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Single Family ResidenceResidential
$243,504$193 / 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 97How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

20816 ROUNDUP TRL

LAGO VISTA, TX 78645
2
Baths
1,260 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.
0.28 ac
Lot SizeThe size of the land the home sits on, from county records.
1983
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

$244K
$237K low$250K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,060 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$263,033 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$51,851
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$278,219
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$239,121
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$330,070

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyTravis
Lot (acres)The size of the land the home sits on, from county records.0.28
ConstructionThe main material the home's frame and walls are built from.Wood Frame
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Mat/Raft Foundation (Slab)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Mixed
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 · 200 ft²Porch · 112 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
Lago Vista Elementary SchoolC+
Elementary · Grades EE–3 · 0.7 mi
M
Lago Vista Middle SchoolB
Middle · Grades 6–8 · 1.4 mi
H
Lago Vista High SchoolC+
High · Grades 9–12 · 1.5 mi

District: Lago Vista Independent School District

Neighborhood · ZIP 78645These 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.143
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.82
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.15

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.82%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.9%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.13,761
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.361 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$114,211
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$141,125
Average tempThe average temperature here across a full year.67°F
Annual precipHow much rain and melted snow falls here in a typical year.33 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.60%

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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

20816 Roundup Trl 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 less than 95% of homes in Travis County
  • Costs less per square foot than 80% of homes in Leander 78645
  • Smaller than 84% of homes in Leander 78645
  • Has a bigger lot than 76% of homes in Travis County
  • Older than 81% of homes in Leander 78645

What homes are worth in Leander 78645

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

This home
$154K$2M

This home is worth more than 9% of homes in Leander 78645.

How it measures up in Leander 78645

The dot is this home. The mark in the middle is the typical home in Leander 78645.

Estimated value$243,504
CheaperTypical $445,801Pricier

Pricier than 9% of homes nearby

Price per ft²$193
CheaperTypical $234Pricier

Pricier than 20% of homes nearby

Living area1,260 ft²
SmallerTypical 1,880 ft²Bigger

Bigger than 16% of homes nearby

Lot size0.28 ac
SmallerTypical 0.28 acBigger

Bigger than 51% of homes nearby

Year built1983
OlderTypical 2004Newer

Newer than 19% of homes nearby

How 20816 Roundup Trl ranks against every home in each area.
MeasureThis homeLeander 78645Travis County
Estimated valuepricier than$243,5049% of homes5% of homes
Price per ft²pricier than$19320% of homes21% of homes
Living areabigger than1,260 ft²16% of homes19% of homes
Lot sizebigger than0.28 ac51% of homes76% of homes
Year builtnewer than198319% of homes32% of homes

About 20816 Roundup Trl

How much is 20816 Roundup Trl, Lago Vista, TX worth?

The TopHap Estimate for 20816 Roundup Trl, Lago Vista, TX is $243,504 as of Aug 30, 2026. The likely range is $236,806 to $250,202. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20816 Roundup Trl, Lago Vista, TX last sell?

20816 Roundup Trl, Lago Vista, TX last sold on Oct 27, 2000, according to the county's recorded deed.

How big is 20816 Roundup Trl, Lago Vista, TX?

20816 Roundup Trl, Lago Vista, TX has 2 bathrooms, 1,260 square feet of living space and a 0.28-acre lot.

When was 20816 Roundup Trl, Lago Vista, TX built?

20816 Roundup Trl, Lago Vista, TX was built in 1983, making it 43 years old. The building has 1 story.

What schools serve 20816 Roundup Trl, Lago Vista, TX?

20816 Roundup Trl, Lago Vista, TX is assigned to Lago Vista Elementary School (elementary), rated C+; Lago Vista Middle School (middle), rated B; Lago Vista High School (high), rated C+. All sit in Lago Vista Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20816 Roundup Trl, Lago Vista, TX compare to other homes in Leander 78645?

Among the 9,555 homes in Leander 78645, it is worth more than 9% of them ($243,504 against a typical $445,801), its price per square foot is higher than 20% of them ($193 against a typical $234), it is bigger than 16% of them (1,260 ft² against a typical 1,880 ft²), its lot is bigger than 51% of them (0.28 ac against a typical 0.28 ac) and it is newer than 19% of them (1983 against a typical 2004). Measured against all of Travis County, it is worth more than 5% 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 20816 Roundup Trl, Lago Vista, TX?

The 2024 property tax bill for 20816 Roundup Trl, Lago Vista, TX was $3,060. The county assessed it at $263,033.

More homes on Roundup Trl

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