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Single Family ResidentialResidential
$424,900$157 / 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 76How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $120,000 on Aug 27, 1990

640 CILL ST

SMITHVILLE, TN 37166
3
Baths
2,714 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.
2.77 ac
Lot SizeThe size of the land the home sits on, from county records.
1965
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$425K
$323K low$527K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$120,000 · Aug 27, 1990

Tax & Assessment

Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$68,250 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$12,125
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$56,125
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$68,250
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$273,000

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.47 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.1 percent flood zone

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 Residential
CountyDEKALB
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.1990
Lot (acres)The size of the land the home sits on, from county records.2.77
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Package
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.Garage, Detached
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.Porch · 64 ft²

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
De Kalb County High SchoolB-
High · Grades 9–12 · 1.1 mi
M
Dekalb Middle SchoolC+
Middle · Grades 6–8 · 1.2 mi
E
Smithville Elementary School
Elementary · Grades PK–2 · 1.6 mi

District: Dekalb County School District

Neighborhood · ZIP 37166These 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.110
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.103
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.55

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.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.21%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.15,506
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.94 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$47,458
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$61,364
Average tempThe average temperature here across a full year.57°F
Annual precipHow much rain and melted snow falls here in a typical year.56 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.57%

Owner Tools

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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 Cill 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 more than 81% of homes in Smithville 37166
  • Costs less per square foot than 79% of homes in DeKalb County
  • Bigger than 94% of homes in Smithville 37166
  • Has a bigger lot than 75% of homes in Smithville 37166
  • Older than 80% of homes in Smithville 37166

What homes are worth in Smithville 37166

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

This home
$79K$840K

This home is worth more than 81% of homes in Smithville 37166.

How it measures up in Smithville 37166

The dot is this home. The mark in the middle is the typical home in Smithville 37166.

Estimated value$424,900
CheaperTypical $272,568Pricier

Pricier than 81% of homes nearby

Price per ft²$157
CheaperTypical $194Pricier

Pricier than 23% of homes nearby

Living area2,714 ft²
SmallerTypical 1,400 ft²Bigger

Bigger than 94% of homes nearby

Lot size2.77 ac
SmallerTypical 0.87 acBigger

Bigger than 75% of homes nearby

Year built1965
OlderTypical 1987Newer

Newer than 20% of homes nearby

How 640 Cill St ranks against every home in each area.
MeasureThis homeSmithville 37166DeKalb County
Estimated valuepricier than$424,90081% of homes76% of homes
Price per ft²pricier than$15723% of homes21% of homes
Living areabigger than2,714 ft²94% of homes94% of homes
Lot sizebigger than2.77 ac75% of homes70% of homes
Year builtnewer than196520% of homes22% of homes

About 640 Cill St

How much is 640 Cill St, Smithville, TN worth?

The TopHap Estimate for 640 Cill St, Smithville, TN is $424,900 as of Aug 30, 2026. The likely range is $323,178 to $526,622. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 640 Cill St, Smithville, TN last sell?

640 Cill St, Smithville, TN last sold on Aug 27, 1990 for $120,000, according to the county's recorded deed.

How big is 640 Cill St, Smithville, TN?

640 Cill St, Smithville, TN has 3 bathrooms, 2,714 square feet of living space and a 2.77-acre lot.

When was 640 Cill St, Smithville, TN built?

640 Cill St, Smithville, TN was built in 1965, making it 61 years old. The building has 1 story.

What schools serve 640 Cill St, Smithville, TN?

640 Cill St, Smithville, TN is assigned to De Kalb County High School (high), rated B-; Dekalb Middle School (middle), rated C+; Smithville Elementary School (elementary). All sit in Dekalb County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 640 Cill St, Smithville, TN compare to other homes in Smithville 37166?

Among the 6,698 homes in Smithville 37166, it is worth more than 81% of them ($424,900 against a typical $272,568), its price per square foot is higher than 23% of them ($157 against a typical $194), it is bigger than 94% of them (2,714 ft² against a typical 1,400 ft²), its lot is bigger than 75% of them (2.77 ac against a typical 0.87 ac) and it is newer than 20% of them (1965 against a typical 1987). Measured against all of DeKalb County, it is worth more than 76% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

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