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905 IH 35 N, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed4,908 sqftBuilt 1976

Property at a Glance

This home is estimated between $518,645 and $2,885,857, with a best estimate of $1,612,489. That places the property above the R20PS - Small Office(<10,000 Sf)-e Round Rock median of $1,404,458, in a neighborhood that declined 0.2% over the past year.

Estimated Value Range

$518,645 $2,885,857
Best Estimate
$1,612,489
WCAD Value
$1,612,741
Low Confidence

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

There are 5 comparable properties within range, but none are in R20PS - Small Office(<10,000 Sf)-e Round Rock. The estimated range of $518,645 and $2,885,857 should be treated as a rough guide.

Comparable Properties (5)

3 bed 8,065 sqft Built 1970
Raw Value $1,822,960
Adjusted Value $868,047

Adjusted -$954,913 for 3,157 sqft less living space. Net adjustment: -$954,913.

3 bed 9,520 sqft Built 1970
Raw Value $1,913,659
Adjusted Value $518,645

Adjusted -$1,395,014 for 4,612 sqft less living space. Net adjustment: -$1,395,014.

3 bed 2,800 sqft Built 1970
Raw Value $974,872
Adjusted Value $1,612,489

Adjusted +$637,617 for 2,108 sqft more living space. Net adjustment: +$637,617.

3 bed 7,144 sqft Built 1975
Raw Value $3,562,191
Adjusted Value $2,885,857

Adjusted -$676,334 for 2,236 sqft less living space. Net adjustment: -$676,334.

3 bed 9,000 sqft Built 1970
Raw Value $3,017,895
Adjusted Value $1,780,168

Adjusted -$1,237,727 for 4,092 sqft less living space. Net adjustment: -$1,237,727.

The Neighborhood

This home is valued 14.8% above the R20PS - Small Office(<10,000 Sf)-e Round Rock median of $1,404,458. With 10 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 0.2% over the past year.

R20PS - Small Office(<10,000 Sf)-e Round Rock

typical
10 Properties
$1,404,458 Median Value
-0.2% YoY Change
0% Have Pool
0% Have Garage
This Home
$1,612,741
Median
$1,404,458

This home is +14.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $29,018 across all districts. With a homestead exemption claimed, that drops to $27,469 — saving $1,549 per year. That's $2,289 per month a buyer should budget. The assessed value increased +9.0% vs the subdivision average of -0.2%. This above-average increase gives a protest opportunity score of 71 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$14,403
Round RockCity0.3720%$5,999
Williamson CountyCounty0.3694%$5,958
Austin Community Collegespecial0.1034%$1,668
Williamson County FM/RdCounty0.0443%$715
Upper Brushy Creek WCIDWater0.0170%$274
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$29,018
71 / 100

There may be a strong case to protest this appraisal.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $1,612,489 would pay approximately $10,065 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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