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Single Family ResidenceResidential
$452,125$167 / 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 Aug 30, 2026
Last sold for $430,000 on May 11, 2022

8480 SIGNAL ISLAND DR

NORTH CHARLESTON, SC 29420
4
Beds
3
Baths
2,710 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
2013
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
4
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

$452K
$428K low$477K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$430,000 · May 11, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,214 (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.$17,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$5,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$12,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$17,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$430,000

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.120 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.45%
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
CountyDorchester
Lot (acres)The size of the land the home sits on, from county records.0.17
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Concrete
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
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.

M
River Oaks Middle SchoolC-
Middle · Grades 6–8 · 0.2 mi
E
Eagle Nest Elementary SchoolC-
Elementary · Grades KG–5 · 0.2 mi
H
Fort Dorchester High SchoolA
High · Grades 9–12 · 1.5 mi

District: Dorchester School District 2

Neighborhood · ZIP 29420These 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.85
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.395

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.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.24,810
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,575 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$83,035
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$97,506
Average tempThe average temperature here across a full year.65°F
Annual precipHow much rain and melted snow falls here in a typical year.51 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.63%

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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

8480 Signal Island Dr 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 77% of homes in North Charleston 29420
  • Costs less per square foot than 84% of homes in North Charleston 29420
  • Bigger than 85% of homes in Dorchester County
  • Has a smaller lot than 73% of homes in North Charleston 29420
  • Newer than 92% of homes in North Charleston 29420

What homes are worth in North Charleston 29420

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

This home
$177K$859K

This home is worth more than 77% of homes in North Charleston 29420.

How it measures up in North Charleston 29420

The dot is this home. The mark in the middle is the typical home in North Charleston 29420.

Estimated value$452,125
CheaperTypical $330,808Pricier

Pricier than 77% of homes nearby

Price per ft²$167
CheaperTypical $201Pricier

Pricier than 16% of homes nearby

Living area2,710 ft²
SmallerTypical 1,671 ft²Bigger

Bigger than 84% of homes nearby

Lot size0.17 ac
SmallerTypical 0.22 acBigger

Bigger than 27% of homes nearby

Year built2013
OlderTypical 1995Newer

Newer than 92% of homes nearby

How 8480 Signal Island Dr ranks against every home in each area.
MeasureThis homeNorth Charleston 29420Dorchester County
Estimated valuepricier than$452,12577% of homes73% of homes
Price per ft²pricier than$16716% of homes18% of homes
Living areabigger than2,710 ft²84% of homes85% of homes
Lot sizebigger than0.17 ac27% of homes27% of homes
Year builtnewer than201392% of homes78% of homes

About 8480 Signal Island Dr

How much is 8480 Signal Island Dr, North Charleston, SC worth?

The TopHap Estimate for 8480 Signal Island Dr, North Charleston, SC is $452,125 as of Aug 30, 2026. The likely range is $427,600 to $476,650. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 8480 Signal Island Dr, North Charleston, SC last sell?

8480 Signal Island Dr, North Charleston, SC last sold on May 11, 2022 for $430,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 8480 Signal Island Dr, North Charleston, SC?

8480 Signal Island Dr, North Charleston, SC has 4 bedrooms, 3 bathrooms, 2,710 square feet of living space and a 0.17-acre lot.

When was 8480 Signal Island Dr, North Charleston, SC built?

8480 Signal Island Dr, North Charleston, SC was built in 2013, making it 13 years old. The building has 2 stories.

What schools serve 8480 Signal Island Dr, North Charleston, SC?

8480 Signal Island Dr, North Charleston, SC is assigned to River Oaks Middle School (middle), rated C-; Eagle Nest Elementary School (elementary), rated C-; Fort Dorchester High School (high), rated A. All sit in Dorchester School District 2. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 8480 Signal Island Dr, North Charleston, SC compare to other homes in North Charleston 29420?

Among the 7,281 homes in North Charleston 29420, it is worth more than 77% of them ($452,125 against a typical $330,808), its price per square foot is higher than 16% of them ($167 against a typical $201), it is bigger than 84% of them (2,710 ft² against a typical 1,671 ft²), its lot is bigger than 27% of them (0.17 ac against a typical 0.22 ac) and it is newer than 92% of them (2013 against a typical 1995). Measured against all of Dorchester County, it is worth more than 73% 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 8480 Signal Island Dr, North Charleston, SC?

The 2025 property tax bill for 8480 Signal Island Dr, North Charleston, SC was $4,214. The county assessed it at $17,200.

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