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5903 MARINO CV, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath2,821 sqftBuilt 2017

Property at a Glance

This home is estimated between $486,356 and $758,655, with a best estimate of $559,128. 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

$486,356 $758,655
Best Estimate
$559,128
WCAD Value
$452,143
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $486,356 and $758,655. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

4 bed 3 bath 2,835 sqft Built 2017
Raw Value $761,615
Adjusted Value $758,655

Adjusted -$2,960 for 14 sqft less living space. Net adjustment: -$2,960.

8412 PAOLA CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,422 sqft Built 2016
Raw Value $399,775
Adjusted Value $486,356

Adjusted +$84,352 for 399 sqft more living space and +$2,229 for being newer. Net adjustment: +$86,581.

8520 RIMINI CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,388 sqft Built 2013
Raw Value $456,528
Adjusted Value $556,982

Adjusted +$91,540 for 433 sqft more living space and +$8,914 for being newer. Net adjustment: +$100,454.

5929 MORIANO CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 4 bath 2,205 sqft Built 2017
Raw Value $567,133
Adjusted Value $697,361

Adjusted +$130,228 for 616 sqft more living space. Net adjustment: +$130,228.

5904 MORIANO CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,197 sqft Built 2018
Raw Value $429,438
Adjusted Value $559,128

Adjusted +$131,919 for 624 sqft more living space and -$2,229 for being older. Net adjustment: +$129,690.

The Neighborhood

This home is valued 11.3% 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
$452,143
Median
$406,354

This home is +11.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,408 across all districts. With a homestead exemption claimed, that drops to $8,637 — saving $1,771 per year. That's $720 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%$5,449
Siena MUD #1MUD0.5250%$2,374
Williamson CountyCounty0.3694%$1,670
Williamson County ESD #3 - HuttoESD0.1000%$452
Williamson County FM/RdCounty0.0443%$200
EWC Higher Ed Centerspecial0.0409%$185
Upper Brushy Creek WCIDWater0.0170%$77
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$10,408

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $559,128 would pay approximately $3,490 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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