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Single Family ResidenceResidential
$717,144$224 / 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 88How 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

423 VALLEY DR

LOUDON, TN 37774
4
Baths
3,208 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.
0.99 ac
Lot SizeThe size of the land the home sits on, from county records.
1996
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$717K
$632K low$802K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,239 (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.$216,125 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$75,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$141,125
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$129,175
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$864,500

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.64 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 Residence
CountyRoane
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.2005
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.DeckPatio · 1,004 ft²Porch · 340 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.

E
Kingston Elementary SchoolA-
Elementary · Grades PK–5 · 7.5 mi
M
Cherokee Middle SchoolC
Middle · Grades 6–8 · 8.3 mi
H
Roane County High SchoolA-
High · Grades 9–12 · 9.5 mi

District: Roane County School District

Neighborhood · ZIP 37774These 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.115
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.151

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.18%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.9%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.23,281
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.247 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$75,862
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$94,725
Average tempThe average temperature here across a full year.57°F
Annual precipHow much rain and melted snow falls here in a typical year.54 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

423 Valley 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 92% of homes in Roane County
  • Costs more per square foot than 69% of homes in Roane County
  • Bigger than 94% of homes in Roane County
  • Has a bigger lot than 74% of homes in Loudon 37774
  • Newer than 70% of homes in Roane County

What homes are worth in Loudon 37774

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

This home
$108K$1.7M

This home is worth more than 77% of homes in Loudon 37774.

How it measures up in Loudon 37774

The dot is this home. The mark in the middle is the typical home in Loudon 37774.

Estimated value$717,144
CheaperTypical $482,667Pricier

Pricier than 77% of homes nearby

Price per ft²$224
CheaperTypical $240Pricier

Pricier than 42% of homes nearby

Living area3,208 ft²
SmallerTypical 1,963 ft²Bigger

Bigger than 87% of homes nearby

Lot size0.99 ac
SmallerTypical 0.38 acBigger

Bigger than 74% of homes nearby

Year built1996
OlderTypical 1999Newer

Newer than 43% of homes nearby

How 423 Valley Dr ranks against every home in each area.
MeasureThis homeLoudon 37774Roane County
Estimated valuepricier than$717,14477% of homes92% of homes
Price per ft²pricier than$22442% of homes69% of homes
Living areabigger than3,208 ft²87% of homes94% of homes
Lot sizebigger than0.99 ac74% of homes56% of homes
Year builtnewer than199643% of homes70% of homes

About 423 Valley Dr

How much is 423 Valley Dr, Loudon, TN worth?

The TopHap Estimate for 423 Valley Dr, Loudon, TN is $717,144 as of Sep 24, 2026. The likely range is $631,837 to $802,451. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 423 Valley Dr, Loudon, TN last sell?

423 Valley Dr, Loudon, TN last sold on Dec 22, 2016, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 423 Valley Dr, Loudon, TN?

423 Valley Dr, Loudon, TN has 4 bathrooms and 3,208 square feet of living space.

When was 423 Valley Dr, Loudon, TN built?

423 Valley Dr, Loudon, TN was built in 1996, making it 30 years old. The building has 1 story.

What schools serve 423 Valley Dr, Loudon, TN?

423 Valley Dr, Loudon, TN is assigned to Kingston Elementary School (elementary), rated A-; Cherokee Middle School (middle), rated C; Roane County High School (high), rated A-. All sit in Roane County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 423 Valley Dr, Loudon, TN compare to other homes in Loudon 37774?

Among the 11,306 homes in Loudon 37774, it is worth more than 77% of them ($717,144 against a typical $482,667), its price per square foot is higher than 42% of them ($224 against a typical $240), it is bigger than 87% of them (3,208 ft² against a typical 1,963 ft²), its lot is bigger than 74% of them (0.99 ac against a typical 0.38 ac) and it is newer than 43% of them (1996 against a typical 1999). Measured against all of Roane County, it is worth more than 92% 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 423 Valley Dr, Loudon, TN?

The 2025 property tax bill for 423 Valley Dr, Loudon, TN was $3,239. The county assessed it at $216,125.

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