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Single Family ResidenceResidential
$601,902$196 / 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 91How 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 $49,900 on Oct 20, 1986

251 UNION AVE SE

GRAND RAPIDS, MI 49503
2.5
Baths
3,077 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.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
1890
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$602K
$548K low$655K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$49,900 · Oct 20, 1986

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,549 (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.$323,600 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$286,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$647,200

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.35
10
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.
61
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.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.7 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.0.16
HeatingThe type of heating system in the home.Hot Water
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.Porch · 304 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.

E
Martin Luther King Leadership AcademyD+
Elementary · Grades PK–8 · 0.3 mi
H
Innovation Central High SchoolC-
High · Grades 9–12 · 0.6 mi

District: Grand Rapids Public Schools

Neighborhood · ZIP 49503These 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.149
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.78
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.20

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.23%
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.40,149
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,306 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$59,548
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$76,334
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

251 Union Ave Se 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 95% of homes in Grand Rapids 49503
  • Costs less per square foot than 81% of homes in Kent County
  • Bigger than 97% of homes in Kent County
  • Has a smaller lot than 73% of homes in Kent County
  • Older than 97% of homes in Kent County

What homes are worth in Grand Rapids 49503

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

This home
$133K$741K

This home is worth more than 95% of homes in Grand Rapids 49503.

How it measures up in Grand Rapids 49503

The dot is this home. The mark in the middle is the typical home in Grand Rapids 49503.

Estimated value$601,902
CheaperTypical $280,604Pricier

Pricier than 95% of homes nearby

Price per ft²$196
CheaperTypical $224Pricier

Pricier than 34% of homes nearby

Living area3,077 ft²
SmallerTypical 1,352 ft²Bigger

Bigger than 95% of homes nearby

Lot size0.16 ac
SmallerTypical 0.14 acBigger

Bigger than 65% of homes nearby

Year built1890
OlderTypical 1918Newer

Newer than 15% of homes nearby

How 251 Union Ave Se ranks against every home in each area.
MeasureThis homeHeritage HillGrand Rapids 49503Kent County
Estimated valuepricier than$601,90274% of homes95% of homes87% of homes
Price per ft²pricier than$19630% of homes34% of homes19% of homes
Living areabigger than3,077 ft²73% of homes95% of homes97% of homes
Lot sizebigger than0.16 ac51% of homes65% of homes27% of homes
Year builtnewer than189027% of homes15% of homes3% of homes

About 251 Union Ave Se

How much is 251 Union Ave Se, Grand Rapids, MI worth?

The TopHap Estimate for 251 Union Ave Se, Grand Rapids, MI is $601,902 as of Sep 24, 2026. The likely range is $548,477 to $655,327. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 251 Union Ave Se, Grand Rapids, MI last sell?

251 Union Ave Se, Grand Rapids, MI last sold on Oct 20, 1986 for $49,900, according to the county's recorded deed.

How big is 251 Union Ave Se, Grand Rapids, MI?

251 Union Ave Se, Grand Rapids, MI has 2.5 bathrooms, 3,077 square feet of living space and a 0.16-acre lot.

When was 251 Union Ave Se, Grand Rapids, MI built?

251 Union Ave Se, Grand Rapids, MI was built in 1890, making it 136 years old. The building has 2 stories.

What schools serve 251 Union Ave Se, Grand Rapids, MI?

251 Union Ave Se, Grand Rapids, MI is assigned to Martin Luther King Leadership Academy (elementary), rated D+; Innovation Central High School (high), rated C-. All sit in Grand Rapids Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 251 Union Ave Se, Grand Rapids, MI compare to other homes in Grand Rapids 49503?

Among the 9,995 homes in Grand Rapids 49503, it is worth more than 95% of them ($601,902 against a typical $280,604), its price per square foot is higher than 34% of them ($196 against a typical $224), it is bigger than 95% of them (3,077 ft² against a typical 1,352 ft²), its lot is bigger than 65% of them (0.16 ac against a typical 0.14 ac) and it is newer than 15% of them (1890 against a typical 1918). Measured against all of Kent County, it is worth more than 87% 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 251 Union Ave Se, Grand Rapids, MI?

The 2025 property tax bill for 251 Union Ave Se, Grand Rapids, MI was $2,549. The county assessed it at $323,600.

More homes on Union Ave Se

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