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

5812 PARMA ST, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed1,626 sqftBuilt 2015

Property at a Glance

This home is estimated between $305,674 and $432,864, with a best estimate of $380,257. That places the property below the H121413C - SIENA median of $406,354, in a neighborhood that declined 5.4% over the past year.

Estimated Value Range

$305,674 $432,864
Best Estimate
$380,257
WCAD Value
$457,376
High Confidence

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

Based on 5 comparable properties in H121413C - SIENA, this home's estimated market value is between $305,674 and $432,864. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

5809 PESCIA ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,739 sqft Built 2014
Raw Value $407,607
Adjusted Value $385,947

Adjusted -$23,889 for 113 sqft less living space and +$2,229 for being newer. Net adjustment: -$21,660.

5817 PARMA ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 1,828 sqft Built 2015
Raw Value $348,379
Adjusted Value $305,674

Adjusted -$42,705 for 202 sqft less living space. Net adjustment: -$42,705.

5813 PARMA ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,764 sqft Built 2015
Raw Value $409,431
Adjusted Value $380,257

Adjusted -$29,174 for 138 sqft less living space. Net adjustment: -$29,174.

6041 ROMA ST, ROUND ROCK, TX 78665
0.00 mi 94% similar Same subdivision
4 bed 3 bath 1,748 sqft Built 2014
Raw Value $456,427
Adjusted Value $432,864

Adjusted -$25,792 for 122 sqft less living space and +$2,229 for being newer. Net adjustment: -$23,563.

8050 MOZART ST, ROUND ROCK, TX 78665
0.00 mi 92% similar Same subdivision
3 bed 2 bath 1,610 sqft Built 2016
Raw Value $335,239
Adjusted Value $336,393

Adjusted +$3,383 for 16 sqft more living space and -$2,229 for being older. Net adjustment: +$1,154.

The Neighborhood

This home is valued 12.6% above the H121413C - SIENA median of $406,354. With 1,611 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 5.4% over the past year.

H121413C - SIENA

typical
1,611 Properties
$406,354 Median Value
-5.4% YoY Change
1% Have Pool
100% Have Garage
This Home
$457,376
Median
$406,354

This home is +12.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,528 across all districts. With a homestead exemption claimed, that drops to $8,756 — saving $1,772 per year. That's $730 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
Hutto ISDSchool1.2052%$5,512
Siena MUD #1MUD0.5250%$2,401
Williamson CountyCounty0.3694%$1,690
Williamson County ESD #3 - HuttoESD0.1000%$457
Williamson County FM/RdCounty0.0443%$203
EWC Higher Ed Centerspecial0.0409%$187
Upper Brushy Creek WCIDWater0.0170%$78
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$10,528

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $380,257 would pay approximately $2,374 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