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Single Family ResidenceResidential
$4,223,956$641 / 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 82How 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 $1,275,000 on Jun 15, 2017

21 MASON ST

BLUFFTON, SC 29910
7
Beds
16 / 8
Baths
6,588 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.
0.62 ac
Lot SizeThe size of the land the home sits on, from county records.
2009
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
19
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$4.2M
$3.5M low$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.$1,275,000 · Jun 15, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$53,384 (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.$187,230 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$187,230
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$3,969,100

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.12 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.26%

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
CountyBeaufort
Lot (acres)The size of the land the home sits on, from county records.0.62
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
HeatingThe type of heating system in the home.Heat Pump
FireplaceWhether the home has a fireplace, and what kind.Yes

Transaction History(5)

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
H. E. McCracken Middle SchoolA+
Middle · Grades 6–8 · 3.0 mi
H
May River High SchoolB-
High · Grades 9–12 · 5.1 mi
E
Pritchardville Elementary School
Elementary · Grades PK–5 · 5.7 mi

District: Beaufort County School District

Neighborhood · ZIP 29910These 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.58
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.82
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.107

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.6%
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.53,449
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.427 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$92,493
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$123,092
Average tempThe average temperature here across a full year.66°F
Annual precipHow much rain and melted snow falls here in a typical year.53 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

21 Mason 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.

  • Among the most valuable homes in Beaufort County
  • Costs more per square foot than 93% of homes in Bluffton 29910
  • Among the largest homes in Bluffton 29910
  • Has a bigger lot than 86% of homes in Bluffton 29910
  • Older than 84% of homes in Palmetto Bluff

What homes are worth in Bluffton 29910

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

This home
$164K$4.1M

This home is worth more than 98% of homes in Bluffton 29910.

How it measures up in Bluffton 29910

The dot is this home. The mark in the middle is the typical home in Bluffton 29910.

Estimated value$4,223,956
CheaperTypical $532,100Pricier

Pricier than 98% of homes nearby

Price per ft²$641
CheaperTypical $264Pricier

Pricier than 93% of homes nearby

Living area6,588 ft²
SmallerTypical 2,147 ft²Bigger

Bigger than almost all homes nearby

Lot size0.62 ac
SmallerTypical 0.23 acBigger

Bigger than 86% of homes nearby

Year built2009
OlderTypical 2006Newer

Newer than 63% of homes nearby

How 21 Mason St ranks against every home in each area.
MeasureThis homePalmetto BluffBluffton 29910Beaufort County
Estimated valuepricier than$4,223,95673% of homes98% of homesalmost all homes
Price per ft²pricier than$64111% of homes93% of homes90% of homes
Living areabigger than6,588 ft²92% of homesalmost all homesalmost all homes
Lot sizebigger than0.62 ac69% of homes86% of homes77% of homes
Year builtnewer than200916% of homes63% of homes81% of homes

About 21 Mason St

How much is 21 Mason St, Bluffton, SC worth?

The TopHap Estimate for 21 Mason St, Bluffton, SC is $4,223,956 as of Sep 24, 2026. The likely range is $3,464,272 to $4,983,640. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Mason St, Bluffton, SC last sell?

21 Mason St, Bluffton, SC last sold on Jun 15, 2017 for $1,275,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 21 Mason St, Bluffton, SC?

21 Mason St, Bluffton, SC has 7 bedrooms, 16 bathrooms, 6,588 square feet of living space and a 0.62-acre lot.

When was 21 Mason St, Bluffton, SC built?

21 Mason St, Bluffton, SC was built in 2009, making it 17 years old. The building has 2 stories.

What schools serve 21 Mason St, Bluffton, SC?

21 Mason St, Bluffton, SC is assigned to H. E. McCracken Middle School (middle), rated A+; May River High School (high), rated B-; Pritchardville Elementary School (elementary). All sit in Beaufort County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Mason St, Bluffton, SC compare to other homes in Bluffton 29910?

Among the 21,585 homes in Bluffton 29910, it is worth more than 98% of them ($4,223,956 against a typical $532,100), its price per square foot is higher than 93% of them ($641 against a typical $264), it is bigger than almost all of them (6,588 ft² against a typical 2,147 ft²), its lot is bigger than 86% of them (0.62 ac against a typical 0.23 ac) and it is newer than 63% of them (2009 against a typical 2006). Measured against all of Beaufort 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 21 Mason St, Bluffton, SC?

The 2025 property tax bill for 21 Mason St, Bluffton, SC was $53,384. The county assessed it at $187,230.

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