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Single Family ResidenceResidential
$178,754$150 / 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 85How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $134,000 on Dec 11, 2020

20 MATTISON ST

WILLIAMSTON, SC 29697
0
Baths
1,194 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.
0.38 ac
Lot SizeThe size of the land the home sits on, from county records.
1
StoriesHow many floors the home has above ground.

Valuation

$179K
$152K low$206K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$134,000 · Dec 11, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,664 (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.$6,090 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$240
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$5,850
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$6,090
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$152,210

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyANDERSON
Lot (acres)The size of the land the home sits on, from county records.0.38
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(3)

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.

E
Palmetto Elementary School
Elementary · Grades PK–5 · 0.5 mi
H
Palmetto High SchoolB-
High · Grades 9–12 · 0.7 mi
M
Palmetto Middle SchoolB
Middle · Grades 6–8 · 0.8 mi

District: Anderson School District 1

Neighborhood · ZIP 29697These 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.61
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.84
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.97

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.16%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
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.13,320
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.337 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$67,613
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$88,149
Average tempThe average temperature here across a full year.61°F
Annual precipHow much rain and melted snow falls here in a typical year.52 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.61%

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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

20 Mattison 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 71% of homes in Anderson County
  • Smaller than 78% of homes in Williamston 29697
  • Has a smaller lot than 77% of homes in Williamston 29697

What homes are worth in Williamston 29697

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

This home
$54K$967K

This home is worth more than 32% of homes in Williamston 29697.

How it measures up in Williamston 29697

The dot is this home. The mark in the middle is the typical home in Williamston 29697.

Estimated value$178,754
CheaperTypical $235,129Pricier

Pricier than 32% of homes nearby

Price per ft²$150
CheaperTypical $151Pricier

Pricier than 49% of homes nearby

Living area1,194 ft²
SmallerTypical 1,554 ft²Bigger

Bigger than 22% of homes nearby

Lot size0.38 ac
SmallerTypical 0.63 acBigger

Bigger than 23% of homes nearby

How 20 Mattison St ranks against every home in each area.
MeasureThis homeWilliamston 29697Anderson County
Estimated valuepricier than$178,75432% of homes29% of homes
Price per ft²pricier than$15049% of homes48% of homes
Living areabigger than1,194 ft²22% of homes23% of homes
Lot sizebigger than0.38 ac23% of homes31% of homes

About 20 Mattison St

How much is 20 Mattison St, Williamston, SC worth?

The TopHap Estimate for 20 Mattison St, Williamston, SC is $178,754 as of Oct 21, 2026. The likely range is $151,820 to $205,688. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20 Mattison St, Williamston, SC last sell?

20 Mattison St, Williamston, SC last sold on Dec 11, 2020 for $134,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 20 Mattison St, Williamston, SC?

20 Mattison St, Williamston, SC has 1,194 square feet of living space and a 0.38-acre lot.

What schools serve 20 Mattison St, Williamston, SC?

20 Mattison St, Williamston, SC is assigned to Palmetto Elementary School (elementary); Palmetto High School (high), rated B-; Palmetto Middle School (middle), rated B. All sit in Anderson School District 1. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20 Mattison St, Williamston, SC compare to other homes in Williamston 29697?

Among the 5,196 homes in Williamston 29697, it is worth more than 32% of them ($178,754 against a typical $235,129), its price per square foot is higher than 49% of them ($150 against a typical $151), it is bigger than 22% of them (1,194 ft² against a typical 1,554 ft²) and its lot is bigger than 23% of them (0.38 ac against a typical 0.63 ac). Measured against all of Anderson County, it is worth more than 29% 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 20 Mattison St, Williamston, SC?

The 2025 property tax bill for 20 Mattison St, Williamston, SC was $1,664. The county assessed it at $6,090.

More homes on Mattison St

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More homes in Williamston 29697

Assigned schools

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