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Single Family ResidenceResidential
$254,538$212 / 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 95How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $134,900 on Feb 10, 2015

4140 BIG ROCK CT

GRAND BLANC, MI 48439
2
Beds
2
Baths
1,201 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.
0.36 ac
Lot SizeThe size of the land the home sits on, from county records.
1998
Year BuiltThe year the home was originally built, according to county records.
1
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.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$255K
$242K low$267K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$134,900 · Feb 10, 2015

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,594 (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.$132,900 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$22,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$110,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$128,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$265,800

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.25
10
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
6
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
53
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
57
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
2
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.6 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
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyGENESEE
Lot (acres)The size of the land the home sits on, from county records.0.36
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

E
Bobcat InnovationB-
Elementary · Grades KG–12 · 1.4 mi
H
Grand Blanc Community High SchoolB-
High · Grades 8–12 · 1.6 mi
M
Grand Blanc Middle School WestB-
Middle · Grades 6–8 · 2.5 mi

District: Grand Blanc Community Schools

Neighborhood · ZIP 48439These 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.48
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.99
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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.7%
PopulationHow many people live in this area.49,271
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.927 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$90,517
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$112,066
Average tempThe average temperature here across a full year.47°F
Annual precipHow much rain and melted snow falls here in a typical year.32 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.50%

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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

4140 Big Rock Ct 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 70% of homes in Genesee County
  • Costs more per square foot than 88% of homes in Genesee County
  • Smaller than 86% of homes in Grand Blanc 48439
  • Newer than 85% of homes in Genesee County

What homes are worth in Grand Blanc 48439

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

This home
$144K$700K

This home is worth more than 35% of homes in Grand Blanc 48439.

How it measures up in Grand Blanc 48439

The dot is this home. The mark in the middle is the typical home in Grand Blanc 48439.

Estimated value$254,538
CheaperTypical $292,691Pricier

Pricier than 35% of homes nearby

Price per ft²$212
CheaperTypical $170Pricier

Pricier than 85% of homes nearby

Living area1,201 ft²
SmallerTypical 1,775 ft²Bigger

Bigger than 14% of homes nearby

Lot size0.36 ac
SmallerTypical 0.4 acBigger

Bigger than 43% of homes nearby

Year built1998
OlderTypical 1986Newer

Newer than 68% of homes nearby

How 4140 Big Rock Ct ranks against every home in each area.
MeasureThis homeGrand Blanc 48439Genesee County
Estimated valuepricier than$254,53835% of homes70% of homes
Price per ft²pricier than$21285% of homes88% of homes
Living areabigger than1,201 ft²14% of homes39% of homes
Lot sizebigger than0.36 ac43% of homes53% of homes
Year builtnewer than199868% of homes85% of homes

About 4140 Big Rock Ct

How much is 4140 Big Rock Ct, Grand Blanc, MI worth?

The TopHap Estimate for 4140 Big Rock Ct, Grand Blanc, MI is $254,538 as of Oct 21, 2026. The likely range is $242,296 to $266,780. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4140 Big Rock Ct, Grand Blanc, MI last sell?

4140 Big Rock Ct, Grand Blanc, MI last sold on Feb 10, 2015 for $134,900, according to the county's recorded deed.

How big is 4140 Big Rock Ct, Grand Blanc, MI?

4140 Big Rock Ct, Grand Blanc, MI has 2 bedrooms, 2 bathrooms, 1,201 square feet of living space and a 0.36-acre lot.

When was 4140 Big Rock Ct, Grand Blanc, MI built?

4140 Big Rock Ct, Grand Blanc, MI was built in 1998, making it 28 years old. It is a ranch home. The building has 1 story.

What schools serve 4140 Big Rock Ct, Grand Blanc, MI?

4140 Big Rock Ct, Grand Blanc, MI is assigned to Bobcat Innovation (elementary), rated B-; Grand Blanc Community High School (high), rated B-; Grand Blanc Middle School West (middle), rated B-. All sit in Grand Blanc Community Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4140 Big Rock Ct, Grand Blanc, MI compare to other homes in Grand Blanc 48439?

Among the 17,483 homes in Grand Blanc 48439, it is worth more than 35% of them ($254,538 against a typical $292,691), its price per square foot is higher than 85% of them ($212 against a typical $170), it is bigger than 14% of them (1,201 ft² against a typical 1,775 ft²), its lot is bigger than 43% of them (0.36 ac against a typical 0.4 ac) and it is newer than 68% of them (1998 against a typical 1986). Measured against all of Genesee County, it is worth more than 70% 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 4140 Big Rock Ct, Grand Blanc, MI?

The 2025 property tax bill for 4140 Big Rock Ct, Grand Blanc, MI was $3,594. The county assessed it at $132,900.

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