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Single Family ResidenceResidential
$482,652$214 / 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 92How 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

508 IRWIN DR

POWELL, TN 37849
3
Beds
3
Baths
2,256 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.
1.5 ac
Lot SizeThe size of the land the home sits on, from county records.
1958
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$483K
$444K low$521K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$950 (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.$61,125 (2025)
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$244,500

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
CountyKNOX
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.1980
Lot (acres)The size of the land the home sits on, from county records.1.50
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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.Patio · 216 ft²Porch · 55 ft²

Transaction History(7)

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
Powell Elementary SchoolC-
Elementary · Grades KG–5 · 1.3 mi
H
Powell High SchoolC+
High · Grades 9–12 · 1.4 mi
M
Powell Middle SchoolB
Middle · Grades 6–8 · 2.4 mi

District: Knox County School District

Neighborhood · ZIP 37849These 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.116
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.149

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.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.28,630
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.727 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$77,070
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$93,980
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.56%

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

508 Irwin 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 84% of homes in Powell 37849
  • Bigger than 78% of homes in Powell 37849
  • Has a bigger lot than 87% of homes in Knox County
  • Older than 90% of homes in Powell 37849

What homes are worth in Powell 37849

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

This home
$157K$774K

This home is worth more than 84% of homes in Powell 37849.

How it measures up in Powell 37849

The dot is this home. The mark in the middle is the typical home in Powell 37849.

Estimated value$482,652
CheaperTypical $361,393Pricier

Pricier than 84% of homes nearby

Price per ft²$214
CheaperTypical $208Pricier

Pricier than 55% of homes nearby

Living area2,256 ft²
SmallerTypical 1,680 ft²Bigger

Bigger than 78% of homes nearby

Lot size1.5 ac
SmallerTypical 0.47 acBigger

Bigger than 82% of homes nearby

Year built1958
OlderTypical 1992Newer

Newer than 10% of homes nearby

How 508 Irwin Dr ranks against every home in each area.
MeasureThis homePowell 37849Knox County
Estimated valuepricier than$482,65284% of homes72% of homes
Price per ft²pricier than$21455% of homes50% of homes
Living areabigger than2,256 ft²78% of homes70% of homes
Lot sizebigger than1.5 ac82% of homes87% of homes
Year builtnewer than195810% of homes23% of homes

About 508 Irwin Dr

How much is 508 Irwin Dr, Powell, TN worth?

The TopHap Estimate for 508 Irwin Dr, Powell, TN is $482,652 as of Aug 30, 2026. The likely range is $444,209 to $521,095. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 508 Irwin Dr, Powell, TN last sell?

508 Irwin Dr, Powell, TN last sold on Dec 15, 2022, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 508 Irwin Dr, Powell, TN?

508 Irwin Dr, Powell, TN has 3 bedrooms, 3 bathrooms, 2,256 square feet of living space and a 1.50-acre lot.

When was 508 Irwin Dr, Powell, TN built?

508 Irwin Dr, Powell, TN was built in 1958, making it 68 years old. It is a ranch home. The building has 1 story.

What schools serve 508 Irwin Dr, Powell, TN?

508 Irwin Dr, Powell, TN is assigned to Powell Elementary School (elementary), rated C-; Powell High School (high), rated C+; Powell Middle School (middle), rated B. All sit in Knox County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 508 Irwin Dr, Powell, TN compare to other homes in Powell 37849?

Among the 10,742 homes in Powell 37849, it is worth more than 84% of them ($482,652 against a typical $361,393), its price per square foot is higher than 55% of them ($214 against a typical $208), it is bigger than 78% of them (2,256 ft² against a typical 1,680 ft²), its lot is bigger than 82% of them (1.5 ac against a typical 0.47 ac) and it is newer than 10% of them (1958 against a typical 1992). Measured against all of Knox County, it is worth more than 72% 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 508 Irwin Dr, Powell, TN?

The 2025 property tax bill for 508 Irwin Dr, Powell, TN was $950. The county assessed it at $61,125.

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