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1615 SAWMILL XING, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed3 bath2,158 sqftBuilt 2023

Property at a Glance

This home is estimated between $593,775 and $694,526, with a best estimate of $647,409. That places the property above the R455524B - HOMESTEAD AT OLD SETTLERS R5 median of $584,835, in a neighborhood that appreciated 31.2% over the past year.

Estimated Value Range

$593,775 $694,526
Best Estimate
$647,409
WCAD Value
$468,492
High Confidence

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

Based on 5 comparable properties in R455524B - HOMESTEAD AT OLD SETTLERS R5, this home's estimated market value is between $593,775 and $694,526. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1704 SAWMILL XING, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,155 sqft Built 2023
Raw Value $594,557
Adjusted Value $595,417

Adjusted +$860 for 3 sqft more living space. Net adjustment: +$860.

1616 SAWMILL XING, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 3 bath 1,986 sqft Built 2022
Raw Value $598,869
Adjusted Value $652,330

Adjusted +$49,293 for 172 sqft more living space and +$4,168 for being newer. Net adjustment: +$53,461.

1508 SAWMILL XING, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 4 bath 1,998 sqft Built 2022
Raw Value $597,387
Adjusted Value $647,409

Adjusted +$45,854 for 160 sqft more living space and +$4,168 for being newer. Net adjustment: +$50,022.

1413 SAWMILL XING, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 3 bath 1,830 sqft Built 2021
Raw Value $592,189
Adjusted Value $694,526

Adjusted +$94,001 for 328 sqft more living space and +$8,336 for being newer. Net adjustment: +$102,337.

1449 SAWMILL XING, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,053 sqft Built 2021
Raw Value $555,347
Adjusted Value $593,775

Adjusted +$30,092 for 105 sqft more living space and +$8,336 for being newer. Net adjustment: +$38,428.

The Neighborhood

This home is valued 19.9% below the R455524B - HOMESTEAD AT OLD SETTLERS R5 median of $584,835. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 31.2% over the past year.

R455524B - HOMESTEAD AT OLD SETTLERS R5

below average
142 Properties
$584,835 Median Value
+31.2% YoY Change
0% Have Pool
100% Have Garage
This Home
$468,492
Median
$584,835

This home is -19.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,823 across all districts. With a homestead exemption claimed, that drops to $9,487 — saving $1,336 per year. That's $791 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
Round Rock ISDSchool0.8931%$4,184
Round Rock MUD #2MUD0.5110%$2,394
Round RockCity0.3720%$1,743
Williamson CountyCounty0.3694%$1,731
Austin Community Collegespecial0.1034%$484
Williamson County FM/RdCounty0.0443%$208
Upper Brushy Creek WCIDWater0.0170%$80
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3103%$10,823

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $647,409 would pay approximately $4,041 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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