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3 HILLWAY DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath2,144 sqftBuilt 1990

Property at a Glance

This home is estimated between $384,281 and $545,690, with a best estimate of $444,070. That places the property below 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

$384,281 $545,690
Best Estimate
$444,070
WCAD Value
$609,251
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 $384,281 and $545,690 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 2,039 sqft Built 2002
Raw Value $365,701
Adjusted Value $384,281

Adjusted +$34,292 for 105 sqft more living space and -$15,712 for being older. Net adjustment: +$18,580.

3 bed 2 bath 1,830 sqft Built 1983
Raw Value $373,783
Adjusted Value $545,690

Adjusted +$102,548 for 314 sqft more living space and +$9,166 for being newer and +$60,193 for having a garage. Net adjustment: +$171,907.

3 bed 2 bath 2,006 sqft Built 1975
Raw Value $379,361
Adjusted Value $444,070

Adjusted +$45,069 for 138 sqft more living space and +$19,640 for being newer. Net adjustment: +$64,709.

3 bed 2 bath 1,922 sqft Built 2002
Raw Value $353,811
Adjusted Value $410,601

Adjusted +$72,502 for 222 sqft more living space and -$15,712 for being older. Net adjustment: +$56,790.

3 bed 2 bath 1,833 sqft Built 1999
Raw Value $407,450
Adjusted Value $497,235

Adjusted +$101,569 for 311 sqft more living space and -$11,784 for being older. Net adjustment: +$89,785.

The Neighborhood

This home is valued 17.8% below the R563694C - Oak Bluff Estates Ph 2 median of $741,250. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 3.7% over the past year.

R563694C - Oak Bluff Estates Ph 2

below average
341 Properties
$741,250 Median Value
+3.7% YoY Change
1% Have Pool
99% Have Garage
This Home
$609,251
Median
$741,250

This home is -17.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,962 across all districts. With a homestead exemption claimed, that drops to $9,599 — saving $1,363 per year. That's $800 per month a buyer should budget. The assessed value increased +8.6% vs the subdivision average of +3.7%. This above-average increase gives a protest opportunity score of 40 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$5,441
Round RockCity0.3720%$2,266
Williamson CountyCounty0.3694%$2,251
Austin Community Collegespecial0.1034%$630
Williamson County FM/RdCounty0.0443%$270
Upper Brushy Creek WCIDWater0.0170%$104
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,962
40 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $444,070 would pay approximately $2,772 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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