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1815 SAWMILL XING, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath1,589 sqftBuilt 2022

Property at a Glance

This home is estimated between $287,806 and $523,913, with a best estimate of $513,158. That places the property above the R455522C - HOMESTEAD AT OLD SETTLERS PAR median of $479,854, in a neighborhood that appreciated 10.5% over the past year.

Estimated Value Range

$287,806 $523,913
Best Estimate
$513,158
WCAD Value
$504,150
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in R455522C - HOMESTEAD AT OLD SETTLERS PAR. The estimated range of $287,806 and $523,913 should be treated as a rough guide.

Comparable Properties (5)

1816 SAWMILL XING, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,617 sqft Built 2023
Raw Value $530,250
Adjusted Value $513,158

Adjusted -$7,520 for 28 sqft less living space and -$9,572 for being older. Net adjustment: -$17,092.

5 bed 3 bath 1,590 sqft Built 2022
Raw Value $502,519
Adjusted Value $502,250

Adjusted -$269 for 1 sqft less living space. Net adjustment: -$269.

1824 SAWMILL XING, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 3 bath 2,259 sqft Built 2022
Raw Value $467,744
Adjusted Value $287,806

Adjusted -$179,938 for 670 sqft less living space. Net adjustment: -$179,938.

5 bed 3 bath 1,649 sqft Built 2022
Raw Value $538,666
Adjusted Value $522,552

Adjusted -$16,114 for 60 sqft less living space. Net adjustment: -$16,114.

4 bed 3 bath 1,641 sqft Built 2025
Raw Value $566,595
Adjusted Value $523,913

Adjusted -$13,965 for 52 sqft less living space and -$28,717 for being older. Net adjustment: -$42,682.

The Neighborhood

This home is valued 5.1% above the R455522C - HOMESTEAD AT OLD SETTLERS PAR median of $479,854. With 339 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 10.5% over the past year.

R455522C - HOMESTEAD AT OLD SETTLERS PAR

typical
339 Properties
$479,854 Median Value
+10.5% YoY Change
0% Have Pool
100% Have Garage
This Home
$504,150
Median
$479,854

This home is +5.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,647 across all districts. With a homestead exemption claimed, that drops to $10,304 — saving $1,343 per year. That's $859 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%$4,503
Round Rock MUD #2MUD0.5110%$2,576
Round RockCity0.3720%$1,875
Williamson CountyCounty0.3694%$1,863
Austin Community Collegespecial0.1034%$521
Williamson County FM/RdCounty0.0443%$223
Upper Brushy Creek WCIDWater0.0170%$86
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3103%$11,647

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $513,158 would pay approximately $3,203 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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