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Single Family ResidenceResidential
$4,679,135$1,337 / 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 83How 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

8312 RIVER ROCK LN

DELAWARE, OH 43015
1
Beds
3 / 1
Baths
3,501 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.
4.29 ac
Lot SizeThe size of the land the home sits on, from county records.
2015
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.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$4.7M
$3.9M low$5.5M 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.$3,679,135
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$2,943,308
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.22%
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.$1,000,000
FIRST MERCHANTS BANK · R · 3.5% 1 · recorded Aug 7, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$28,604 (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.$504,530 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$125,860
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$378,670
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$504,530
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,441,500

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.61
97
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
23
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
75
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
85
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
25
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.115 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.1 percent flood zone

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.Conventional
CountyDelaware
Lot (acres)The size of the land the home sits on, from county records.4.29
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Basement
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 204 ft²

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

H
Olentangy High SchoolA+
High · Grades 9–12 · 2.5 mi
E
Heritage Elementary SchoolA
Elementary · Grades KG–5 · 2.7 mi
M
Shanahan Middle SchoolA+
Middle · Grades 6–8 · 2.9 mi

District: Olentangy Local School District

Neighborhood · ZIP 43015These 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.125
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.176
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.37

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.93%
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.6.3%
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.62,845
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.497 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$101,920
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$116,218
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.38 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.49%

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

8312 River Rock Ln 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 most valuable homes in Delaware 43015
  • Among the highest price per square foot in Delaware 43015
  • Bigger than 93% of homes in Delaware 43015
  • Has a bigger lot than 91% of homes in Delaware 43015
  • Newer than 82% of homes in Delaware County

What homes are worth in Delaware 43015

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

This home
$109K$1.1M

This home is worth more than almost all homes in Delaware 43015.

How it measures up in Delaware 43015

The dot is this home. The mark in the middle is the typical home in Delaware 43015.

Estimated value$4,679,135
CheaperTypical $412,825Pricier

Pricier than almost all homes nearby

Price per ft²$1337
CheaperTypical $212Pricier

Pricier than almost all homes nearby

Living area3,501 ft²
SmallerTypical 1,966 ft²Bigger

Bigger than 93% of homes nearby

Lot size4.29 ac
SmallerTypical 0.27 acBigger

Bigger than 91% of homes nearby

Year built2015
OlderTypical 2001Newer

Newer than 76% of homes nearby

How 8312 River Rock Ln ranks against every home in each area.
MeasureThis homeDelaware 43015Delaware County
Estimated valuepricier than$4,679,135almost all homesalmost all homes
Price per ft²pricier than$1337almost all homesalmost all homes
Living areabigger than3,501 ft²93% of homes90% of homes
Lot sizebigger than4.29 ac91% of homes89% of homes
Year builtnewer than201576% of homes82% of homes

About 8312 River Rock Ln

How much is 8312 River Rock Ln, Delaware, OH worth?

The TopHap Estimate for 8312 River Rock Ln, Delaware, OH is $4,679,135 as of Jul 14, 2026. The likely range is $3,868,034 to $5,490,236. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 8312 River Rock Ln, Delaware, OH last sell?

8312 River Rock Ln, Delaware, OH last sold on Jan 17, 2018, according to the county's recorded deed.

How big is 8312 River Rock Ln, Delaware, OH?

8312 River Rock Ln, Delaware, OH has 1 bedrooms, 3 bathrooms, 3,501 square feet of living space and a 4.29-acre lot.

When was 8312 River Rock Ln, Delaware, OH built?

8312 River Rock Ln, Delaware, OH was built in 2015, making it 11 years old. It is a conventional home. The building has 2 stories.

What schools serve 8312 River Rock Ln, Delaware, OH?

8312 River Rock Ln, Delaware, OH is assigned to Olentangy High School (high), rated A+; Heritage Elementary School (elementary), rated A; Shanahan Middle School (middle), rated A+. All sit in Olentangy Local School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 8312 River Rock Ln, Delaware, OH compare to other homes in Delaware 43015?

Among the 22,483 homes in Delaware 43015, it is worth more than almost all of them ($4,679,135 against a typical $412,825), its price per square foot is higher than almost all of them ($1337 against a typical $212), it is bigger than 93% of them (3,501 ft² against a typical 1,966 ft²), its lot is bigger than 91% of them (4.29 ac against a typical 0.27 ac) and it is newer than 76% of them (2015 against a typical 2001). Measured against all of Delaware County, it is worth more than almost all 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 8312 River Rock Ln, Delaware, OH?

The 2025 property tax bill for 8312 River Rock Ln, Delaware, OH was $28,604. The county assessed it at $504,530.

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Closest homes

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Assigned schools

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