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11 HILLWAY DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed3 bath3,366 sqftBuilt 1988

Property at a Glance

This home is estimated between $738,568 and $1,079,653, with a best estimate of $810,499. That places the property above the R563694C - Oak Bluff Estates Ph 2 median of $741,250, in a neighborhood that appreciated 3.7% over the past year.

Estimated Value Range

$738,568 $1,079,653
Best Estimate
$810,499
WCAD Value
$866,491
Low Confidence

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

There are 5 comparable properties within range, but none are in R563694C - Oak Bluff Estates Ph 2. The estimated range of $738,568 and $1,079,653 should be treated as a rough guide.

Comparable Properties (5)

4 bed 2 bath 2,491 sqft Built 1998
Raw Value $465,898
Adjusted Value $738,568

Adjusted +$285,764 for 875 sqft more living space and -$13,094 for being older. Net adjustment: +$272,670.

4 bed 3 bath 1,892 sqft Built 1995
Raw Value $607,430
Adjusted Value $1,079,653

Adjusted +$481,389 for 1,474 sqft more living space and -$9,166 for being older. Net adjustment: +$472,223.

4 bed 2 bath 2,326 sqft Built 1996
Raw Value $455,545
Adjusted Value $784,721

Adjusted +$339,651 for 1,040 sqft more living space and -$10,475 for being older. Net adjustment: +$329,176.

4 bed 2 bath 1,855 sqft Built 1995
Raw Value $326,192
Adjusted Value $810,499

Adjusted +$493,473 for 1,511 sqft more living space and -$9,166 for being older. Net adjustment: +$484,307.

3 bed 4 bath 1,963 sqft Built 1978
Raw Value $315,589
Adjusted Value $847,078

Adjusted +$458,202 for 1,403 sqft more living space and +$13,094 for being newer and +$60,193 for having a garage. Net adjustment: +$531,489.

The Neighborhood

This home is valued 16.9% above the R563694C - Oak Bluff Estates Ph 2 median of $741,250. With 341 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 3.7% over the past year.

R563694C - Oak Bluff Estates Ph 2

above average
341 Properties
$741,250 Median Value
+3.7% YoY Change
1% Have Pool
99% Have Garage
This Home
$866,491
Median
$741,250

This home is +16.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $15,268 across all districts. With a homestead exemption claimed, that drops to $13,861 — saving $1,407 per year. That's $1,155 per month a buyer should budget. The assessed value increased roughly in line with the neighborhood, so a tax protest is unlikely to yield significant savings.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$7,578
Round RockCity0.3720%$3,157
Williamson CountyCounty0.3694%$3,135
Austin Community Collegespecial0.1034%$877
Williamson County FM/RdCounty0.0443%$376
Upper Brushy Creek WCIDWater0.0170%$144
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$15,268

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $810,499 would pay approximately $5,059 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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