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Single Family ResidenceResidential
$335,897$293 / 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 97How 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 $306,000 on May 22, 2023

4509 CASTLEMAN LN

KNOXVILLE, TN 37921
3
Beds
2
Baths
1,148 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.
0.38 ac
Lot SizeThe size of the land the home sits on, from county records.
1998
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.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$336K
$325K low$346K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$306,000 · May 22, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$701 (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.$45,100 (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.$180,400

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
Lot (acres)The size of the land the home sits on, from county records.0.38
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.No Foundation
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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 · 100 ft²Porch · 64 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.

M
Northwest Middle SchoolF
Middle · Grades 6–8 · 1.8 mi
E
Amherst Elementary SchoolB+
Elementary · Grades PK–5 · 2.0 mi
H
Karns High SchoolB
High · Grades 9–12 · 6.0 mi

District: Knox County School District

Neighborhood · ZIP 37921These 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.123
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.109
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.154

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.92%
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.17%
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.32,182
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,057 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$56,206
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$68,178
Average tempThe average temperature here across a full year.57°F
Annual precipHow much rain and melted snow falls here in a typical year.52 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

4509 Castleman Ln 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 70% of homes in Knoxville 37921
  • Costs more per square foot than 97% of homes in Knoxville 37921
  • Smaller than 82% of homes in Knox County
  • Has a bigger lot than 76% of homes in Knoxville 37921
  • Newer than 79% of homes in Knoxville 37921

What homes are worth in Knoxville 37921

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

This home
$88K$525K

This home is worth more than 70% of homes in Knoxville 37921.

How it measures up in Knoxville 37921

The dot is this home. The mark in the middle is the typical home in Knoxville 37921.

Estimated value$335,897
CheaperTypical $293,143Pricier

Pricier than 70% of homes nearby

Price per ft²$293
CheaperTypical $202Pricier

Pricier than 97% of homes nearby

Living area1,148 ft²
SmallerTypical 1,350 ft²Bigger

Bigger than 33% of homes nearby

Lot size0.38 ac
SmallerTypical 0.25 acBigger

Bigger than 76% of homes nearby

Year built1998
OlderTypical 1975Newer

Newer than 79% of homes nearby

How 4509 Castleman Ln ranks against every home in each area.
MeasureThis homeKnoxville 37921Knox County
Estimated valuepricier than$335,89770% of homes39% of homes
Price per ft²pricier than$29397% of homes89% of homes
Living areabigger than1,148 ft²33% of homes18% of homes
Lot sizebigger than0.38 ac76% of homes52% of homes
Year builtnewer than199879% of homes68% of homes

About 4509 Castleman Ln

How much is 4509 Castleman Ln, Knoxville, TN worth?

The TopHap Estimate for 4509 Castleman Ln, Knoxville, TN is $335,897 as of Sep 24, 2026. The likely range is $325,300 to $346,494. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4509 Castleman Ln, Knoxville, TN last sell?

4509 Castleman Ln, Knoxville, TN last sold on May 22, 2023 for $306,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 4509 Castleman Ln, Knoxville, TN?

4509 Castleman Ln, Knoxville, TN has 3 bedrooms, 2 bathrooms, 1,148 square feet of living space and a 0.38-acre lot.

When was 4509 Castleman Ln, Knoxville, TN built?

4509 Castleman Ln, Knoxville, TN was built in 1998, making it 28 years old. It is a ranch home. The building has 1 story.

What schools serve 4509 Castleman Ln, Knoxville, TN?

4509 Castleman Ln, Knoxville, TN is assigned to Northwest Middle School (middle), rated F; Amherst Elementary School (elementary), rated B+; Karns High School (high), rated B. All sit in Knox County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4509 Castleman Ln, Knoxville, TN compare to other homes in Knoxville 37921?

Among the 10,298 homes in Knoxville 37921, it is worth more than 70% of them ($335,897 against a typical $293,143), its price per square foot is higher than 97% of them ($293 against a typical $202), it is bigger than 33% of them (1,148 ft² against a typical 1,350 ft²), its lot is bigger than 76% of them (0.38 ac against a typical 0.25 ac) and it is newer than 79% of them (1998 against a typical 1975). Measured against all of Knox County, it is worth more than 39% 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 4509 Castleman Ln, Knoxville, TN?

The 2025 property tax bill for 4509 Castleman Ln, Knoxville, TN was $701. The county assessed it at $45,100.

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