Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$1,086,488$1,093 / 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 Aug 30, 2026

21 CHARLOTTE ST

CHARLESTON, SC 29403
Building report
2
Beds
2.5
Baths
994 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.
0.33 ac
Lot SizeThe size of the land the home sits on, from county records.
2020
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$1.1M
$995K low$1.2M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,502 (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.$36,000 (2024)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$36,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$600,000

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.59
100
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
80
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
65
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
49
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.65 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.98%
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.Victorian
CountyCHARLESTON
Lot (acres)The size of the land the home sits on, from county records.0.33
RoofThe main material covering the roof, such as asphalt shingle or tile.Galvanized
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(3)

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
Memminger School Of Global StudiesD-
Elementary · Grades PK–5 · 0.6 mi
M
Simmons-Pinckney Middle SchoolC-
Middle · Grades 6–8 · 1.3 mi
H
Burke High SchoolF
High · Grades 9–12 · 1.3 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%

Owner Tools

Do you own this home?
Claim this home

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 Charlotte 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 80% of homes in Mazyck-Wraggborough
  • Costs more per square foot than 96% of homes in Charleston 29403
  • Smaller than 93% of homes in Mazyck-Wraggborough
  • Has a bigger lot than 98% of homes in Mazyck-Wraggborough
  • Among the newest homes in Mazyck-Wraggborough

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
$315K$2.6M

This home is worth more than 65% 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$1,086,488
CheaperTypical $909,429Pricier

Pricier than 65% of homes nearby

Price per ft²$1093
CheaperTypical $643Pricier

Pricier than 96% of homes nearby

Living area994 ft²
SmallerTypical 1,548 ft²Bigger

Bigger than 16% of homes nearby

Lot size0.33 ac
SmallerTypical 0.1 acBigger

Bigger than 95% of homes nearby

Year built2020
OlderTypical 1938Newer

Newer than almost all homes nearby

How 21 Charlotte St ranks against every home in each area.
MeasureThis homeMazyck-WraggboroughCharleston 29403Charleston County
Estimated valuepricier than$1,086,48820% of homes65% of homes77% of homes
Price per ft²pricier than$109388% of homes96% of homes96% of homes
Living areabigger than994 ft²7% of homes16% of homes11% of homes
Lot sizebigger than0.33 ac98% of homes95% of homes68% of homes
Year builtnewer than2020almost all homesalmost all homes96% of homes

About 21 Charlotte St

How much is 21 Charlotte St, Charleston, SC worth?

The TopHap Estimate for 21 Charlotte St, Charleston, SC is $1,086,488 as of Aug 30, 2026. The likely range is $994,666 to $1,178,310. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Charlotte St, Charleston, SC last sell?

21 Charlotte St, Charleston, SC last sold on Jan 1, 1900, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 21 Charlotte St, Charleston, SC?

21 Charlotte St, Charleston, SC has 2 bedrooms, 2.5 bathrooms, 994 square feet of living space and a 0.33-acre lot.

When was 21 Charlotte St, Charleston, SC built?

21 Charlotte St, Charleston, SC was built in 2020, making it 6 years old. It is a victorian home. The building has 2 stories.

What schools serve 21 Charlotte St, Charleston, SC?

21 Charlotte St, Charleston, SC is assigned to Memminger School Of Global Studies (elementary), rated D-; 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 21 Charlotte St, Charleston, SC compare to other homes in Charleston 29403?

Among the 6,405 homes in Charleston 29403, it is worth more than 65% of them ($1,086,488 against a typical $909,429), its price per square foot is higher than 96% of them ($1093 against a typical $643), it is bigger than 16% of them (994 ft² against a typical 1,548 ft²), its lot is bigger than 95% of them (0.33 ac against a typical 0.1 ac) and it is newer than almost all of them (2020 against a typical 1938). Measured against all of Charleston County, it is worth more than 77% 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 Charlotte St, Charleston, SC?

The 2025 property tax bill for 21 Charlotte St, Charleston, SC was $11,502. The county assessed it at $36,000.

More homes on Charlotte St

Closest homes

More homes in Charleston 29403

Assigned schools

Explore the area

See this home in context

Open 21 Charlotte St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map