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Single Family ResidenceResidential
$44,308$53 / 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 92How 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 $5,000 on Feb 20, 2007

405 DUNCAN AVE

BUFFALO, SC 29321
1
Baths
836 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.
0.74 ac
Lot SizeThe size of the land the home sits on, from county records.
1
StoriesHow many floors the home has above ground.

Valuation

$44K
$41K low$48K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$5,000 · Feb 20, 2007

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$303 (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.$930 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$290
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$640
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$15,520
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$31,000

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.45
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
14
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
83
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
94
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
37
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

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
CountyUNION
Lot (acres)The size of the land the home sits on, from county records.0.74
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

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
Buffalo Elementary SchoolF
Elementary · Grades PK–5 · 0.5 mi
H
Union County High SchoolD+
High · Grades 9–12 · 3.9 mi
M
Sims Middle SchoolB-
Middle · Grades 6–8 · 4.4 mi

District: Union County School District

Neighborhood · ZIP 29321These 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.104
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.94
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.99

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.89%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.12%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.27%
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.2,034
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.53 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$41,337
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$54,880
Average tempThe average temperature here across a full year.60°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.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

405 Duncan Ave 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 least valuable homes in Union County
  • Costs less per square foot than 95% of homes in Union County
  • Smaller than 89% of homes in Buffalo 29321
  • Has a smaller lot than 87% of homes in Buffalo 29321

What homes are worth in Buffalo 29321

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

This home
$41K$544K

This home is worth more than 4% of homes in Buffalo 29321.

How it measures up in Buffalo 29321

The dot is this home. The mark in the middle is the typical home in Buffalo 29321.

Estimated value$44,308
CheaperTypical $135,950Pricier

Pricier than 4% of homes nearby

Price per ft²$53
CheaperTypical $107Pricier

Pricier than 15% of homes nearby

Living area836 ft²
SmallerTypical 1,215 ft²Bigger

Bigger than 11% of homes nearby

Lot size0.74 ac
SmallerTypical 3.29 acBigger

Bigger than 13% of homes nearby

How 405 Duncan Ave ranks against every home in each area.
MeasureThis homeBuffalo 29321Union County
Estimated valuepricier than$44,3084% of homesalmost no homes
Price per ft²pricier than$5315% of homes5% of homes
Living areabigger than836 ft²11% of homes11% of homes
Lot sizebigger than0.74 ac13% of homes14% of homes

About 405 Duncan Ave

How much is 405 Duncan Ave, Buffalo, SC worth?

The TopHap Estimate for 405 Duncan Ave, Buffalo, SC is $44,308 as of Jul 14, 2026. The likely range is $40,704 to $47,912. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 405 Duncan Ave, Buffalo, SC last sell?

405 Duncan Ave, Buffalo, SC last sold on Feb 20, 2007 for $5,000, according to the county's recorded deed.

How big is 405 Duncan Ave, Buffalo, SC?

405 Duncan Ave, Buffalo, SC has 1 bathrooms, 836 square feet of living space and a 0.74-acre lot.

What schools serve 405 Duncan Ave, Buffalo, SC?

405 Duncan Ave, Buffalo, SC is assigned to Buffalo Elementary School (elementary), rated F; Union County High School (high), rated D+; Sims Middle School (middle), rated B-. All sit in Union County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 405 Duncan Ave, Buffalo, SC compare to other homes in Buffalo 29321?

Among the 1,293 homes in Buffalo 29321, it is worth more than 4% of them ($44,308 against a typical $135,950), its price per square foot is higher than 15% of them ($53 against a typical $107), it is bigger than 11% of them (836 ft² against a typical 1,215 ft²) and its lot is bigger than 13% of them (0.74 ac against a typical 3.29 ac). Measured against all of Union County, it is worth more than almost no 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 405 Duncan Ave, Buffalo, SC?

The 2025 property tax bill for 405 Duncan Ave, Buffalo, SC was $303. The county assessed it at $930.

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