Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$495,639$251 / 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 68How 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

438 ISAAC BOSTON ST

MT PLEASANT, SC 29464
3
Beds
2
Baths
1,978 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.
1.22 ac
Lot SizeThe size of the land the home sits on, from county records.
2000
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$496K
$338K low$653K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$846 (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.$8,600 (2024)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$8,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$296,935

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.24 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.62%

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
CountyCharleston
Lot (acres)The size of the land the home sits on, from county records.1.22
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
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 · 28 ft²Patio · 28 ft²Porch · 196 ft²

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

E
Belle Hall Elementary SchoolA+
Elementary · Grades PK–5 · 0.8 mi
H
Lucy Garrett Beckham High SchoolA
High · Grades 9–12 · 1.6 mi
M
Laing Middle School of Science and TechnologyA
Middle · Grades 6–8 · 2.7 mi

District: Charleston County School District

Neighborhood · ZIP 29464These 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.69
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.344

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.42%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.0%
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.54,918
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,518 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$111,069
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$147,355
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

438 Isaac Boston 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.

  • Worth less than 85% of homes in Mount Pleasant 29464
  • Among the lowest price per square foot in Mount Pleasant 29464
  • Has a bigger lot than 96% of homes in Mount Pleasant 29464
  • Newer than 77% of homes in Mount Pleasant 29464

What homes are worth in Mount Pleasant 29464

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

This home
$339K$3.8M

This home is worth more than 15% of homes in Mount Pleasant 29464.

How it measures up in Mount Pleasant 29464

The dot is this home. The mark in the middle is the typical home in Mount Pleasant 29464.

Estimated value$495,639
CheaperTypical $970,425Pricier

Pricier than 15% of homes nearby

Price per ft²$251
CheaperTypical $469Pricier

Cheaper than almost all homes nearby

Living area1,978 ft²
SmallerTypical 1,926 ft²Bigger

Bigger than 52% of homes nearby

Lot size1.22 ac
SmallerTypical 0.26 acBigger

Bigger than 96% of homes nearby

Year built2000
OlderTypical 1988Newer

Newer than 77% of homes nearby

How 438 Isaac Boston St ranks against every home in each area.
MeasureThis homeMount Pleasant 29464Charleston County
Estimated valuepricier than$495,63915% of homes37% of homes
Price per ft²pricier than$251almost no homes22% of homes
Living areabigger than1,978 ft²52% of homes62% of homes
Lot sizebigger than1.22 ac96% of homes92% of homes
Year builtnewer than200077% of homes66% of homes

About 438 Isaac Boston St

How much is 438 Isaac Boston St, Mt Pleasant, SC worth?

The TopHap Estimate for 438 Isaac Boston St, Mt Pleasant, SC is $495,639 as of Aug 30, 2026. The likely range is $337,830 to $653,448. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 438 Isaac Boston St, Mt Pleasant, SC last sell?

438 Isaac Boston St, Mt Pleasant, SC last sold on Oct 22, 1999, according to the county's recorded deed.

How big is 438 Isaac Boston St, Mt Pleasant, SC?

438 Isaac Boston St, Mt Pleasant, SC has 3 bedrooms, 2 bathrooms, 1,978 square feet of living space and a 1.22-acre lot.

When was 438 Isaac Boston St, Mt Pleasant, SC built?

438 Isaac Boston St, Mt Pleasant, SC was built in 2000, making it 26 years old. The building has 2 stories.

What schools serve 438 Isaac Boston St, Mt Pleasant, SC?

438 Isaac Boston St, Mt Pleasant, SC is assigned to Belle Hall Elementary School (elementary), rated A+; Lucy Garrett Beckham High School (high), rated A; Laing Middle School of Science and Technology (middle), rated A. All sit in Charleston County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 438 Isaac Boston St, Mt Pleasant, SC compare to other homes in Mount Pleasant 29464?

Among the 19,180 homes in Mount Pleasant 29464, it is worth more than 15% of them ($495,639 against a typical $970,425), its price per square foot is higher than almost none of them ($251 against a typical $469), it is bigger than 52% of them (1,978 ft² against a typical 1,926 ft²), its lot is bigger than 96% of them (1.22 ac against a typical 0.26 ac) and it is newer than 77% of them (2000 against a typical 1988). Measured against all of Charleston County, it is worth more than 37% 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 438 Isaac Boston St, Mt Pleasant, SC?

The 2024 property tax bill for 438 Isaac Boston St, Mt Pleasant, SC was $846. The county assessed it at $8,600.

More homes on Isaac Boston St

Closest homes

More homes in Mt Pleasant 29464

Assigned schools

Explore the area

See this home in context

Open 438 Isaac Boston St 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