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Single Family ResidenceResidential
$581,616$421 / 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 93How 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

2521 N INTERSTATE 35

ROUND ROCK, TX 78664
2
Beds
1
Baths
1,380 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.
0.12 ac
Lot SizeThe size of the land the home sits on, from county records.
2003
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$582K
$542K low$621K 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.$0
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$0
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.95%
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.$500,000
CERTAINTY HOME LOANS LLC · recorded Oct 15, 2020
2nd 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.$138,600
BANK OF AMERICA NA

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,616 (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.$434,572 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$309,003
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$125,569
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$644,428
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$434,572

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.54
71
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
26
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
99
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
43
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
33
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.43 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.Single Family Residence
CountyTravis
Lot (acres)The size of the land the home sits on, from county records.0.12
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.Builtup (layered Asphalt)
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
PoolWhether the property has a pool, and what kind, such as in-ground.No

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
Martin Middle SchoolF
Middle · Grades 6–8 · 0.9 mi
E
Govalle Elementary SchoolD
Elementary · Grades PK–5 · 1.1 mi
H
Eastside Early College High SchoolF
High · Grades 9–12 · 2.0 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

2521 N Interstate 35 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 90% of homes in Round Rock 78664
  • Costs more per square foot than 97% of homes in Round Rock 78664
  • Smaller than 77% of homes in Round Rock 78664
  • Has a smaller lot than 90% of homes in Round Rock 78664
  • Newer than 74% 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
$223K$901K

This home is worth more than 90% of 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$581,616
CheaperTypical $336,841Pricier

Pricier than 90% of homes nearby

Price per ft²$421
CheaperTypical $199Pricier

Pricier than 97% of homes nearby

Living area1,380 ft²
SmallerTypical 1,764 ft²Bigger

Bigger than 23% of homes nearby

Lot size0.12 ac
SmallerTypical 0.18 acBigger

Bigger than 10% of homes nearby

Year built2003
OlderTypical 1998Newer

Newer than 74% of homes nearby

How 2521 N Interstate 35 ranks against every home in each area.
MeasureThis homeHollyRound Rock 78664Travis County
Estimated valuepricier than$581,61644% of homes90% of homes62% of homes
Price per ft²pricier than$42120% of homes97% of homes81% of homes
Living areabigger than1,380 ft²68% of homes23% of homes26% of homes
Lot sizebigger than0.12 ac58% of homes10% of homes16% of homes
Year builtnewer than200352% of homes74% of homes60% of homes

About 2521 N Interstate 35

How much is 2521 N Interstate 35, Round Rock, TX worth?

The TopHap Estimate for 2521 N Interstate 35, Round Rock, TX is $581,616 as of Jul 14, 2026. The likely range is $542,161 to $621,071. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 2521 N Interstate 35, Round Rock, TX last sell?

2521 N Interstate 35, Round Rock, TX last sold on Oct 15, 2020, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 2521 N Interstate 35, Round Rock, TX?

2521 N Interstate 35, Round Rock, TX has 2 bedrooms, 1 bathrooms, 1,380 square feet of living space and a 0.12-acre lot.

When was 2521 N Interstate 35, Round Rock, TX built?

2521 N Interstate 35, Round Rock, TX was built in 2003, making it 23 years old. The building has 1 story.

What schools serve 2521 N Interstate 35, Round Rock, TX?

2521 N Interstate 35, Round Rock, TX is assigned to Martin Middle School (middle), rated F; Govalle Elementary School (elementary), rated D; Eastside Early College High 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 2521 N Interstate 35, 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 90% of them ($581,616 against a typical $336,841), its price per square foot is higher than 97% of them ($421 against a typical $199), it is bigger than 23% of them (1,380 ft² against a typical 1,764 ft²), its lot is bigger than 10% of them (0.12 ac against a typical 0.18 ac) and it is newer than 74% of them (2003 against a typical 1998). Measured against all of Travis County, it is worth more than 62% 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 2521 N Interstate 35, Round Rock, TX?

The 2024 property tax bill for 2521 N Interstate 35, Round Rock, TX was $10,616. The county assessed it at $434,572.

Closest homes

More homes in Round Rock 78664

Assigned schools

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