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Single Family ResidenceResidential
$887,000$279 / 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 93How 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 $781,538 on Sep 1, 2023

3221 KNOTTS DR

THOMPSONS STATION, TN 37179
4 / 1
Baths
3,180 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.
2023
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$887K
$826K low$948K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$781,538 · Sep 1, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,938 (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.$209,350 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$37,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$171,850
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$209,350
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$837,400

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.19
46
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
20
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
29
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.11 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.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
CountyWilliamson
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Yes
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, Attached

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.

M
Thompson's Station Middle SchoolA
Middle · Grades 6–8 · 1.1 mi
E
Thompson's Station Elementary SchoolA
Elementary · Grades KG–5 · 1.1 mi
H
Independence High SchoolA+
High · Grades 9–12 · 1.3 mi

District: Williamson County School District

Neighborhood · ZIP 37179These 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.48
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.89
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.58

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.39%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.4%
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.21,071
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.407 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$125,630
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$143,462
Average tempThe average temperature here across a full year.59°F
Annual precipHow much rain and melted snow falls here in a typical year.55 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.56%

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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

3221 Knotts Dr 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 72% of homes in Thompsons Station 37179
  • Costs less per square foot than 78% of homes in Williamson County
  • Bigger than 78% of homes in Thompsons Station 37179
  • Among the newest homes in Williamson County

What homes are worth in Thompsons Station 37179

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

This home
$297K$2.4M

This home is worth more than 72% of homes in Thompsons Station 37179.

How it measures up in Thompsons Station 37179

The dot is this home. The mark in the middle is the typical home in Thompsons Station 37179.

Estimated value$887,000
CheaperTypical $678,151Pricier

Pricier than 72% of homes nearby

Price per ft²$279
CheaperTypical $284Pricier

Pricier than 46% of homes nearby

Living area3,180 ft²
SmallerTypical 2,358 ft²Bigger

Bigger than 78% of homes nearby

Year built2023
OlderTypical 2005Newer

Newer than 96% of homes nearby

How 3221 Knotts Dr ranks against every home in each area.
MeasureThis homeThompsons Station 37179Williamson County
Estimated valuepricier than$887,00072% of homes50% of homes
Price per ft²pricier than$27946% of homes22% of homes
Living areabigger than3,180 ft²78% of homes64% of homes
Year builtnewer than202396% of homesalmost all homes

About 3221 Knotts Dr

How much is 3221 Knotts Dr, Thompsons Station, TN worth?

The TopHap Estimate for 3221 Knotts Dr, Thompsons Station, TN is $887,000 as of Aug 30, 2026. The likely range is $825,579 to $948,421. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3221 Knotts Dr, Thompsons Station, TN last sell?

3221 Knotts Dr, Thompsons Station, TN last sold on Sep 1, 2023 for $781,538, according to the county's recorded deed.

How big is 3221 Knotts Dr, Thompsons Station, TN?

3221 Knotts Dr, Thompsons Station, TN has 4 bathrooms and 3,180 square feet of living space.

When was 3221 Knotts Dr, Thompsons Station, TN built?

3221 Knotts Dr, Thompsons Station, TN was built in 2023, making it 3 years old. The building has 2 stories.

What schools serve 3221 Knotts Dr, Thompsons Station, TN?

3221 Knotts Dr, Thompsons Station, TN is assigned to Thompson's Station Middle School (middle), rated A; Thompson's Station Elementary School (elementary), rated A; Independence High School (high), rated A+. All sit in Williamson County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3221 Knotts Dr, Thompsons Station, TN compare to other homes in Thompsons Station 37179?

Among the 6,812 homes in Thompsons Station 37179, it is worth more than 72% of them ($887,000 against a typical $678,151), its price per square foot is higher than 46% of them ($279 against a typical $284), it is bigger than 78% of them (3,180 ft² against a typical 2,358 ft²) and it is newer than 96% of them (2023 against a typical 2005). Measured against all of Williamson County, it is worth more than 50% 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 3221 Knotts Dr, Thompsons Station, TN?

The 2025 property tax bill for 3221 Knotts Dr, Thompsons Station, TN was $2,938. The county assessed it at $209,350.

More homes on Knotts Dr

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Assigned schools

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