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Single Family ResidenceResidential
$3,128,961$456 / 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 90How 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
Last sold for $2,900,000 on Jan 22, 2026

421 ROYAL ASSEMBLY DR

CHARLESTON, SC 29492
0
Baths
6,867 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.
0.8 ac
Lot SizeThe size of the land the home sits on, from county records.
2006
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$3.1M
$2.8M low$3.5M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$2,900,000 · Jan 22, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$231 (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.$1,388,361 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$267,551
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,120,810
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$55,534
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,816,200

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.180 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.49%
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.0.80
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.Yes
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 320 ft²Porch · 1,718 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.

M
Philip Simmons Middle SchoolA-
Middle · Grades 5–8 · 2.5 mi
E
Philip Simmons Elementary SchoolB+
Elementary · Grades PK–4 · 2.5 mi
H
Philip Simmons High SchoolB+
High · Grades 9–12 · 3.1 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

421 Royal Assembly 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.

  • Among the most valuable homes in Berkeley County
  • Costs more per square foot than 95% of homes in Berkeley County
  • Among the largest homes in Berkeley County
  • Has a bigger lot than 94% 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
$338K$4.4M

This home is worth more than 93% 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$3,128,961
CheaperTypical $1,019,139Pricier

Pricier than 93% of homes nearby

Price per ft²$456
CheaperTypical $469Pricier

Pricier than 47% of homes nearby

Living area6,867 ft²
SmallerTypical 2,470 ft²Bigger

Bigger than almost all homes nearby

Lot size0.8 ac
SmallerTypical 0.18 acBigger

Bigger than 94% of homes nearby

Year built2006
OlderTypical 2007Newer

Newer than 43% of homes nearby

How 421 Royal Assembly Dr ranks against every home in each area.
MeasureThis homeCharleston 29492Berkeley County
Estimated valuepricier than$3,128,96193% of homesalmost all homes
Price per ft²pricier than$45647% of homes95% of homes
Living areabigger than6,867 ft²almost all homesalmost all homes
Lot sizebigger than0.8 ac94% of homes85% of homes
Year builtnewer than200643% of homes38% of homes

About 421 Royal Assembly Dr

How much is 421 Royal Assembly Dr, Charleston, SC worth?

The TopHap Estimate for 421 Royal Assembly Dr, Charleston, SC is $3,128,961 as of Sep 24, 2026. The likely range is $2,802,680 to $3,455,242. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 Royal Assembly Dr, Charleston, SC last sell?

421 Royal Assembly Dr, Charleston, SC last sold on Jan 22, 2026 for $2,900,000, according to the county's recorded deed.

How big is 421 Royal Assembly Dr, Charleston, SC?

421 Royal Assembly Dr, Charleston, SC has 6,867 square feet of living space and a 0.80-acre lot.

When was 421 Royal Assembly Dr, Charleston, SC built?

421 Royal Assembly Dr, Charleston, SC was built in 2006, making it 20 years old. The building has 1 story.

What schools serve 421 Royal Assembly Dr, Charleston, SC?

421 Royal Assembly Dr, Charleston, SC is assigned to Philip Simmons Middle School (middle), rated A-; Philip Simmons Elementary School (elementary), rated B+; 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 421 Royal Assembly Dr, Charleston, SC compare to other homes in Charleston 29492?

Among the 7,006 homes in Charleston 29492, it is worth more than 93% of them ($3,128,961 against a typical $1,019,139), its price per square foot is higher than 47% of them ($456 against a typical $469), it is bigger than almost all of them (6,867 ft² against a typical 2,470 ft²), its lot is bigger than 94% of them (0.8 ac against a typical 0.18 ac) and it is newer than 43% of them (2006 against a typical 2007). Measured against all of Berkeley County, it is worth more than almost all 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 421 Royal Assembly Dr, Charleston, SC?

The 2025 property tax bill for 421 Royal Assembly Dr, Charleston, SC was $231. The county assessed it at $1,388,361.

More homes on Royal Assembly Dr

Closest homes

More homes in Charleston 29492

Assigned schools

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