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1400 IH 35 N, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed9,180 sqftBuilt 1977

Property at a Glance

This home is estimated between $1,830,856 and $4,053,591, with a best estimate of $2,900,230.

Estimated Value Range

$1,830,856 $4,053,591
Best Estimate
$2,900,230
WCAD Value
$2,655,025
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R30QM - Motel-West Round Rock. The estimated range of $1,830,856 and $4,053,591 should be treated as a rough guide.

Comparable Properties (5)

3 bed 9,000 sqft Built 1970
Raw Value $3,017,895
Adjusted Value $3,060,649

Adjusted +$43,462 for 180 sqft more living space and -$708 for being older. Net adjustment: +$42,754.

3 bed 7,144 sqft Built 1975
Raw Value $3,562,191
Adjusted Value $4,053,591

Adjusted +$491,602 for 2,036 sqft more living space and -$202 for being older. Net adjustment: +$491,400.

3 bed 9,520 sqft Built 1970
Raw Value $1,913,659
Adjusted Value $1,830,856

Adjusted -$82,095 for 340 sqft less living space and -$708 for being older. Net adjustment: -$82,803.

3 bed 8,065 sqft Built 1970
Raw Value $1,822,960
Adjusted Value $2,091,474

Adjusted +$269,222 for 1,115 sqft more living space and -$708 for being older. Net adjustment: +$268,514.

3 bed 6,505 sqft Built 2000
Raw Value $2,252,013
Adjusted Value $2,900,230

Adjusted +$645,891 for 2,675 sqft more living space and +$2,326 for being newer. Net adjustment: +$648,217.

The Neighborhood

Subdivision comparison data is not available for this property.

Tax Analysis

The estimated annual property tax is $47,771 across all districts. With a homestead exemption claimed, that drops to $46,030 — saving $1,741 per year. That's $3,836 per month a buyer should budget. The assessed value increased -13.0%. This increase gives a protest opportunity score of 50 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$23,712
Round RockCity0.3720%$9,877
Williamson CountyCounty0.3694%$9,809
Austin Community Collegespecial0.1034%$2,745
Williamson County FM/RdCounty0.0443%$1,177
Upper Brushy Creek WCIDWater0.0170%$451
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$47,771
50 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $2,900,230 would pay approximately $18,103 per month (principal and interest only, excluding taxes and insurance).

Data sourced from Williamson County Appraisal District (WCAD), Texas Education Agency (TEA), and Federal Reserve Economic Data (FRED). Assessment values reflect the appraisal district's estimate, not market sale prices. Report generated 4/18/2026.

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