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Single Family ResidenceResidential
$214,434$229 / 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 $21,215 on Aug 3, 2011

21 BLACKBURN ST SW

GRAND RAPIDS, MI 49507
3
Beds
1
Baths
936 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.
0.12 ac
Lot SizeThe size of the land the home sits on, from county records.
1926
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$214K
$205K low$224K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$21,215 · Aug 3, 2011

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,602 (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.$98,900 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$84,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$197,800

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.33
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
62
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
74
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
29
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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.Single Family Residence
CountyKENT
Lot (acres)The size of the land the home sits on, from county records.0.12
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 120 ft²

Transaction History(5)

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.

H
Wyoming High SchoolB-
High · Grades 9–12 · 1.8 mi
E
Parkview Elementary SchoolC-
Elementary · Grades KG–4 · 2.5 mi
M
Wyoming Junior High SchoolC-
Middle · Grades 7–8 · 2.6 mi

District: Wyoming Public Schools

Neighborhood · ZIP 49507These 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.121
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.81
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.15

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.95%
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.26%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.37,497
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.6,743 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$57,676
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$74,047
Average tempThe average temperature here across a full year.47°F
Annual precipHow much rain and melted snow falls here in a typical year.37 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

21 Blackburn St Sw 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 90% of homes in Kent County
  • Costs more per square foot than 76% of homes in Grand Rapids 49507
  • Smaller than 91% of homes in Kent County
  • Has a smaller lot than 83% of homes in Kent County
  • Older than 82% of homes in Kent County

What homes are worth in Grand Rapids 49507

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

This home
$123K$381K

This home is worth more than 43% of homes in Grand Rapids 49507.

How it measures up in Grand Rapids 49507

The dot is this home. The mark in the middle is the typical home in Grand Rapids 49507.

Estimated value$214,434
CheaperTypical $230,212Pricier

Pricier than 43% of homes nearby

Price per ft²$229
CheaperTypical $180Pricier

Pricier than 76% of homes nearby

Living area936 ft²
SmallerTypical 1,319 ft²Bigger

Bigger than 10% of homes nearby

Lot size0.12 ac
SmallerTypical 0.12 acBigger

Bigger than 39% of homes nearby

Year built1926
OlderTypical 1925Newer

Newer than 55% of homes nearby

How 21 Blackburn St Sw ranks against every home in each area.
MeasureThis homeGrand Rapids 49507Kent County
Estimated valuepricier than$214,43443% of homes10% of homes
Price per ft²pricier than$22976% of homes37% of homes
Living areabigger than936 ft²10% of homes9% of homes
Lot sizebigger than0.12 ac39% of homes17% of homes
Year builtnewer than192655% of homes18% of homes

About 21 Blackburn St Sw

How much is 21 Blackburn St Sw, Grand Rapids, MI worth?

The TopHap Estimate for 21 Blackburn St Sw, Grand Rapids, MI is $214,434 as of Sep 24, 2026. The likely range is $205,044 to $223,824. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Blackburn St Sw, Grand Rapids, MI last sell?

21 Blackburn St Sw, Grand Rapids, MI last sold on Aug 3, 2011 for $21,215, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 21 Blackburn St Sw, Grand Rapids, MI?

21 Blackburn St Sw, Grand Rapids, MI has 3 bedrooms, 1 bathrooms, 936 square feet of living space and a 0.12-acre lot.

When was 21 Blackburn St Sw, Grand Rapids, MI built?

21 Blackburn St Sw, Grand Rapids, MI was built in 1926, making it 100 years old. The building has 3 stories.

What schools serve 21 Blackburn St Sw, Grand Rapids, MI?

21 Blackburn St Sw, Grand Rapids, MI is assigned to Wyoming High School (high), rated B-; Parkview Elementary School (elementary), rated C-; Wyoming Junior High School (middle), rated C-. All sit in Wyoming Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Blackburn St Sw, Grand Rapids, MI compare to other homes in Grand Rapids 49507?

Among the 11,169 homes in Grand Rapids 49507, it is worth more than 43% of them ($214,434 against a typical $230,212), its price per square foot is higher than 76% of them ($229 against a typical $180), it is bigger than 10% of them (936 ft² against a typical 1,319 ft²), its lot is bigger than 39% of them (0.12 ac against a typical 0.12 ac) and it is newer than 55% of them (1926 against a typical 1925). Measured against all of Kent County, it is worth more than 10% 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 21 Blackburn St Sw, Grand Rapids, MI?

The 2025 property tax bill for 21 Blackburn St Sw, Grand Rapids, MI was $1,602. The county assessed it at $98,900.

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