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Single Family ResidenceResidential
$365,869$366 / 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 57How 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

21783 UNION RD

SOUTH FULTON, GA 30331
2
Beds
1
Baths
1,000 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.
41 ac
Lot SizeThe size of the land the home sits on, from county records.
1955
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$366K
$210K low$522K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,199 (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.$83,040 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$63,520
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$19,520
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$83,040
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$207,600

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.61
84
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
17
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.
87
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
31
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.89 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%

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.Conventional
CountyFULTON
ConstructionThe main material the home's frame and walls are built from.Brick
HeatingThe type of heating system in the home.Heat Pump
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
ViewThe type of view from the property, or another feature of the site that affects value.Neighborhood / Spot

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.

H
Westlake High SchoolC+
High · Grades 9–12 · 0.4 mi
M
Sandtown Middle SchoolB
Middle · Grades 6–8 · 1.1 mi
E
Stonewall Tell Elementary SchoolC+
Elementary · Grades PK–5 · 2.1 mi

District: Fulton County School District

Neighborhood · ZIP 30331These 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.94
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.81
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.51

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.59,108
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,547 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$73,762
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$93,469
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

21783 Union Rd 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 more than 76% of homes in Atlanta 30331
  • Among the highest price per square foot in Atlanta 30331
  • Smaller than 93% of homes in Atlanta 30331
  • Among the largest lots in Atlanta 30331
  • Older than 94% of homes in Atlanta 30331

What homes are worth in Atlanta 30331

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

This home
$117K$600K

This home is worth more than 76% of homes in Atlanta 30331.

How it measures up in Atlanta 30331

The dot is this home. The mark in the middle is the typical home in Atlanta 30331.

Estimated value$365,869
CheaperTypical $262,062Pricier

Pricier than 76% of homes nearby

Price per ft²$366
CheaperTypical $138Pricier

Pricier than almost all homes nearby

Living area1,000 ft²
SmallerTypical 1,752 ft²Bigger

Bigger than 7% of homes nearby

Lot size41 ac
SmallerTypical 0.29 acBigger

Bigger than almost all homes nearby

Year built1955
OlderTypical 1997Newer

Newer than 6% of homes nearby

How 21783 Union Rd ranks against every home in each area.
MeasureThis homeAtlanta 30331Fulton County
Estimated valuepricier than$365,86976% of homes44% of homes
Price per ft²pricier than$366almost all homes84% of homes
Living areabigger than1,000 ft²7% of homes10% of homes
Lot sizebigger than41 acalmost all homesalmost all homes
Year builtnewer than19556% of homes18% of homes

About 21783 Union Rd

How much is 21783 Union Rd, South Fulton, GA worth?

The TopHap Estimate for 21783 Union Rd, South Fulton, GA is $365,869 as of Sep 24, 2026. The likely range is $210,198 to $521,540. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21783 Union Rd, South Fulton, GA last sell?

21783 Union Rd, South Fulton, GA last sold on Mar 16, 2023, according to the county's recorded deed.

How big is 21783 Union Rd, South Fulton, GA?

21783 Union Rd, South Fulton, GA has 2 bedrooms, 1 bathrooms and 1,000 square feet of living space.

When was 21783 Union Rd, South Fulton, GA built?

21783 Union Rd, South Fulton, GA was built in 1955, making it 71 years old. It is a conventional home. The building has 1 story.

What schools serve 21783 Union Rd, South Fulton, GA?

21783 Union Rd, South Fulton, GA is assigned to Westlake High School (high), rated C+; Sandtown Middle School (middle), rated B; Stonewall Tell Elementary School (elementary), rated C+. All sit in Fulton County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21783 Union Rd, South Fulton, GA compare to other homes in Atlanta 30331?

Among the 19,367 homes in Atlanta 30331, it is worth more than 76% of them ($365,869 against a typical $262,062), its price per square foot is higher than almost all of them ($366 against a typical $138), it is bigger than 7% of them (1,000 ft² against a typical 1,752 ft²), its lot is bigger than almost all of them (41 ac against a typical 0.29 ac) and it is newer than 6% of them (1955 against a typical 1997). Measured against all of Fulton County, it is worth more than 44% 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 21783 Union Rd, South Fulton, GA?

The 2025 property tax bill for 21783 Union Rd, South Fulton, GA was $3,199. The county assessed it at $83,040.

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