Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$340,414$247 / 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 Jul 14, 2026
Last sold for $194,000 on Sep 2, 2014

3996 RIVER RD

JOHNS ISLAND, SC 29455
3
Beds
2 / 1
Baths
1,378 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.
0.89 ac
Lot SizeThe size of the land the home sits on, from county records.
1970
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$340K
$316K low$364K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$194,000 · Sep 2, 2014

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$858 (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.$7,190 (2024)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$7,190
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$179,700

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.116 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.89%

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.Ranch
CountyCharleston
Lot (acres)The size of the land the home sits on, from county records.0.89
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.Heat Pump
CoolingThe type of cooling or air conditioning in the home.Yes
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.Deck · 100 ft²Patio · 100 ft²Porch · 136 ft²

Transaction History(2)

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
Haut Gap Middle SchoolA-
Middle · Grades 6–8 · 4.2 mi
E
Angel Oak Elementary School
Elementary · Grades PK–1 · 4.7 mi
H
St. John's High SchoolF
High · Grades 9–12 · 4.7 mi

District: Charleston County School District

Neighborhood · ZIP 29455These 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.97
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.320

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.76%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.8%
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.31,902
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.269 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$106,043
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$141,063
Average tempThe average temperature here across a full year.66°F
Annual precipHow much rain and melted snow falls here in a typical year.49 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

3996 River Rd 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 94% of homes in Johns Island 29455
  • Costs less per square foot than 87% of homes in Johns Island 29455
  • Smaller than 74% of homes in Johns Island 29455
  • Has a bigger lot than 88% of homes in Charleston County
  • Older than 92% of homes in Johns Island 29455

What homes are worth in Johns Island 29455

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

This home
$286K$5.5M

This home is worth more than 6% of homes in Johns Island 29455.

How it measures up in Johns Island 29455

The dot is this home. The mark in the middle is the typical home in Johns Island 29455.

Estimated value$340,414
CheaperTypical $707,112Pricier

Pricier than 6% of homes nearby

Price per ft²$247
CheaperTypical $366Pricier

Pricier than 13% of homes nearby

Living area1,378 ft²
SmallerTypical 2,030 ft²Bigger

Bigger than 26% of homes nearby

Lot size0.89 ac
SmallerTypical 0.34 acBigger

Bigger than 80% of homes nearby

Year built1970
OlderTypical 2002Newer

Newer than 8% of homes nearby

How 3996 River Rd ranks against every home in each area.
MeasureThis homeJohns Island 29455Charleston County
Estimated valuepricier than$340,4146% of homes18% of homes
Price per ft²pricier than$24713% of homes21% of homes
Living areabigger than1,378 ft²26% of homes33% of homes
Lot sizebigger than0.89 ac80% of homes88% of homes
Year builtnewer than19708% of homes27% of homes

About 3996 River Rd

How much is 3996 River Rd, Johns Island, SC worth?

The TopHap Estimate for 3996 River Rd, Johns Island, SC is $340,414 as of Jul 14, 2026. The likely range is $316,469 to $364,359. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3996 River Rd, Johns Island, SC last sell?

3996 River Rd, Johns Island, SC last sold on Sep 2, 2014 for $194,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 3996 River Rd, Johns Island, SC?

3996 River Rd, Johns Island, SC has 3 bedrooms, 2 bathrooms, 1,378 square feet of living space and a 0.89-acre lot.

When was 3996 River Rd, Johns Island, SC built?

3996 River Rd, Johns Island, SC was built in 1970, making it 56 years old. It is a ranch home. The building has 1 story.

What schools serve 3996 River Rd, Johns Island, SC?

3996 River Rd, Johns Island, SC is assigned to Haut Gap Middle School (middle), rated A-; Angel Oak Elementary School (elementary); St. John's 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 3996 River Rd, Johns Island, SC compare to other homes in Johns Island 29455?

Among the 18,775 homes in Johns Island 29455, it is worth more than 6% of them ($340,414 against a typical $707,112), its price per square foot is higher than 13% of them ($247 against a typical $366), it is bigger than 26% of them (1,378 ft² against a typical 2,030 ft²), its lot is bigger than 80% of them (0.89 ac against a typical 0.34 ac) and it is newer than 8% of them (1970 against a typical 2002). Measured against all of Charleston County, it is worth more than 18% 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 3996 River Rd, Johns Island, SC?

The 2024 property tax bill for 3996 River Rd, Johns Island, SC was $858. The county assessed it at $7,190.

More homes on River Rd

Closest homes

More homes in Johns Island 29455

Assigned schools

Explore the area

See this home in context

Open 3996 River Rd 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