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Single Family ResidenceResidential
$630,898$524 / 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 Sep 24, 2026

1550 GRIMBALL ROAD EXT

CHARLESTON, SC 29412
3
Beds
1
Baths
1,204 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.
10.38 ac
Lot SizeThe size of the land the home sits on, from county records.
1950
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$631K
$579K low$682K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,667 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$5,240 (2024)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$5,240
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$305,300

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.62
81
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
35
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.
66
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.76 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.84%
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.Bungalow
CountyCharleston
Lot (acres)The size of the land the home sits on, from county records.10.38
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Mat/Raft Foundation (Slab)
HeatingThe type of heating system in the home.Radiant
CoolingThe type of cooling or air conditioning in the home.None
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 · 150 ft²

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
James Island Elementary SchoolA-
Elementary · Grades PK–5 · 0.8 mi
M
Camp Road Middle SchoolA-
Middle · Grades 6–8 · 2.1 mi
H
James Island Charter High SchoolA+
High · Grades 9–12 · 2.5 mi

District: Charleston County School District

Neighborhood · ZIP 29412These 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.75
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.81
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.326

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.91%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.39%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.2%
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.42,648
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.840 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$101,186
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$128,717
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%

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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

1550 Grimball Road Ext 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.

  • Costs more per square foot than 90% of homes in Charleston 29412
  • Smaller than 78% of homes in Charleston 29412
  • Has a bigger lot than 98% of homes in Charleston 29412
  • Older than 94% of homes in Charleston 29412

What homes are worth in Charleston 29412

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

This home
$238K$1.9M

This home is worth more than 54% of homes in Charleston 29412.

How it measures up in Charleston 29412

The dot is this home. The mark in the middle is the typical home in Charleston 29412.

Estimated value$630,898
CheaperTypical $605,917Pricier

Pricier than 54% of homes nearby

Price per ft²$524
CheaperTypical $374Pricier

Pricier than 90% of homes nearby

Living area1,204 ft²
SmallerTypical 1,620 ft²Bigger

Bigger than 22% of homes nearby

Lot size10.38 ac
SmallerTypical 0.29 acBigger

Bigger than 98% of homes nearby

Year built1950
OlderTypical 1985Newer

Newer than 6% of homes nearby

How 1550 Grimball Road Ext ranks against every home in each area.
MeasureThis homeCharleston 29412Charleston County
Estimated valuepricier than$630,89854% of homes51% of homes
Price per ft²pricier than$52490% of homes77% of homes
Living areabigger than1,204 ft²22% of homes22% of homes
Lot sizebigger than10.38 ac98% of homes98% of homes
Year builtnewer than19506% of homes11% of homes

About 1550 Grimball Road Ext

How much is 1550 Grimball Road Ext, Charleston, SC worth?

The TopHap Estimate for 1550 Grimball Road Ext, Charleston, SC is $630,898 as of Sep 24, 2026. The likely range is $579,379 to $682,417. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1550 Grimball Road Ext, Charleston, SC last sell?

1550 Grimball Road Ext, Charleston, SC last sold on Jan 1, 1904, according to the county's recorded deed.

How big is 1550 Grimball Road Ext, Charleston, SC?

1550 Grimball Road Ext, Charleston, SC has 3 bedrooms, 1 bathrooms, 1,204 square feet of living space and a 10.38-acre lot.

When was 1550 Grimball Road Ext, Charleston, SC built?

1550 Grimball Road Ext, Charleston, SC was built in 1950, making it 76 years old. It is a bungalow home. The building has 1 story.

What schools serve 1550 Grimball Road Ext, Charleston, SC?

1550 Grimball Road Ext, Charleston, SC is assigned to James Island Elementary School (elementary), rated A-; Camp Road Middle School (middle), rated A-; James Island Charter High School (high), rated A+. All sit in Charleston County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1550 Grimball Road Ext, Charleston, SC compare to other homes in Charleston 29412?

Among the 16,514 homes in Charleston 29412, it is worth more than 54% of them ($630,898 against a typical $605,917), its price per square foot is higher than 90% of them ($524 against a typical $374), it is bigger than 22% of them (1,204 ft² against a typical 1,620 ft²), its lot is bigger than 98% of them (10.38 ac against a typical 0.29 ac) and it is newer than 6% of them (1950 against a typical 1985). Measured against all of Charleston County, it is worth more than 51% 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 1550 Grimball Road Ext, Charleston, SC?

The 2024 property tax bill for 1550 Grimball Road Ext, Charleston, SC was $1,667. The county assessed it at $5,240.

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