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Single Family ResidenceResidential
$274,122$169 / 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 94How 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

4122 BIG ROCK CT

GRAND BLANC, MI 48439
3
Beds
2.5
Baths
1,624 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.
0.35 ac
Lot SizeThe size of the land the home sits on, from county records.
1996
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
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

$274K
$257K low$291K high
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.$28,322
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$22,658
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.96%
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.$152,800
COUNTRYWIDE MORTGAGE VENTURES · recorded Jan 18, 2005
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.$93,000
MORTGAGE 1 INC

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,131 (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.$118,400 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$116,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$236,800

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
CountyGENESEE
Lot (acres)The size of the land the home sits on, from county records.0.35
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

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Bobcat InnovationA-
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 · 2.4 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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

4122 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 76% of homes in Genesee County
  • Costs more per square foot than 73% of homes in Genesee County
  • Bigger than 68% of homes in Genesee County
  • Newer than 84% 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
$129K$611K

This home is worth more than 47% 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$274,122
CheaperTypical $279,781Pricier

Pricier than 47% of homes nearby

Price per ft²$169
CheaperTypical $160Pricier

Pricier than 60% of homes nearby

Living area1,624 ft²
SmallerTypical 1,761 ft²Bigger

Bigger than 42% of homes nearby

Lot size0.35 ac
SmallerTypical 0.4 acBigger

Bigger than 41% of homes nearby

Year built1996
OlderTypical 1984Newer

Newer than 64% of homes nearby

How 4122 Big Rock Ct ranks against every home in each area.
MeasureThis homeGrand Blanc 48439Genesee County
Estimated valuepricier than$274,12247% of homes76% of homes
Price per ft²pricier than$16960% of homes73% of homes
Living areabigger than1,624 ft²42% of homes68% of homes
Lot sizebigger than0.35 ac41% of homes52% of homes
Year builtnewer than199664% of homes84% of homes

About 4122 Big Rock Ct

How much is 4122 Big Rock Ct, Grand Blanc, MI worth?

The TopHap Estimate for 4122 Big Rock Ct, Grand Blanc, MI is $274,122 as of Jul 14, 2026. The likely range is $257,159 to $291,085. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4122 Big Rock Ct, Grand Blanc, MI last sell?

4122 Big Rock Ct, Grand Blanc, MI last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 4122 Big Rock Ct, Grand Blanc, MI?

4122 Big Rock Ct, Grand Blanc, MI has 3 bedrooms, 2.5 bathrooms, 1,624 square feet of living space and a 0.35-acre lot.

When was 4122 Big Rock Ct, Grand Blanc, MI built?

4122 Big Rock Ct, Grand Blanc, MI was built in 1996, making it 30 years old. The building has 2 stories.

What schools serve 4122 Big Rock Ct, Grand Blanc, MI?

4122 Big Rock Ct, Grand Blanc, MI is assigned to Bobcat Innovation (elementary), rated A-; 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 4122 Big Rock Ct, Grand Blanc, MI compare to other homes in Grand Blanc 48439?

Among the 17,414 homes in Grand Blanc 48439, it is worth more than 47% of them ($274,122 against a typical $279,781), its price per square foot is higher than 60% of them ($169 against a typical $160), it is bigger than 42% of them (1,624 ft² against a typical 1,761 ft²), its lot is bigger than 41% of them (0.35 ac against a typical 0.4 ac) and it is newer than 64% of them (1996 against a typical 1984). Measured against all of Genesee County, it is worth more than 76% 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 4122 Big Rock Ct, Grand Blanc, MI?

The 2025 property tax bill for 4122 Big Rock Ct, Grand Blanc, MI was $2,131. The county assessed it at $118,400.

Closest homes

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Assigned schools

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