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Single Family ResidenceResidential
$501,031$612 / 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 Sep 24, 2026

18 DEWEY ST

CHARLESTON, SC 29403
2
Beds
1
Baths
819 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.
2,614 ft²
Lot SizeThe size of the land the home sits on, from county records.
1935
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$501K
$446K low$556K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,651 (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.$8,820 (2024)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$8,820
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$325,900

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.81%

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.Bungalow
CountyCharleston
Lot (acres)The size of the land the home sits on, from county records.0.06
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.Baseboard
CoolingThe type of cooling or air conditioning in the home.None
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 · 116 ft²

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

E
James Simons Montessori School
Elementary · Grades KG–5 · 0.1 mi
M
Simmons-Pinckney Middle SchoolC-
Middle · Grades 6–8 · 0.4 mi
H
Burke High SchoolF
High · Grades 9–12 · 0.5 mi

District: Charleston County School District

Neighborhood · ZIP 29403These 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.136
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.84
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.337

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.77%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.21%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.22,498
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,949 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$69,730
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$102,723
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%

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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 Dewey St 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 less than 87% of homes in North Central
  • Costs more per square foot than 83% of homes in Charleston County
  • Smaller than 95% of homes in Charleston County
  • Has a smaller lot than 93% of homes in Charleston County
  • Older than 95% of homes in Charleston County

What homes are worth in Charleston 29403

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

This home
$326K$2.5M

This home is worth more than 15% of homes in Charleston 29403.

How it measures up in Charleston 29403

The dot is this home. The mark in the middle is the typical home in Charleston 29403.

Estimated value$501,031
CheaperTypical $894,405Pricier

Pricier than 15% of homes nearby

Price per ft²$612
CheaperTypical $631Pricier

Pricier than 46% of homes nearby

Living area819 ft²
SmallerTypical 1,545 ft²Bigger

Bigger than 8% of homes nearby

Lot size2,614 ft²
SmallerTypical 0.1 acBigger

Bigger than 29% of homes nearby

Year built1935
OlderTypical 1938Newer

Newer than 49% of homes nearby

How 18 Dewey St ranks against every home in each area.
MeasureThis homeNorth CentralCharleston 29403Charleston County
Estimated valuepricier than$501,03113% of homes15% of homes37% of homes
Price per ft²pricier than$61248% of homes46% of homes83% of homes
Living areabigger than819 ft²6% of homes8% of homes5% of homes
Lot sizebigger than2,614 ft²27% of homes29% of homes7% of homes
Year builtnewer than193558% of homes49% of homes5% of homes

About 18 Dewey St

How much is 18 Dewey St, Charleston, SC worth?

The TopHap Estimate for 18 Dewey St, Charleston, SC is $501,031 as of Sep 24, 2026. The likely range is $446,195 to $555,867. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 Dewey St, Charleston, SC last sell?

18 Dewey St, Charleston, SC last sold on Jan 1, 1986, according to the county's recorded deed.

How big is 18 Dewey St, Charleston, SC?

18 Dewey St, Charleston, SC has 2 bedrooms, 1 bathrooms, 819 square feet of living space and a 0.06-acre lot.

When was 18 Dewey St, Charleston, SC built?

18 Dewey St, Charleston, SC was built in 1935, making it 91 years old. It is a bungalow home. The building has 1 story.

What schools serve 18 Dewey St, Charleston, SC?

18 Dewey St, Charleston, SC is assigned to James Simons Montessori School (elementary); Simmons-Pinckney Middle School (middle), rated C-; Burke High School (high), rated F. All sit in Charleston County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18 Dewey St, Charleston, SC compare to other homes in Charleston 29403?

Among the 6,405 homes in Charleston 29403, it is worth more than 15% of them ($501,031 against a typical $894,405), its price per square foot is higher than 46% of them ($612 against a typical $631), it is bigger than 8% of them (819 ft² against a typical 1,545 ft²), its lot is bigger than 29% of them (2,614 ft² against a typical 0.1 ac) and it is newer than 49% of them (1935 against a typical 1938). Measured against all of Charleston County, it is worth more than 37% 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 Dewey St, Charleston, SC?

The 2024 property tax bill for 18 Dewey St, Charleston, SC was $2,651. The county assessed it at $8,820.

More homes on Dewey St

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Assigned schools

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