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

8300 PAOLA ST, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

5 bed4 bath1,734 sqftBuilt 2017

Property at a Glance

This home is estimated between $332,964 and $484,665, with a best estimate of $413,236. That places the property above the H121413C - SIENA median of $406,354, in a neighborhood that declined 5.4% over the past year.

Estimated Value Range

$332,964 $484,665
Best Estimate
$413,236
WCAD Value
$459,851
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 $332,964 and $484,665. 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 $413,236

Adjusted -$1,057 for 5 sqft less living space and +$6,686 for being newer. Net adjustment: +$5,629.

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 $332,964

Adjusted -$19,872 for 94 sqft less living space and +$4,457 for being newer. Net adjustment: -$15,415.

5812 PARMA ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 1,626 sqft Built 2015
Raw Value $457,376
Adjusted Value $484,665

Adjusted +$22,832 for 108 sqft more living space and +$4,457 for being newer. Net adjustment: +$27,289.

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 $407,546

Adjusted -$6,342 for 30 sqft less living space and +$4,457 for being newer. Net adjustment: -$1,885.

6057 ROMA ST, ROUND ROCK, TX 78665
0.00 mi 98% similar Same subdivision
5 bed 4 bath 1,700 sqft Built 2014
Raw Value $457,383
Adjusted Value $471,257

Adjusted +$7,188 for 34 sqft more living space and +$6,686 for being newer. Net adjustment: +$13,874.

The Neighborhood

This home is valued 13.2% 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
$459,851
Median
$406,354

This home is +13.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,585 across all districts. With a homestead exemption claimed, that drops to $8,813 — saving $1,772 per year. That's $734 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%$5,542
Siena MUD #1MUD0.5250%$2,414
Williamson CountyCounty0.3694%$1,699
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%$10,585

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $413,236 would pay approximately $2,579 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