60% of homes
Living areabigger than1,642 ft²72% of homes60% of homes
Lot sizebigger than10 ac92% of homes92% of homes
Year builtnewer than196412% of homes28% of homes

About 3957 21st St

How much is 3957 21st St, Dorr, MI worth?

The TopHap Estimate for 3957 21st St, Dorr, MI is $425,465 as of Sep 24, 2026. The likely range is $407,516 to $443,414. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3957 21st St, Dorr, MI last sell?

3957 21st St, Dorr, MI last sold on Jul 17, 2018 for $420,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 3957 21st St, Dorr, MI?

3957 21st St, Dorr, MI has 2 bedrooms, 1 bathrooms, 1,642 square feet of living space and a 10.00-acre lot.

When was 3957 21st St, Dorr, MI built?

3957 21st St, Dorr, MI was built in 1964, making it 62 years old. The building has 1 story.

What schools serve 3957 21st St, Dorr, MI?

3957 21st St, Dorr, MI is assigned to Sycamore Elementary School (elementary), rated A-; Hopkins Middle School (middle), rated B-; Hopkins High School (high), rated B+. All sit in Hopkins Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3957 21st St, Dorr, MI compare to other homes in Dorr 49323?

Among the 3,521 homes in Dorr 49323, it is worth more than 71% of them ($425,465 against a typical $369,790), its price per square foot is higher than 44% of them ($259 against a typical $268), it is bigger than 72% of them (1,642 ft² against a typical 1,394 ft²), its lot is bigger than 92% of them (10 ac against a typical 1.17 ac) and it is newer than 12% of them (1964 against a typical 1994). Measured against all of Allegan County, it is worth more than 67% 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 3957 21st St, Dorr, MI?

The 2025 property tax bill for 3957 21st St, Dorr, MI was $7,530. The county assessed it at $292,700.

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