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305 SUNSET DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

2 bed2 bath1,491 sqftBuilt 1946

Property at a Glance

This home is estimated between $219,611 and $288,111, with a best estimate of $231,473. 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

$219,611 $288,111
Best Estimate
$231,473
WCAD Value
$312,840
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 $219,611 and $288,111 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,447 sqft Built 1970
Raw Value $326,418
Adjusted Value $288,111

Adjusted +$8,990 for 44 sqft more living space and -$47,297 for being older. Net adjustment: -$38,307.

3 bed 2 bath 1,392 sqft Built 1975
Raw Value $258,164
Adjusted Value $221,240

Adjusted +$20,227 for 99 sqft more living space and -$57,151 for being older. Net adjustment: -$36,924.

3 bed 2 bath 1,474 sqft Built 1985
Raw Value $304,858
Adjusted Value $231,473

Adjusted +$3,473 for 17 sqft more living space and -$76,858 for being older. Net adjustment: -$73,385.

3 bed 2 bath 1,670 sqft Built 1978
Raw Value $319,246
Adjusted Value $219,611

Adjusted -$36,572 for 179 sqft less living space and -$63,063 for being older. Net adjustment: -$99,635.

3 bed 2 bath 1,884 sqft Built 1970
Raw Value $379,486
Adjusted Value $251,894

Adjusted -$80,295 for 393 sqft less living space and -$47,297 for being older. Net adjustment: -$127,592.

The Neighborhood

This home is valued 4.5% 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
$312,840
Median
$299,497

This home is +4.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $5,629 across all districts. With a homestead exemption claimed, that drops to $4,321 — saving $1,308 per year. That's $360 per month a buyer should budget. The assessed value increased +9.4% vs the subdivision average of -0.9%. This above-average increase gives a protest opportunity score of 65 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$2,794
Round RockCity0.3720%$1,164
Williamson CountyCounty0.3694%$1,156
Austin Community Collegespecial0.1034%$323
Williamson County FM/RdCounty0.0443%$139
Upper Brushy Creek WCIDWater0.0170%$53
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,629
65 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $231,473 would pay approximately $1,445 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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