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Single Family ResidenceResidential
$127,652$83 / 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 Jul 14, 2026
Last sold for $914,955 on Dec 16, 2002

851 UNION AVE SE

GRAND RAPIDS, MI 49507
3
Beds
1
Baths
1,530 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.
3,093 ft²
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$128K
$109K low$146K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$914,955 · Dec 16, 2002
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$0
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$0
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$902,000
MERCANTILE BANK MORTGAGE CO · P · recorded Dec 16, 2002
2nd MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$902,000
MERCANTILE BANK MORTGAGE CO
3rd MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$902,000

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,167 (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.$80,000 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$73,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$160,000

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.
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.
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.0.07
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.Porch · 110 ft²

Transaction History(2)

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.

M
Grand Rapids University Preparatory AcademyB-
Middle · Grades 6–12 · 0.8 mi

District: Grand Rapids 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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.Yes

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

851 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.

  • Among the least valuable homes in Kent County
  • Among the lowest price per square foot in Kent County
  • Bigger than 72% of homes in Grand Rapids 49507
  • Has a smaller lot than 98% of homes in Grand Rapids 49507
  • Older than 93% 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
$114K$391K

This home is worth more than 5% 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$127,652
CheaperTypical $235,265Pricier

Pricier than 5% of homes nearby

Price per ft²$83
CheaperTypical $176Pricier

Pricier than 3% of homes nearby

Living area1,530 ft²
SmallerTypical 1,318 ft²Bigger

Bigger than 72% of homes nearby

Lot size3,093 ft²
SmallerTypical 0.12 acBigger

Bigger than 2% of homes nearby

Year built1900
OlderTypical 1926Newer

Newer than 11% of homes nearby

How 851 Union Ave Se ranks against every home in each area.
MeasureThis homeSoutheast Community / SECAGrand Rapids 49507Kent County
Estimated valuepricier than$127,6527% of homes5% of homesalmost no homes
Price per ft²pricier than$839% of homes3% of homesalmost no homes
Living areabigger than1,530 ft²54% of homes72% of homes56% of homes
Lot sizebigger than3,093 ft²8% of homes2% of homes8% of homes
Year builtnewer than190036% of homes11% of homes7% of homes

About 851 Union Ave Se

How much is 851 Union Ave Se, Grand Rapids, MI worth?

The TopHap Estimate for 851 Union Ave Se, Grand Rapids, MI is $127,652 as of Jul 14, 2026. The likely range is $108,848 to $146,456. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 851 Union Ave Se, Grand Rapids, MI last sell?

851 Union Ave Se, Grand Rapids, MI last sold on Dec 16, 2002 for $914,955, according to the county's recorded deed.

How big is 851 Union Ave Se, Grand Rapids, MI?

851 Union Ave Se, Grand Rapids, MI has 3 bedrooms, 1 bathrooms, 1,530 square feet of living space and a 0.07-acre lot.

When was 851 Union Ave Se, Grand Rapids, MI built?

851 Union Ave Se, Grand Rapids, MI was built in 1900, making it 126 years old. The building has 2 stories.

What schools serve 851 Union Ave Se, Grand Rapids, MI?

851 Union Ave Se, Grand Rapids, MI is assigned to Grand Rapids University Preparatory Academy (middle), rated B-. All sit in Grand Rapids Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 851 Union Ave Se, 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 5% of them ($127,652 against a typical $235,265), its price per square foot is higher than 3% of them ($83 against a typical $176), it is bigger than 72% of them (1,530 ft² against a typical 1,318 ft²), its lot is bigger than 2% of them (3,093 ft² against a typical 0.12 ac) and it is newer than 11% of them (1900 against a typical 1926). Measured against all of Kent County, it is worth more than almost no 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 851 Union Ave Se, Grand Rapids, MI?

The 2025 property tax bill for 851 Union Ave Se, Grand Rapids, MI was $1,167. The county assessed it at $80,000.

Closest homes

More homes in Grand Rapids 49507

Assigned schools

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