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Residential (General/Single)Residential
$524,543
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 Jul 14, 2026

2100 VIA SONOMA TRL

ROUND ROCK, TX 78665
0
Baths
1.85 ac
Lot SizeThe size of the land the home sits on, from county records.
2005
Year BuiltThe year the home was originally built, according to county records.

Valuation

$525K
$507K low$542K high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$524,543
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$419,634

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$139 (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.$7,827 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$555
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$7,272
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$7,827
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$7,827

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.13 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.Residential (General/Single)
CountyWilliamson
Lot (acres)The size of the land the home sits on, from county records.1.85
HeatingThe type of heating system in the home.None
PoolWhether the property has a pool, and what kind, such as in-ground.Pool, Concrete

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

M
Ridgeview Middle SchoolA-
Middle · Grades 6–8 · 0.4 mi
E
Blackland Prairie Elementary SchoolA-
Elementary · Grades KG–5 · 0.6 mi
H
Cedar Ridge High SchoolB
High · Grades 9–12 · 1.2 mi

District: Round Rock Independent School District

Neighborhood · ZIP 78665These 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.50
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.17

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.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.1%
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.68,564
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,056 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$112,731
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$135,299
Average tempThe average temperature here across a full year.67°F
Annual precipHow much rain and melted snow falls here in a typical year.35 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.60%

Ownership

Company ownedWhether the owner is a company or trust rather than a person.Yes

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

2100 Via Sonoma 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 more than 82% of homes in Sonoma
  • Among the largest lots in Sonoma
  • Newer than 69% of homes in Sonoma

What homes are worth in Round Rock 78665

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

This home
$282K$801K

This home is worth more than 78% of homes in Round Rock 78665.

How it measures up in Round Rock 78665

The dot is this home. The mark in the middle is the typical home in Round Rock 78665.

Estimated value$524,543
CheaperTypical $411,987Pricier

Pricier than 78% of homes nearby

Lot size1.85 ac
SmallerTypical 0.18 acBigger

Bigger than almost all homes nearby

Year built2005
OlderTypical 2011Newer

Newer than 36% of homes nearby

How 2100 Via Sonoma Trl ranks against every home in each area.
MeasureThis homeSonomaRound Rock 78665Williamson County
Estimated valuepricier than$524,54382% of homes78% of homes72% of homes
Lot sizebigger than1.85 acalmost all homesalmost all homes91% of homes
Year builtnewer than200569% of homes36% of homes46% of homes

About 2100 Via Sonoma Trl

How much is 2100 Via Sonoma Trl, Round Rock, TX worth?

The TopHap Estimate for 2100 Via Sonoma Trl, Round Rock, TX is $524,543 as of Jul 14, 2026. The likely range is $507,161 to $541,925. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 2100 Via Sonoma Trl, Round Rock, TX last sell?

2100 Via Sonoma Trl, Round Rock, TX last sold on May 8, 2001, according to the county's recorded deed.

When was 2100 Via Sonoma Trl, Round Rock, TX built?

2100 Via Sonoma Trl, Round Rock, TX was built in 2005, making it 21 years old.

What schools serve 2100 Via Sonoma Trl, Round Rock, TX?

2100 Via Sonoma Trl, Round Rock, TX is assigned to Ridgeview Middle School (middle), rated A-; Blackland Prairie Elementary School (elementary), rated A-; Cedar Ridge High School (high), rated B. All sit in Round Rock Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 2100 Via Sonoma Trl, Round Rock, TX compare to other homes in Round Rock 78665?

Among the 20,792 homes in Round Rock 78665, it is worth more than 78% of them ($524,543 against a typical $411,987), its lot is bigger than almost all of them (1.85 ac against a typical 0.18 ac) and it is newer than 36% of them (2005 against a typical 2011). Measured against all of Williamson County, it is worth more than 72% 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 2100 Via Sonoma Trl, Round Rock, TX?

The 2025 property tax bill for 2100 Via Sonoma Trl, Round Rock, TX was $139. The county assessed it at $7,827.

More homes on Via Sonoma Trl

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More homes in Round Rock 78665

Assigned schools

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