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Single Family ResidenceResidential
$482,408$118 / 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 Oct 21, 2026
Last sold for $275,000 on Mar 18, 2013

21 KNOLLWOOD PL

CLAYTON, NC 27527
5
Beds
4 / 1
Baths
4,095 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.
0.93 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.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$482K
$445K low$520K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$275,000 · Mar 18, 2013

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,820 (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.$576,130 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$90,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$486,130
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$373,150
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$576,130

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.8 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
CountyJohnston
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.2007
Lot (acres)The size of the land the home sits on, from county records.0.93
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.Forced Air
CoolingThe type of cooling or air conditioning in the home.Central
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 · 372 ft²Patio · 516 ft²Porch · 184 ft²

Transaction History(2)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(1)

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Powhatan Elementary SchoolA-
Elementary · Grades PK–5 · 0.7 mi
M
Riverwood Middle SchoolB
Middle · Grades 6–8 · 4.1 mi
H
Clayton High SchoolC
High · Grades 9–12 · 4.3 mi

District: Johnston County Schools

Neighborhood · ZIP 27527These 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.79
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.37

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.36%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.37,461
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.849 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$111,360
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$143,851
Average tempThe average temperature here across a full year.60°F
Annual precipHow much rain and melted snow falls here in a typical year.47 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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

21 Knollwood Pl 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 86% of homes in Johnston County
  • Among the lowest price per square foot in Clayton 27527
  • Among the largest homes in Johnston County
  • Has a bigger lot than 80% of homes in Clayton 27527
  • Older than 89% of homes in Clayton 27527

What homes are worth in Clayton 27527

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

This home
$238K$877K

This home is worth more than 73% of homes in Clayton 27527.

How it measures up in Clayton 27527

The dot is this home. The mark in the middle is the typical home in Clayton 27527.

Estimated value$482,408
CheaperTypical $409,351Pricier

Pricier than 73% of homes nearby

Price per ft²$118
CheaperTypical $187Pricier

Cheaper than almost all homes nearby

Living area4,095 ft²
SmallerTypical 2,240 ft²Bigger

Bigger than 97% of homes nearby

Lot size0.93 ac
SmallerTypical 0.33 acBigger

Bigger than 80% of homes nearby

Year built1996
OlderTypical 2013Newer

Newer than 11% of homes nearby

How 21 Knollwood Pl ranks against every home in each area.
MeasureThis homeClayton 27527Johnston County
Estimated valuepricier than$482,40873% of homes86% of homes
Price per ft²pricier than$118almost no homes6% of homes
Living areabigger than4,095 ft²97% of homesalmost all homes
Lot sizebigger than0.93 ac80% of homes66% of homes
Year builtnewer than199611% of homes34% of homes

About 21 Knollwood Pl

How much is 21 Knollwood Pl, Clayton, NC worth?

The TopHap Estimate for 21 Knollwood Pl, Clayton, NC is $482,408 as of Oct 21, 2026. The likely range is $445,178 to $519,638. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Knollwood Pl, Clayton, NC last sell?

21 Knollwood Pl, Clayton, NC last sold on Mar 18, 2013 for $275,000, according to the county's recorded deed.

How big is 21 Knollwood Pl, Clayton, NC?

21 Knollwood Pl, Clayton, NC has 5 bedrooms, 4 bathrooms, 4,095 square feet of living space and a 0.93-acre lot.

When was 21 Knollwood Pl, Clayton, NC built?

21 Knollwood Pl, Clayton, NC was built in 1996, making it 30 years old. The building has 2 stories.

What schools serve 21 Knollwood Pl, Clayton, NC?

21 Knollwood Pl, Clayton, NC is assigned to Powhatan Elementary School (elementary), rated A-; Riverwood Middle School (middle), rated B; Clayton High School (high), rated C. All sit in Johnston County Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Knollwood Pl, Clayton, NC compare to other homes in Clayton 27527?

Among the 14,406 homes in Clayton 27527, it is worth more than 73% of them ($482,408 against a typical $409,351), its price per square foot is higher than almost none of them ($118 against a typical $187), it is bigger than 97% of them (4,095 ft² against a typical 2,240 ft²), its lot is bigger than 80% of them (0.93 ac against a typical 0.33 ac) and it is newer than 11% of them (1996 against a typical 2013). Measured against all of Johnston County, it is worth more than 86% 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 21 Knollwood Pl, Clayton, NC?

The 2025 property tax bill for 21 Knollwood Pl, Clayton, NC was $5,820. The county assessed it at $576,130.

More homes on Knollwood Pl

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Assigned schools

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