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Single Family ResidenceResidential
$610,303$322 / 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 89How 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

18 ALLISON CT

CHARLESTON, SC 29407
3
Beds
2
Baths
1,895 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.
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
1976
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$610K
$542K low$679K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,165 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$8,230 (2024)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$8,230
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$300,600

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.52 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.99%

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
CountyCharleston
Lot (acres)The size of the land the home sits on, from county records.0.18
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Mat/Raft Foundation (Slab)
HeatingThe type of heating system in the home.Heat Pump
CoolingThe type of cooling or air conditioning in the home.Yes
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, Attached
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 · 105 ft²

Transaction History(1)

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
Stono Park Elementary SchoolC-
Elementary · Grades PK–5 · 0.2 mi
M
C.E. Williams Middle SchoolC
Middle · Grades 6–8 · 4.3 mi
H
West Ashley High SchoolB
High · Grades 9–12 · 4.3 mi

District: Charleston County School District

Neighborhood · ZIP 29407These 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.106
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.349

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.37,520
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,108 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$83,865
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$108,457
Average tempThe average temperature here across a full year.66°F
Annual precipHow much rain and melted snow falls here in a typical year.48 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.63%

Owner Tools

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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

18 Allison 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.

  • Costs less per square foot than 70% of homes in Charleston 29407
  • Bigger than 68% of homes in Charleston 29407
  • Has a smaller lot than 81% of homes in Charleston 29407
  • Newer than 74% of homes in Charleston 29407

What homes are worth in Charleston 29407

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

This home
$230K$2.1M

This home is worth more than 55% of homes in Charleston 29407.

How it measures up in Charleston 29407

The dot is this home. The mark in the middle is the typical home in Charleston 29407.

Estimated value$610,303
CheaperTypical $575,306Pricier

Pricier than 55% of homes nearby

Price per ft²$322
CheaperTypical $355Pricier

Pricier than 30% of homes nearby

Living area1,895 ft²
SmallerTypical 1,560 ft²Bigger

Bigger than 68% of homes nearby

Lot size0.18 ac
SmallerTypical 0.26 acBigger

Bigger than 19% of homes nearby

Year built1976
OlderTypical 1964Newer

Newer than 74% of homes nearby

How 18 Allison Ct ranks against every home in each area.
MeasureThis homeCharleston 29407Charleston County
Estimated valuepricier than$610,30355% of homes49% of homes
Price per ft²pricier than$32230% of homes40% of homes
Living areabigger than1,895 ft²68% of homes58% of homes
Lot sizebigger than0.18 ac19% of homes33% of homes
Year builtnewer than197674% of homes33% of homes

About 18 Allison Ct

How much is 18 Allison Ct, Charleston, SC worth?

The TopHap Estimate for 18 Allison Ct, Charleston, SC is $610,303 as of Aug 30, 2026. The likely range is $541,715 to $678,891. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 18 Allison Ct, Charleston, SC?

18 Allison Ct, Charleston, SC has 3 bedrooms, 2 bathrooms, 1,895 square feet of living space and a 0.18-acre lot.

When was 18 Allison Ct, Charleston, SC built?

18 Allison Ct, Charleston, SC was built in 1976, making it 50 years old. It is a ranch home. The building has 2 stories.

What schools serve 18 Allison Ct, Charleston, SC?

18 Allison Ct, Charleston, SC is assigned to Stono Park Elementary School (elementary), rated C-; C.E. Williams Middle School (middle), rated C; West Ashley High School (high), rated B. All sit in Charleston County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18 Allison Ct, Charleston, SC compare to other homes in Charleston 29407?

Among the 12,242 homes in Charleston 29407, it is worth more than 55% of them ($610,303 against a typical $575,306), its price per square foot is higher than 30% of them ($322 against a typical $355), it is bigger than 68% of them (1,895 ft² against a typical 1,560 ft²), its lot is bigger than 19% of them (0.18 ac against a typical 0.26 ac) and it is newer than 74% of them (1976 against a typical 1964). Measured against all of Charleston County, it is worth more than 49% 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 18 Allison Ct, Charleston, SC?

The 2024 property tax bill for 18 Allison Ct, Charleston, SC was $1,165. The county assessed it at $8,230.

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