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Duplex (2 Units, Any Combination)Residential

21 NUNAN ST

CHARLESTON, SC 29403
Building report
4
Beds
2
Baths
1,538 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.
871 ft²
Lot SizeThe size of the land the home sits on, from county records.
1940
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,834 (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.$14,420 (2024)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$14,420
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$360,872

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.98%

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
CountyCHARLESTON
Lot (acres)The size of the land the home sits on, from county records.0.02
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Heat Pump
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 · 12 ft²

Transaction History(5)

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
Simmons-Pinckney Middle SchoolC-
Middle · Grades 6–8 · 0.2 mi
E
Julian Mitchell Elementary School
Elementary · Grades PK–5 · 0.2 mi
H
Burke High SchoolF
High · Grades 9–12 · 0.2 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

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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 Nunan 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.

  • Among the smallest lots in Westside
  • Older than 94% of homes in Charleston County

How it measures up in Charleston 29403

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

Living area1,538 ft²
SmallerTypical 1,545 ft²Bigger

Bigger than 50% of homes nearby

Lot size871 ft²
SmallerTypical 0.1 acBigger

Smaller than almost all homes nearby

Year built1940
OlderTypical 1938Newer

Newer than 58% of homes nearby

How 21 Nunan St ranks against every home in each area.
MeasureThis homeWestsideCharleston 29403Charleston County
Living areabigger than1,538 ft²47% of homes50% of homes42% of homes
Lot sizebigger than871 ft²almost no homesalmost no homesalmost no homes
Year builtnewer than194070% of homes58% of homes6% of homes

About 21 Nunan St

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

21 Nunan St, Charleston, SC last sold on Dec 7, 2021, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 21 Nunan St, Charleston, SC?

21 Nunan St, Charleston, SC has 4 bedrooms, 2 bathrooms, 1,538 square feet of living space and a 0.02-acre lot.

When was 21 Nunan St, Charleston, SC built?

21 Nunan St, Charleston, SC was built in 1940, making it 86 years old. It is a duplex single home. The building has 2 stories.

What schools serve 21 Nunan St, Charleston, SC?

21 Nunan St, Charleston, SC is assigned to Simmons-Pinckney Middle School (middle), rated C-; Julian Mitchell Elementary School (elementary); 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 Nunan St, Charleston, SC compare to other homes in Charleston 29403?

Among the 6,405 homes in Charleston 29403, it is bigger than 50% of them (1,538 ft² against a typical 1,545 ft²), its lot is bigger than almost none of them (871 ft² against a typical 0.1 ac) and it is newer than 58% of them (1940 against a typical 1938). 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 Nunan St, Charleston, SC?

The 2025 property tax bill for 21 Nunan St, Charleston, SC was $4,834. The county assessed it at $14,420.

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