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Single Family ResidenceResidential
$1,913,753$849 / 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 72How 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

603 SUMMIT ST

ROUND ROCK, TX 78664
3
Baths
2,254 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.
0.16 ac
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.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.9M
$1.4M low$2.5M 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.$1,532,313
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$1,225,850
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.20%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$381,440
AMERISAVE MORTGAGE CORP · recorded Feb 22, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,298 (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.$1,207,080 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$590,491
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$616,589
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,137,931
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,207,080

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.110 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.1 percent flood zone

Scores 0–100; higher = greater projected risk.

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.0.16
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
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 · 398 ft²

Transaction History(3)

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
Becker Elementary SchoolB
Elementary · Grades PK–5 · 0.6 mi
M
Lively Middle SchoolC-
Middle · Grades 6–8 · 1.0 mi
H
Travis Early College SchoolF
High · Grades 9–12 · 1.8 mi

District: Austin Independent School District

Neighborhood · ZIP 78664These 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.87
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.13

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.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.6%
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.72,016
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,336 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$88,209
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$105,122
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

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

603 Summit St 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 most valuable homes in Round Rock 78664
  • Among the highest price per square foot in Round Rock 78664
  • Bigger than 80% of homes in Bouldin Creek
  • Has a bigger lot than 75% of homes in Bouldin Creek
  • Newer than 83% of homes in Round Rock 78664

What homes are worth in Round Rock 78664

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

This home
$226K$873K

This home is worth more than almost all homes in Round Rock 78664.

How it measures up in Round Rock 78664

The dot is this home. The mark in the middle is the typical home in Round Rock 78664.

Estimated value$1,913,753
CheaperTypical $336,712Pricier

Pricier than almost all homes nearby

Price per ft²$849
CheaperTypical $199Pricier

Pricier than almost all homes nearby

Living area2,254 ft²
SmallerTypical 1,764 ft²Bigger

Bigger than 73% of homes nearby

Lot size0.16 ac
SmallerTypical 0.18 acBigger

Bigger than 34% of homes nearby

Year built2008
OlderTypical 1998Newer

Newer than 83% of homes nearby

How 603 Summit St ranks against every home in each area.
MeasureThis homeBouldin CreekRound Rock 78664Travis County
Estimated valuepricier than$1,913,75393% of homesalmost all homes96% of homes
Price per ft²pricier than$84986% of homesalmost all homes98% of homes
Living areabigger than2,254 ft²80% of homes73% of homes67% of homes
Lot sizebigger than0.16 ac75% of homes34% of homes37% of homes
Year builtnewer than200864% of homes83% of homes70% of homes

About 603 Summit St

How much is 603 Summit St, Round Rock, TX worth?

The TopHap Estimate for 603 Summit St, Round Rock, TX is $1,913,753 as of Jul 14, 2026. The likely range is $1,375,955 to $2,451,551. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 603 Summit St, Round Rock, TX last sell?

603 Summit St, Round Rock, TX last sold on Oct 8, 2010, according to the county's recorded deed.

How big is 603 Summit St, Round Rock, TX?

603 Summit St, Round Rock, TX has 3 bathrooms, 2,254 square feet of living space and a 0.16-acre lot.

When was 603 Summit St, Round Rock, TX built?

603 Summit St, Round Rock, TX was built in 2008, making it 18 years old. The building has 2 stories.

What schools serve 603 Summit St, Round Rock, TX?

603 Summit St, Round Rock, TX is assigned to Becker Elementary School (elementary), rated B; Lively Middle School (middle), rated C-; Travis Early College School (high), rated F. All sit in Austin Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 603 Summit St, Round Rock, TX compare to other homes in Round Rock 78664?

Among the 16,965 homes in Round Rock 78664, it is worth more than almost all of them ($1,913,753 against a typical $336,712), its price per square foot is higher than almost all of them ($849 against a typical $199), it is bigger than 73% of them (2,254 ft² against a typical 1,764 ft²), its lot is bigger than 34% of them (0.16 ac against a typical 0.18 ac) and it is newer than 83% of them (2008 against a typical 1998). Measured against all of Travis County, it is worth more than 96% 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 603 Summit St, Round Rock, TX?

The 2024 property tax bill for 603 Summit St, Round Rock, TX was $10,298. The county assessed it at $1,207,080.

Closest homes

More homes in Round Rock 78664

Assigned schools

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