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Single Family ResidenceResidential
$365,892$245 / 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 96How 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 $126,300 on Aug 22, 2007

1135 SOUTHWESTERN DR

RICHARDSON, TX 75081
3
Beds
2
Baths
1,495 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.
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
1977
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$366K
$351K low$380K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$126,300 · Aug 22, 2007

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,052 (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.$351,020 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$115,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$236,020
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$323,260
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$351,020

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyDALLAS
Lot (acres)The size of the land the home sits on, from county records.0.18
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
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

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.

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

E
Mark Twain Elementary SchoolD+
Elementary · Grades PK–6 · 0.2 mi
M
Apollo Junior High SchoolC
Middle · Grades 7–8 · 0.7 mi
H
Berkner High SchoolD+
High · Grades 9–12 · 1.3 mi

District: Richardson Independent School District

Neighborhood · ZIP 75081These 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.73
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.103
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.28

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.94%
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.8.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.37,696
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,098 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$91,627
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$112,191
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

1135 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.

  • Worth more than 85% of homes in Mark Twain
  • Costs more per square foot than 90% of homes in Richardson 75081
  • Smaller than 84% of homes in Richardson 75081
  • Has a smaller lot than 81% of homes in Richardson 75081
  • Newer than 94% of homes in Mark Twain

What homes are worth in Richardson 75081

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

This home
$229K$643K

This home is worth more than 31% of homes in Richardson 75081.

How it measures up in Richardson 75081

The dot is this home. The mark in the middle is the typical home in Richardson 75081.

Estimated value$365,892
CheaperTypical $401,287Pricier

Pricier than 31% of homes nearby

Price per ft²$245
CheaperTypical $202Pricier

Pricier than 90% of homes nearby

Living area1,495 ft²
SmallerTypical 1,995 ft²Bigger

Bigger than 16% of homes nearby

Lot size0.18 ac
SmallerTypical 0.21 acBigger

Bigger than 19% of homes nearby

Year built1977
OlderTypical 1975Newer

Newer than 68% of homes nearby

How 1135 Southwestern Dr ranks against every home in each area.
MeasureThis homeMark TwainRichardson 75081Dallas County
Estimated valuepricier than$365,89285% of homes31% of homes63% of homes
Price per ft²pricier than$24576% of homes90% of homes76% of homes
Living areabigger than1,495 ft²68% of homes16% of homes38% of homes
Lot sizebigger than0.18 ac35% of homes19% of homes44% of homes
Year builtnewer than197794% of homes68% of homes50% of homes

About 1135 Southwestern Dr

How much is 1135 Southwestern Dr, Richardson, TX worth?

The TopHap Estimate for 1135 Southwestern Dr, Richardson, TX is $365,892 as of Sep 24, 2026. The likely range is $351,422 to $380,362. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1135 Southwestern Dr, Richardson, TX last sell?

1135 Southwestern Dr, Richardson, TX last sold on Aug 22, 2007 for $126,300, according to the county's recorded deed.

How big is 1135 Southwestern Dr, Richardson, TX?

1135 Southwestern Dr, Richardson, TX has 3 bedrooms, 2 bathrooms, 1,495 square feet of living space and a 0.18-acre lot.

When was 1135 Southwestern Dr, Richardson, TX built?

1135 Southwestern Dr, Richardson, TX was built in 1977, making it 49 years old. The building has 1 story.

What schools serve 1135 Southwestern Dr, Richardson, TX?

1135 Southwestern Dr, Richardson, TX is assigned to Mark Twain Elementary School (elementary), rated D+; Apollo Junior High School (middle), rated C; Berkner High School (high), rated D+. All sit in Richardson Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1135 Southwestern Dr, Richardson, TX compare to other homes in Richardson 75081?

Among the 9,922 homes in Richardson 75081, it is worth more than 31% of them ($365,892 against a typical $401,287), its price per square foot is higher than 90% of them ($245 against a typical $202), it is bigger than 16% of them (1,495 ft² against a typical 1,995 ft²), its lot is bigger than 19% of them (0.18 ac against a typical 0.21 ac) and it is newer than 68% of them (1977 against a typical 1975). Measured against all of Dallas County, it is worth more than 63% 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 1135 Southwestern Dr, Richardson, TX?

The 2025 property tax bill for 1135 Southwestern Dr, Richardson, TX was $7,052. The county assessed it at $351,020.

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