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303 SUNSET DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed4 bath1,413 sqftBuilt 1973

Property at a Glance

This home is estimated between $193,364 and $325,383, with a best estimate of $263,999. That places the property below the R504464I - North Park Addition median of $299,497, in a neighborhood that declined 0.9% over the past year.

Estimated Value Range

$193,364 $325,383
Best Estimate
$263,999
WCAD Value
$340,543
Low Confidence

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

There are 5 comparable properties within range, but none are in R504464I - North Park Addition. The estimated range of $193,364 and $325,383 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,392 sqft Built 1975
Raw Value $258,164
Adjusted Value $258,514

Adjusted +$4,291 for 21 sqft more living space and -$3,941 for being older. Net adjustment: +$350.

3 bed 2 bath 1,447 sqft Built 1970
Raw Value $326,418
Adjusted Value $325,383

Adjusted -$6,947 for 34 sqft less living space and +$5,912 for being newer. Net adjustment: -$1,035.

3 bed 4 bath 1,963 sqft Built 1978
Raw Value $315,589
Adjusted Value $193,364

Adjusted -$112,371 for 550 sqft less living space and -$9,854 for being older. Net adjustment: -$122,225.

3 bed 2 bath 1,373 sqft Built 1984
Raw Value $294,307
Adjusted Value $280,801

Adjusted +$8,172 for 40 sqft more living space and -$21,678 for being older. Net adjustment: -$13,506.

3 bed 2 bath 1,284 sqft Built 1979
Raw Value $249,467
Adjusted Value $263,999

Adjusted +$26,356 for 129 sqft more living space and -$11,824 for being older. Net adjustment: +$14,532.

The Neighborhood

This home is valued 13.7% above the R504464I - North Park Addition median of $299,497. With 23 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 0.9% over the past year.

R504464I - North Park Addition

typical
23 Properties
$299,497 Median Value
-0.9% YoY Change
4% Have Pool
35% Have Garage
This Home
$340,543
Median
$299,497

This home is +13.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,127 across all districts. With a homestead exemption claimed, that drops to $4,814 — saving $1,313 per year. That's $401 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%$3,041
Round RockCity0.3720%$1,267
Williamson CountyCounty0.3694%$1,258
Austin Community Collegespecial0.1034%$352
Williamson County FM/RdCounty0.0443%$151
Upper Brushy Creek WCIDWater0.0170%$58
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,127

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $263,999 would pay approximately $1,648 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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