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Single Family ResidenceResidential
$278,050$240 / 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 97How 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 $138,000 on Apr 10, 2019

640 NORTHERN AVE

CLARKSTON, GA 30021
3
Beds
2
Baths
1,158 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.
0.71 ac
Lot SizeThe size of the land the home sits on, from county records.
1948
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$278K
$270K low$286K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$138,000 · Apr 10, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,752 (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.$106,480 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$21,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$84,680
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$93,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$266,200

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
CountyDeKalb
Lot (acres)The size of the land the home sits on, from county records.0.71
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Carport (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 80 ft²Porch · 192 ft²

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

H
Clarkston High SchoolD
High · Grades 9–12 · 0.6 mi
E
Dunaire Elementary SchoolD-
Elementary · Grades PK–5 · 1.5 mi
M
Freedom Middle SchoolD
Middle · Grades 6–8 · 3.0 mi

District: Dekalb County School District

Neighborhood · ZIP 30021These 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.80
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.53

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.16%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.26%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.25,600
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.7,209 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$54,889
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$69,064
Average tempThe average temperature here across a full year.61°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.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 Northern 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.

  • Costs more per square foot than 90% of homes in Clarkston 30021
  • Smaller than 90% of homes in DeKalb County
  • Has a bigger lot than 94% of homes in Clarkston 30021
  • Older than 93% of homes in DeKalb County

What homes are worth in Clarkston 30021

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

This home
$36K$437K

This home is worth more than 50% of homes in Clarkston 30021.

How it measures up in Clarkston 30021

The dot is this home. The mark in the middle is the typical home in Clarkston 30021.

Estimated value$278,050
CheaperTypical $276,050Pricier

Pricier than 50% of homes nearby

Price per ft²$240
CheaperTypical $164Pricier

Pricier than 90% of homes nearby

Living area1,158 ft²
SmallerTypical 1,440 ft²Bigger

Bigger than 23% of homes nearby

Lot size0.71 ac
SmallerTypical 0.22 acBigger

Bigger than 94% of homes nearby

Year built1948
OlderTypical 1971Newer

Newer than 8% of homes nearby

How 640 Northern Ave ranks against every home in each area.
MeasureThis homeClarkston 30021DeKalb County
Estimated valuepricier than$278,05050% of homes41% of homes
Price per ft²pricier than$24090% of homes66% of homes
Living areabigger than1,158 ft²23% of homes10% of homes
Lot sizebigger than0.71 ac94% of homes94% of homes
Year builtnewer than19488% of homes7% of homes

About 640 Northern Ave

How much is 640 Northern Ave, Clarkston, GA worth?

The TopHap Estimate for 640 Northern Ave, Clarkston, GA is $278,050 as of Sep 24, 2026. The likely range is $269,944 to $286,156. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 640 Northern Ave, Clarkston, GA last sell?

640 Northern Ave, Clarkston, GA last sold on Apr 10, 2019 for $138,000, according to the county's recorded deed.

How big is 640 Northern Ave, Clarkston, GA?

640 Northern Ave, Clarkston, GA has 3 bedrooms, 2 bathrooms, 1,158 square feet of living space and a 0.71-acre lot.

When was 640 Northern Ave, Clarkston, GA built?

640 Northern Ave, Clarkston, GA was built in 1948, making it 78 years old. It is a ranch home. The building has 1 story.

What schools serve 640 Northern Ave, Clarkston, GA?

640 Northern Ave, Clarkston, GA is assigned to Clarkston High School (high), rated D; Dunaire Elementary School (elementary), rated D-; Freedom Middle School (middle), rated D. All sit in Dekalb County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 640 Northern Ave, Clarkston, GA compare to other homes in Clarkston 30021?

Among the 2,777 homes in Clarkston 30021, it is worth more than 50% of them ($278,050 against a typical $276,050), its price per square foot is higher than 90% of them ($240 against a typical $164), it is bigger than 23% of them (1,158 ft² against a typical 1,440 ft²), its lot is bigger than 94% of them (0.71 ac against a typical 0.22 ac) and it is newer than 8% of them (1948 against a typical 1971). Measured against all of DeKalb County, it is worth more than 41% 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 Northern Ave, Clarkston, GA?

The 2025 property tax bill for 640 Northern Ave, Clarkston, GA was $2,752. The county assessed it at $106,480.

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More homes in Clarkston 30021

Assigned schools

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