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1109 JILLIAN CT, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath2,030 sqftBuilt 2018

Property at a Glance

This home is estimated between $384,412 and $549,074, with a best estimate of $401,877. That places the property above the H122416C - MADSEN RANCH median of $379,451, in a neighborhood that declined 7.5% over the past year.

Estimated Value Range

$384,412 $549,074
Best Estimate
$401,877
WCAD Value
$382,996
High Confidence

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

Based on 5 comparable properties in H122416C - MADSEN RANCH, this home's estimated market value is between $384,412 and $549,074. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1108 JILLIAN CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,080 sqft Built 2017
Raw Value $392,158
Adjusted Value $384,412

Adjusted -$10,116 for 50 sqft less living space and +$2,370 for being newer. Net adjustment: -$7,746.

1112 JILLIAN CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,842 sqft Built 2017
Raw Value $361,470
Adjusted Value $401,877

Adjusted +$38,037 for 188 sqft more living space and +$2,370 for being newer. Net adjustment: +$40,407.

1105 JILLIAN CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,776 sqft Built 2019
Raw Value $360,337
Adjusted Value $409,358

Adjusted +$51,391 for 254 sqft more living space and -$2,370 for being older. Net adjustment: +$49,021.

1100 JILLIAN CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,842 sqft Built 2017
Raw Value $361,470
Adjusted Value $401,877

Adjusted +$38,037 for 188 sqft more living space and +$2,370 for being newer. Net adjustment: +$40,407.

1104 JILLIAN CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,466 sqft Built 2017
Raw Value $432,592
Adjusted Value $549,074

Adjusted +$114,112 for 564 sqft more living space and +$2,370 for being newer. Net adjustment: +$116,482.

The Neighborhood

This home is in line with the H122416C - MADSEN RANCH median of $379,451. Note that values in this subdivision declined 7.5% over the past year.

H122416C - MADSEN RANCH

typical
285 Properties
$379,451 Median Value
-7.5% YoY Change
0% Have Pool
100% Have Garage
This Home
$382,996
Median
$379,451

This home is +0.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $7,847 across all districts. With a homestead exemption claimed, that drops to $6,089 — saving $1,758 per year. That's $507 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%$4,616
Round RockCity0.3720%$1,425
Williamson CountyCounty0.3694%$1,415
Williamson County FM/RdCounty0.0443%$170
EWC Higher Ed Centerspecial0.0409%$157
Upper Brushy Creek WCIDWater0.0170%$65
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0488%$7,847

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $401,877 would pay approximately $2,509 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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