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Single Family ResidenceResidential
$857,569$315 / 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 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026

21 CHARLTON LN

CHARLESTON, SC 29407
3
Beds
2
Baths
2,721 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.
0.43 ac
Lot SizeThe size of the land the home sits on, from county records.
1978
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
5
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$858K
$789K low$927K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,210 (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.$372,945 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$92,693
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$280,252
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$19,460
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$803,800

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.90 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.86%

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
CountyCHARLESTON
Lot (acres)The size of the land the home sits on, from county records.0.43
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Mat/Raft Foundation (Slab)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Heat Pump
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, Detached
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 · 242 ft²

Transaction History(4)

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 School
Elementary · Grades PK–5 · 0.6 mi
H
West Ashley High SchoolC+
High · Grades 9–12 · 4.8 mi
M
C. E. Williams Middle SchoolB+
Middle · Grades 6–8 · 4.8 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

21 Charlton 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.

  • Worth more than 79% of homes in Charleston 29407
  • Costs less per square foot than 76% of homes in Charleston 29407
  • Bigger than 89% of homes in Charleston 29407
  • Has a bigger lot than 86% of homes in Charleston 29407
  • Newer than 77% 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
$228K$2.2M

This home is worth more than 79% 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$857,569
CheaperTypical $582,972Pricier

Pricier than 79% of homes nearby

Price per ft²$315
CheaperTypical $359Pricier

Pricier than 24% of homes nearby

Living area2,721 ft²
SmallerTypical 1,560 ft²Bigger

Bigger than 89% of homes nearby

Lot size0.43 ac
SmallerTypical 0.26 acBigger

Bigger than 86% of homes nearby

Year built1978
OlderTypical 1965Newer

Newer than 77% of homes nearby

How 21 Charlton Ln ranks against every home in each area.
MeasureThis homeCharleston 29407Charleston County
Estimated valuepricier than$857,56979% of homes68% of homes
Price per ft²pricier than$31524% of homes39% of homes
Living areabigger than2,721 ft²89% of homes83% of homes
Lot sizebigger than0.43 ac86% of homes78% of homes
Year builtnewer than197877% of homes35% of homes

About 21 Charlton Ln

How much is 21 Charlton Ln, Charleston, SC worth?

The TopHap Estimate for 21 Charlton Ln, Charleston, SC is $857,569 as of Oct 21, 2026. The likely range is $788,609 to $926,529. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Charlton Ln, Charleston, SC last sell?

21 Charlton Ln, Charleston, SC last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 21 Charlton Ln, Charleston, SC?

21 Charlton Ln, Charleston, SC has 3 bedrooms, 2 bathrooms, 2,721 square feet of living space and a 0.43-acre lot.

When was 21 Charlton Ln, Charleston, SC built?

21 Charlton Ln, Charleston, SC was built in 1978, making it 48 years old. The building has 2 stories.

What schools serve 21 Charlton Ln, Charleston, SC?

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

How does 21 Charlton Ln, Charleston, SC compare to other homes in Charleston 29407?

Among the 12,240 homes in Charleston 29407, it is worth more than 79% of them ($857,569 against a typical $582,972), its price per square foot is higher than 24% of them ($315 against a typical $359), it is bigger than 89% of them (2,721 ft² against a typical 1,560 ft²), its lot is bigger than 86% of them (0.43 ac against a typical 0.26 ac) and it is newer than 77% of them (1978 against a typical 1965). Measured against all of Charleston County, it is worth more than 68% 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 21 Charlton Ln, Charleston, SC?

The 2025 property tax bill for 21 Charlton Ln, Charleston, SC was $6,210. The county assessed it at $372,945.

More homes on Charlton Ln

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Assigned schools

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