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Single Family ResidenceResidential
$435,533$211 / 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 80How 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 $115,000 on Sep 15, 2005

3478 OLD 421 S

BOONE, NC 28607
4
Beds
3.5
Baths
2,060 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.
0.51 ac
Lot SizeThe size of the land the home sits on, from county records.
1970
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$436K
$348K low$523K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$115,000 · Sep 15, 2005

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,014 (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.$244,300 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$32,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$212,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$244,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$244,300

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.Conventional
CountyWATAUGA
Lot (acres)The size of the land the home sits on, from county records.0.51
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
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.Patio · 336 ft²

Transaction History(1)

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
Parkway SchoolA
Elementary · Grades PK–8 · 1.3 mi
H
Watauga High SchoolA-
High · Grades 9–12 · 3.9 mi

District: Watauga County Schools

Neighborhood · ZIP 28607These 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.88
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.99
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.97

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.78%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.28%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.34,045
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.353 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$49,047
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$70,489
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.56 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.59%

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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

3478 Old 421 S 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.

  • Costs less per square foot than 84% of homes in Boone 28607
  • Bigger than 65% of homes in Watauga County
  • Has a smaller lot than 65% of homes in Watauga County
  • Older than 78% of homes in Watauga County

What homes are worth in Boone 28607

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

This home
$165K$2M

This home is worth more than 39% of homes in Boone 28607.

How it measures up in Boone 28607

The dot is this home. The mark in the middle is the typical home in Boone 28607.

Estimated value$435,533
CheaperTypical $512,461Pricier

Pricier than 39% of homes nearby

Price per ft²$211
CheaperTypical $301Pricier

Pricier than 16% of homes nearby

Living area2,060 ft²
SmallerTypical 1,728 ft²Bigger

Bigger than 64% of homes nearby

Lot size0.51 ac
SmallerTypical 0.72 acBigger

Bigger than 37% of homes nearby

Year built1970
OlderTypical 1987Newer

Newer than 23% of homes nearby

How 3478 Old 421 S ranks against every home in each area.
MeasureThis homeBoone 28607Watauga County
Estimated valuepricier than$435,53339% of homes39% of homes
Price per ft²pricier than$21116% of homes17% of homes
Living areabigger than2,060 ft²64% of homes65% of homes
Lot sizebigger than0.51 ac37% of homes35% of homes
Year builtnewer than197023% of homes22% of homes

About 3478 Old 421 S

How much is 3478 Old 421 S, Boone, NC worth?

The TopHap Estimate for 3478 Old 421 S, Boone, NC is $435,533 as of Sep 24, 2026. The likely range is $347,885 to $523,181. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3478 Old 421 S, Boone, NC last sell?

3478 Old 421 S, Boone, NC last sold on Sep 15, 2005 for $115,000, according to the county's recorded deed.

How big is 3478 Old 421 S, Boone, NC?

3478 Old 421 S, Boone, NC has 4 bedrooms, 3.5 bathrooms, 2,060 square feet of living space and a 0.51-acre lot.

When was 3478 Old 421 S, Boone, NC built?

3478 Old 421 S, Boone, NC was built in 1970, making it 56 years old. It is a conventional home. The building has 1 story.

What schools serve 3478 Old 421 S, Boone, NC?

3478 Old 421 S, Boone, NC is assigned to Parkway School (elementary), rated A; Watauga High School (high), rated A-. All sit in Watauga County Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3478 Old 421 S, Boone, NC compare to other homes in Boone 28607?

Among the 12,245 homes in Boone 28607, it is worth more than 39% of them ($435,533 against a typical $512,461), its price per square foot is higher than 16% of them ($211 against a typical $301), it is bigger than 64% of them (2,060 ft² against a typical 1,728 ft²), its lot is bigger than 37% of them (0.51 ac against a typical 0.72 ac) and it is newer than 23% of them (1970 against a typical 1987). Measured against all of Watauga 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 3478 Old 421 S, Boone, NC?

The 2025 property tax bill for 3478 Old 421 S, Boone, NC was $1,014. The county assessed it at $244,300.

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