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103 SUNSET DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath2,584 sqftBuilt 1955

Property at a Glance

This home is estimated between $458,039 and $529,160, with a best estimate of $472,654. That places the property above the R504464I - North Park Addition median of $299,497, in a neighborhood that declined 0.9% over the past year.

Estimated Value Range

$458,039 $529,160
Best Estimate
$472,654
WCAD Value
$340,800
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 $458,039 and $529,160 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,884 sqft Built 1970
Raw Value $379,486
Adjusted Value $492,943

Adjusted +$143,018 for 700 sqft more living space and -$29,561 for being older. Net adjustment: +$113,457.

3 bed 2 bath 2,006 sqft Built 1975
Raw Value $379,361
Adjusted Value $458,039

Adjusted +$118,092 for 578 sqft more living space and -$39,414 for being older. Net adjustment: +$78,678.

3 bed 2 bath 1,447 sqft Built 1970
Raw Value $326,418
Adjusted Value $529,160

Adjusted +$232,303 for 1,137 sqft more living space and -$29,561 for being older. Net adjustment: +$202,742.

3 bed 2 bath 1,830 sqft Built 1983
Raw Value $373,783
Adjusted Value $472,654

Adjusted +$154,051 for 754 sqft more living space and -$55,180 for being older. Net adjustment: +$98,871.

3 bed 2 bath 1,670 sqft Built 1978
Raw Value $319,246
Adjusted Value $460,660

Adjusted +$186,741 for 914 sqft more living space and -$45,327 for being older. Net adjustment: +$141,414.

The Neighborhood

This home is valued 13.8% 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
$340,800
Median
$299,497

This home is +13.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,132 across all districts. With a homestead exemption claimed, that drops to $4,819 — saving $1,313 per year. That's $402 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%$3,044
Round RockCity0.3720%$1,268
Williamson CountyCounty0.3694%$1,259
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%$6,132

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $472,654 would pay approximately $2,950 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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