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Single Family ResidenceResidential
$339,052$194 / 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 95How 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

1643 SOUTHWESTERN DR

ALLEN, TX 75013
3
Beds
2.5
Baths
1,748 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.
3,485 ft²
Lot SizeThe size of the land the home sits on, from county records.
2008
Year BuiltThe year the home was originally built, according to county records.
2
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.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$339K
$323K low$355K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,406 (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.$344,569 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$85,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$259,069
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$354,559
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$344,569

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.Townhouse
CountyCOLLIN
Lot (acres)The size of the land the home sits on, from county records.0.08
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Mat/Raft Foundation (Slab)
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.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.Porch · 65 ft²

Transaction History(6)

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
Hendrick Middle SchoolB
Middle · Grades 6–8 · 0.8 mi
E
Beverly Elementary SchoolA+
Elementary · Grades KG–5 · 0.9 mi
H
Plano Senior High SchoolB+
High · Grades 11–12 · 4.5 mi

District: Plano Independent School District

Neighborhood · ZIP 75013These 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.34
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.29

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.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.56,610
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,879 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$143,397
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$164,284
Average tempThe average temperature here across a full year.65°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.62%

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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

1643 Southwestern 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.

  • Among the least valuable homes in Allen 75013
  • Costs less per square foot than 86% of homes in Allen 75013
  • Smaller than 95% of homes in Suncreek
  • Has a smaller lot than 95% of homes in Collin County
  • Newer than 94% of homes in Suncreek

What homes are worth in Allen 75013

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

This home
$349K$1.5M

This home is worth less than almost all homes in Allen 75013.

How it measures up in Allen 75013

The dot is this home. The mark in the middle is the typical home in Allen 75013.

Estimated value$339,052
CheaperTypical $687,495Pricier

Cheaper than almost all homes nearby

Price per ft²$194
CheaperTypical $222Pricier

Pricier than 14% of homes nearby

Living area1,748 ft²
SmallerTypical 3,166 ft²Bigger

Bigger than 5% of homes nearby

Lot size3,485 ft²
SmallerTypical 0.19 acBigger

Bigger than 11% of homes nearby

Year built2008
OlderTypical 2007Newer

Newer than 57% of homes nearby

How 1643 Southwestern Dr ranks against every home in each area.
MeasureThis homeSuncreekAllen 75013Collin County
Estimated valuepricier than$339,0524% of homesalmost no homes17% of homes
Price per ft²pricier than$19448% of homes14% of homes35% of homes
Living areabigger than1,748 ft²5% of homes5% of homes19% of homes
Lot sizebigger than3,485 ft²16% of homes11% of homes5% of homes
Year builtnewer than200894% of homes57% of homes61% of homes

About 1643 Southwestern Dr

How much is 1643 Southwestern Dr, Allen, TX worth?

The TopHap Estimate for 1643 Southwestern Dr, Allen, TX is $339,052 as of Oct 21, 2026. The likely range is $323,138 to $354,966. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1643 Southwestern Dr, Allen, TX last sell?

1643 Southwestern Dr, Allen, TX last sold on Feb 22, 2024, according to the county's recorded deed.

How big is 1643 Southwestern Dr, Allen, TX?

1643 Southwestern Dr, Allen, TX has 3 bedrooms, 2.5 bathrooms, 1,748 square feet of living space and a 0.08-acre lot.

When was 1643 Southwestern Dr, Allen, TX built?

1643 Southwestern Dr, Allen, TX was built in 2008, making it 18 years old. It is a townhouse home. The building has 2 stories.

What schools serve 1643 Southwestern Dr, Allen, TX?

1643 Southwestern Dr, Allen, TX is assigned to Hendrick Middle School (middle), rated B; Beverly Elementary School (elementary), rated A+; Plano Senior High School (high), rated B+. All sit in Plano Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1643 Southwestern Dr, Allen, TX compare to other homes in Allen 75013?

Among the 15,653 homes in Allen 75013, it is worth more than almost none of them ($339,052 against a typical $687,495), its price per square foot is higher than 14% of them ($194 against a typical $222), it is bigger than 5% of them (1,748 ft² against a typical 3,166 ft²), its lot is bigger than 11% of them (3,485 ft² against a typical 0.19 ac) and it is newer than 57% of them (2008 against a typical 2007). Measured against all of Collin County, it is worth more than 17% 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 1643 Southwestern Dr, Allen, TX?

The 2025 property tax bill for 1643 Southwestern Dr, Allen, TX was $3,406. The county assessed it at $344,569.

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