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5851 PARMA ST, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath1,822 sqftBuilt 2015

Property at a Glance

This home is estimated between $345,488 and $523,999, with a best estimate of $392,644. 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

$345,488 $523,999
Best Estimate
$392,644
WCAD Value
$460,338
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 $345,488 and $523,999. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

6041 ROMA ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,748 sqft Built 2014
Raw Value $456,427
Adjusted Value $474,300

Adjusted +$15,644 for 74 sqft more living space and +$2,229 for being newer. Net adjustment: +$17,873.

8104 ROSANO ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,347 sqft Built 2015
Raw Value $423,580
Adjusted Value $523,999

Adjusted +$100,419 for 475 sqft more living space. Net adjustment: +$100,419.

7836 LEONARDO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,961 sqft Built 2017
Raw Value $379,331
Adjusted Value $345,488

Adjusted -$29,386 for 139 sqft less living space and -$4,457 for being older. Net adjustment: -$33,843.

5637 SACCO ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,544 sqft Built 2017
Raw Value $338,329
Adjusted Value $392,644

Adjusted +$58,772 for 278 sqft more living space and -$4,457 for being older. Net adjustment: +$54,315.

8050 MOZART ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,610 sqft Built 2016
Raw Value $335,239
Adjusted Value $377,829

Adjusted +$44,819 for 212 sqft more living space and -$2,229 for being older. Net adjustment: +$42,590.

The Neighborhood

This home is valued 13.3% 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
$460,338
Median
$406,354

This home is +13.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,596 across all districts. With a homestead exemption claimed, that drops to $8,824 — saving $1,772 per year. That's $735 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%$5,548
Siena MUD #1MUD0.5250%$2,417
Williamson CountyCounty0.3694%$1,701
Williamson County ESD #3 - HuttoESD0.1000%$460
Williamson County FM/RdCounty0.0443%$204
EWC Higher Ed Centerspecial0.0409%$188
Upper Brushy Creek WCIDWater0.0170%$78
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$10,596

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $392,644 would pay approximately $2,451 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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