Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$584,769$313 / 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 95How 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 $268,000 on Sep 16, 2010

447 GAMMON RD

KINGSPORT, TN 37663
2
Baths
1,866 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.
0.37 ac
Lot SizeThe size of the land the home sits on, from county records.
1961
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$585K
$555K low$615K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$268,000 · Sep 16, 2010

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,753 (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.$108,675 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$55,925
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$52,750
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$49,750
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$434,700

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.48
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
28
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
86
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
79
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
46
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
CountySullivan
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.1993
Lot (acres)The size of the land the home sits on, from county records.0.37
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Footing
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.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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 192 ft²Shed · 84 ft²Patio · 280 ft²Porch · 174 ft²

Transaction History(5)

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
Holston Elementary SchoolB+
Elementary · Grades PK–5 · 2.5 mi
H
West Ridge High SchoolB+
High · Grades 9–12 · 4.2 mi
M
Central Middle SchoolD+
Middle · Grades 6–8 · 5.5 mi

District: Sullivan County School District

Neighborhood · ZIP 37663These 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.67
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.107
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.112

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.8%
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.14,574
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.521 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$74,383
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$92,485
Average tempThe average temperature here across a full year.56°F
Annual precipHow much rain and melted snow falls here in a typical year.43 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.53%

Owner Tools

Do you own this home?
Claim this home

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

447 Gammon 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 94% of homes in Kingsport 37663
  • Costs more per square foot than 98% of homes in Kingsport 37663
  • Bigger than 74% of homes in Sullivan County
  • Has a smaller lot than 79% of homes in Kingsport 37663
  • Older than 79% of homes in Kingsport 37663

What homes are worth in Kingsport 37663

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

This home
$136K$746K

This home is worth more than 94% of homes in Kingsport 37663.

How it measures up in Kingsport 37663

The dot is this home. The mark in the middle is the typical home in Kingsport 37663.

Estimated value$584,769
CheaperTypical $310,871Pricier

Pricier than 94% of homes nearby

Price per ft²$313
CheaperTypical $186Pricier

Pricier than 98% of homes nearby

Living area1,866 ft²
SmallerTypical 1,613 ft²Bigger

Bigger than 65% of homes nearby

Lot size0.37 ac
SmallerTypical 0.51 acBigger

Bigger than 21% of homes nearby

Year built1961
OlderTypical 1976Newer

Newer than 21% of homes nearby

How 447 Gammon Rd ranks against every home in each area.
MeasureThis homeKingsport 37663Sullivan County
Estimated valuepricier than$584,76994% of homes93% of homes
Price per ft²pricier than$31398% of homes98% of homes
Living areabigger than1,866 ft²65% of homes74% of homes
Lot sizebigger than0.37 ac21% of homes37% of homes
Year builtnewer than196121% of homes35% of homes

About 447 Gammon Rd

How much is 447 Gammon Rd, Kingsport, TN worth?

The TopHap Estimate for 447 Gammon Rd, Kingsport, TN is $584,769 as of Sep 24, 2026. The likely range is $554,882 to $614,656. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 447 Gammon Rd, Kingsport, TN last sell?

447 Gammon Rd, Kingsport, TN last sold on Sep 16, 2010 for $268,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 447 Gammon Rd, Kingsport, TN?

447 Gammon Rd, Kingsport, TN has 2 bathrooms, 1,866 square feet of living space and a 0.37-acre lot.

When was 447 Gammon Rd, Kingsport, TN built?

447 Gammon Rd, Kingsport, TN was built in 1961, making it 65 years old. The building has 1 story.

What schools serve 447 Gammon Rd, Kingsport, TN?

447 Gammon Rd, Kingsport, TN is assigned to Holston Elementary School (elementary), rated B+; West Ridge High School (high), rated B+; Central Middle School (middle), rated D+. All sit in Sullivan County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 447 Gammon Rd, Kingsport, TN compare to other homes in Kingsport 37663?

Among the 6,410 homes in Kingsport 37663, it is worth more than 94% of them ($584,769 against a typical $310,871), its price per square foot is higher than 98% of them ($313 against a typical $186), it is bigger than 65% of them (1,866 ft² against a typical 1,613 ft²), its lot is bigger than 21% of them (0.37 ac against a typical 0.51 ac) and it is newer than 21% of them (1961 against a typical 1976). Measured against all of Sullivan County, it is worth more than 93% 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 447 Gammon Rd, Kingsport, TN?

The 2025 property tax bill for 447 Gammon Rd, Kingsport, TN was $1,753. The county assessed it at $108,675.

More homes on Gammon Rd

Closest homes

More homes in Kingsport 37663

Assigned schools

Explore the area

See this home in context

Open 447 Gammon Rd on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map