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Single Family ResidenceResidential
$1,394,729$557 / 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 93How 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

1121 SAINT THOMAS ISLAND DR

CHARLESTON, SC 29492
0
Baths
2,504 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.
0.9 ac
Lot SizeThe size of the land the home sits on, from county records.
1997
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$1.4M
$1.3M low$1.5M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,743 (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.$446,344 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$254,146
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$192,198
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$17,854
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$758,700

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.72 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.96%
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
CountyBERKELEY
Lot (acres)The size of the land the home sits on, from county records.0.90
FireplaceWhether the home has a fireplace, and what kind.Yes
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 · 54 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
Daniel Island SchoolA-
Elementary · Grades KG–8 · 1.7 mi
H
Philip Simmons High SchoolB+
High · Grades 9–12 · 5.3 mi

District: Berkeley County School District

Neighborhood · ZIP 29492These 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.90
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.363

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.88%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.44%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.21,562
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.363 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$112,226
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$153,008
Average tempThe average temperature here across a full year.66°F
Annual precipHow much rain and melted snow falls here in a typical year.50 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

1121 Saint Thomas Island Dr 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 97% of homes in Berkeley County
  • Costs more per square foot than 97% of homes in Berkeley County
  • Bigger than 79% of homes in Berkeley County
  • Has a bigger lot than 94% of homes in Charleston 29492
  • Older than 98% of homes in Charleston 29492

What homes are worth in Charleston 29492

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

This home
$336K$4.3M

This home is worth more than 65% of homes in Charleston 29492.

How it measures up in Charleston 29492

The dot is this home. The mark in the middle is the typical home in Charleston 29492.

Estimated value$1,394,729
CheaperTypical $1,028,877Pricier

Pricier than 65% of homes nearby

Price per ft²$557
CheaperTypical $473Pricier

Pricier than 66% of homes nearby

Living area2,504 ft²
SmallerTypical 2,470 ft²Bigger

Bigger than 51% of homes nearby

Lot size0.9 ac
SmallerTypical 0.18 acBigger

Bigger than 94% of homes nearby

Year built1997
OlderTypical 2008Newer

Newer than 2% of homes nearby

How 1121 Saint Thomas Island Dr ranks against every home in each area.
MeasureThis homeCharleston 29492Berkeley County
Estimated valuepricier than$1,394,72965% of homes97% of homes
Price per ft²pricier than$55766% of homes97% of homes
Living areabigger than2,504 ft²51% of homes79% of homes
Lot sizebigger than0.9 ac94% of homes86% of homes
Year builtnewer than19972% of homes21% of homes

About 1121 Saint Thomas Island Dr

How much is 1121 Saint Thomas Island Dr, Charleston, SC worth?

The TopHap Estimate for 1121 Saint Thomas Island Dr, Charleston, SC is $1,394,729 as of Aug 30, 2026. The likely range is $1,291,187 to $1,498,271. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1121 Saint Thomas Island Dr, Charleston, SC last sell?

1121 Saint Thomas Island Dr, Charleston, SC last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 1121 Saint Thomas Island Dr, Charleston, SC?

1121 Saint Thomas Island Dr, Charleston, SC has 2,504 square feet of living space and a 0.90-acre lot.

When was 1121 Saint Thomas Island Dr, Charleston, SC built?

1121 Saint Thomas Island Dr, Charleston, SC was built in 1997, making it 29 years old. The building has 1 story.

What schools serve 1121 Saint Thomas Island Dr, Charleston, SC?

1121 Saint Thomas Island Dr, Charleston, SC is assigned to Daniel Island School (elementary), rated A-; Philip Simmons High School (high), rated B+. All sit in Berkeley County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1121 Saint Thomas Island Dr, Charleston, SC compare to other homes in Charleston 29492?

Among the 7,006 homes in Charleston 29492, it is worth more than 65% of them ($1,394,729 against a typical $1,028,877), its price per square foot is higher than 66% of them ($557 against a typical $473), it is bigger than 51% of them (2,504 ft² against a typical 2,470 ft²), its lot is bigger than 94% of them (0.9 ac against a typical 0.18 ac) and it is newer than 2% of them (1997 against a typical 2008). Measured against all of Berkeley County, it is worth more than 97% 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 1121 Saint Thomas Island Dr, Charleston, SC?

The 2025 property tax bill for 1121 Saint Thomas Island Dr, Charleston, SC was $1,743. The county assessed it at $446,344.

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