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Single Family ResidenceResidential
$253,130$166 / 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 91How 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 $160,000 on Oct 28, 2021

640 N WALNUT ST

SENECA, SC 29678
3
Beds
1.5
Baths
1,521 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.
1.57 ac
Lot SizeThe size of the land the home sits on, from county records.
1967
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$253K
$229K low$277K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$160,000 · Oct 28, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,640 (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.$6,249 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,051
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$5,198
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$156,230

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.56
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
11
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
87
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
97
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
84
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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
CountyOCONEE
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2000
Lot (acres)The size of the land the home sits on, from county records.1.57
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.No Foundation
RoofThe main material covering the roof, such as asphalt shingle or tile.Shingle
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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
Northside Elementary School
Elementary · Grades PK–5 · 0.4 mi
M
Seneca Middle SchoolB-
Middle · Grades 6–8 · 1.6 mi
H
Seneca High SchoolC
High · Grades 9–12 · 2.5 mi

District: Oconee County School District

Neighborhood · ZIP 29678These 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.125
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.93
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.88

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.88%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.15%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.19%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.24,812
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.292 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$52,651
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$70,440
Average tempThe average temperature here across a full year.61°F
Annual precipHow much rain and melted snow falls here in a typical year.54 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

640 N Walnut 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.

  • Has a bigger lot than 77% of homes in Seneca 29678
  • Older than 80% of homes in Oconee County

What homes are worth in Seneca 29678

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

This home
$64K$837K

This home is worth more than 54% of homes in Seneca 29678.

How it measures up in Seneca 29678

The dot is this home. The mark in the middle is the typical home in Seneca 29678.

Estimated value$253,130
CheaperTypical $240,349Pricier

Pricier than 54% of homes nearby

Price per ft²$166
CheaperTypical $165Pricier

Pricier than 51% of homes nearby

Living area1,521 ft²
SmallerTypical 1,460 ft²Bigger

Bigger than 54% of homes nearby

Lot size1.57 ac
SmallerTypical 0.61 acBigger

Bigger than 77% of homes nearby

Year built1967
OlderTypical 1989Newer

Newer than 26% of homes nearby

How 640 N Walnut St ranks against every home in each area.
MeasureThis homeSeneca 29678Oconee County
Estimated valuepricier than$253,13054% of homes46% of homes
Price per ft²pricier than$16651% of homes40% of homes
Living areabigger than1,521 ft²54% of homes49% of homes
Lot sizebigger than1.57 ac77% of homes67% of homes
Year builtnewer than196726% of homes20% of homes

About 640 N Walnut St

How much is 640 N Walnut St, Seneca, SC worth?

The TopHap Estimate for 640 N Walnut St, Seneca, SC is $253,130 as of Sep 24, 2026. The likely range is $229,274 to $276,986. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 640 N Walnut St, Seneca, SC last sell?

640 N Walnut St, Seneca, SC last sold on Oct 28, 2021 for $160,000, according to the county's recorded deed.

How big is 640 N Walnut St, Seneca, SC?

640 N Walnut St, Seneca, SC has 3 bedrooms, 1.5 bathrooms, 1,521 square feet of living space and a 1.57-acre lot.

When was 640 N Walnut St, Seneca, SC built?

640 N Walnut St, Seneca, SC was built in 1967, making it 59 years old. It is a ranch home. The building has 1 story.

What schools serve 640 N Walnut St, Seneca, SC?

640 N Walnut St, Seneca, SC is assigned to Northside Elementary School (elementary); Seneca Middle School (middle), rated B-; Seneca High School (high), rated C. All sit in Oconee County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 640 N Walnut St, Seneca, SC compare to other homes in Seneca 29678?

Among the 10,986 homes in Seneca 29678, it is worth more than 54% of them ($253,130 against a typical $240,349), its price per square foot is higher than 51% of them ($166 against a typical $165), it is bigger than 54% of them (1,521 ft² against a typical 1,460 ft²), its lot is bigger than 77% of them (1.57 ac against a typical 0.61 ac) and it is newer than 26% of them (1967 against a typical 1989). Measured against all of Oconee County, it is worth more than 46% 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 640 N Walnut St, Seneca, SC?

The 2025 property tax bill for 640 N Walnut St, Seneca, SC was $2,640. The county assessed it at $6,249.

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