Beta Williamson County, TX only — data and coverage are limited during early access.

228 ADELFA DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,955 sqftBuilt 1999

Property at a Glance

This home is estimated between $329,528 and $430,061, with a best estimate of $345,633. That places the property below the R651598E - MORNINGSIDE MEADOWS SEC 1&7, K & B median of $400,408, in a neighborhood that declined 3.0% over the past year.

Estimated Value Range

$329,528 $430,061
Best Estimate
$345,633
WCAD Value
$350,830
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $329,528 and $430,061. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

224 ADELFA DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,833 sqft Built 1999
Raw Value $407,450
Adjusted Value $430,061

Adjusted +$22,611 for 122 sqft more living space. Net adjustment: +$22,611.

105 HOMESTEAD DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,039 sqft Built 2002
Raw Value $365,701
Adjusted Value $329,528

Adjusted -$15,568 for 84 sqft less living space and -$20,605 for being older. Net adjustment: -$36,173.

120 HOMESTEAD DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,922 sqft Built 2002
Raw Value $353,811
Adjusted Value $339,322

Adjusted +$6,116 for 33 sqft more living space and -$20,605 for being older. Net adjustment: -$14,489.

4 bed 2 bath 1,855 sqft Built 1995
Raw Value $326,192
Adjusted Value $372,199

Adjusted +$18,533 for 100 sqft more living space and +$27,474 for being newer. Net adjustment: +$46,007.

3 bed 2 bath 2,167 sqft Built 2012
Raw Value $474,213
Adjusted Value $345,633

Adjusted -$39,291 for 212 sqft less living space and -$89,289 for being older. Net adjustment: -$128,580.

The Neighborhood

This home is valued 12.4% below the R651598E - MORNINGSIDE MEADOWS SEC 1&7, K & B median of $400,408. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 3.0% over the past year.

R651598E - MORNINGSIDE MEADOWS SEC 1&7, K & B

typical
270 Properties
$400,408 Median Value
-3.0% YoY Change
3% Have Pool
99% Have Garage
This Home
$350,830
Median
$400,408

This home is -12.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,358 across all districts. With a homestead exemption claimed, that drops to $4,043 — saving $1,315 per year. That's $337 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%$3,133
Williamson CountyCounty0.3694%$1,296
Austin Community Collegespecial0.1034%$363
Williamson County ESD #9 - Round RockESD0.0999%$351
Williamson County FM/RdCounty0.0443%$156
Upper Brushy Creek WCIDWater0.0170%$60
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5272%$5,358

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $345,633 would pay approximately $2,157 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.

View full property details