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TownhouseResidential
$451,104$204 / 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 91How 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 $272,093 on Jun 4, 2009

321 HORIZON DR

MONROEVILLE, PA 15146
3
Beds
2.5
Baths
2,206 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
2009
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$451K
$408K low$494K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$272,093 · Jun 4, 2009

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,529 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$237,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$40,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$197,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$237,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$255,800

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.37
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
6
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
73
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
81
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
26
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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.Townhouse
StyleThe architectural style of the home, such as ranch or colonial.Townhouse
CountyALLEGHENY
Lot (acres)The size of the land the home sits on, from county records.0.14
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.No

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
Ramsey Elementary SchoolB
Elementary · Grades KG–4 · 1.2 mi
H
Gateway Sr High SchoolB-
High · Grades 9–12 · 2.4 mi
M
Gateway Middle SchoolC
Middle · Grades 5–8 · 3.2 mi

District: Gateway School District

Neighborhood · ZIP 15146These 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.85
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.90
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.25

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.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.8%
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.28,375
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,450 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$79,630
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$97,698
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.40 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.45%

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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

321 Horizon 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 95% of homes in Monroeville 15146
  • Costs more per square foot than 88% of homes in Monroeville 15146
  • Bigger than 88% of homes in Monroeville 15146
  • Has a smaller lot than 92% of homes in Monroeville 15146
  • Among the newest homes in Monroeville 15146

What homes are worth in Monroeville 15146

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

This home
$96K$542K

This home is worth more than 95% of homes in Monroeville 15146.

How it measures up in Monroeville 15146

The dot is this home. The mark in the middle is the typical home in Monroeville 15146.

Estimated value$451,104
CheaperTypical $236,441Pricier

Pricier than 95% of homes nearby

Price per ft²$204
CheaperTypical $167Pricier

Pricier than 88% of homes nearby

Living area2,206 ft²
SmallerTypical 1,449 ft²Bigger

Bigger than 88% of homes nearby

Lot size0.14 ac
SmallerTypical 0.24 acBigger

Bigger than 8% of homes nearby

Year built2009
OlderTypical 1960Newer

Newer than almost all homes nearby

How 321 Horizon Dr ranks against every home in each area.
MeasureThis homeMonroeville 15146Allegheny County
Estimated valuepricier than$451,10495% of homes84% of homes
Price per ft²pricier than$20488% of homes70% of homes
Living areabigger than2,206 ft²88% of homes81% of homes
Lot sizebigger than0.14 ac8% of homes40% of homes
Year builtnewer than2009almost all homes96% of homes

About 321 Horizon Dr

How much is 321 Horizon Dr, Monroeville, PA worth?

The TopHap Estimate for 321 Horizon Dr, Monroeville, PA is $451,104 as of Sep 24, 2026. The likely range is $408,446 to $493,762. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 321 Horizon Dr, Monroeville, PA last sell?

321 Horizon Dr, Monroeville, PA last sold on Jun 4, 2009 for $272,093, according to the county's recorded deed.

How big is 321 Horizon Dr, Monroeville, PA?

321 Horizon Dr, Monroeville, PA has 3 bedrooms, 2.5 bathrooms, 2,206 square feet of living space and a 0.14-acre lot.

When was 321 Horizon Dr, Monroeville, PA built?

321 Horizon Dr, Monroeville, PA was built in 2009, making it 17 years old. It is a townhouse home. The building has 1 story.

What schools serve 321 Horizon Dr, Monroeville, PA?

321 Horizon Dr, Monroeville, PA is assigned to Ramsey Elementary School (elementary), rated B; Gateway Sr High School (high), rated B-; Gateway Middle School (middle), rated C. All sit in Gateway School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 321 Horizon Dr, Monroeville, PA compare to other homes in Monroeville 15146?

Among the 9,888 homes in Monroeville 15146, it is worth more than 95% of them ($451,104 against a typical $236,441), its price per square foot is higher than 88% of them ($204 against a typical $167), it is bigger than 88% of them (2,206 ft² against a typical 1,449 ft²), its lot is bigger than 8% of them (0.14 ac against a typical 0.24 ac) and it is newer than almost all of them (2009 against a typical 1960). Measured against all of Allegheny County, it is worth more than 84% 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 321 Horizon Dr, Monroeville, PA?

The 2026 property tax bill for 321 Horizon Dr, Monroeville, PA was $1,529. The county assessed it at $237,800.

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