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2557 LOS ALAMOS PASS, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath1,902 sqftBuilt 2012

Property at a Glance

This home is estimated between $312,640 and $493,335, with a best estimate of $377,156. That places the property below the R491607C - PALOMA LAKE DREES /TAYLOR median of $579,346, in a neighborhood that declined 5.0% over the past year.

Estimated Value Range

$312,640 $493,335
Best Estimate
$377,156
WCAD Value
$539,233
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $312,640 and $493,335. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

4 bed 3 bath 1,860 sqft Built 2010
Raw Value $488,944
Adjusted Value $493,335

Adjusted +$9,798 for 42 sqft more living space and -$5,407 for being older. Net adjustment: +$4,391.

2733 SAN MILAN PASS, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,650 sqft Built 2015
Raw Value $543,541
Adjusted Value $377,156

Adjusted -$174,495 for 748 sqft less living space and +$8,110 for being newer. Net adjustment: -$166,385.

4 bed 3 bath 2,092 sqft Built 2016
Raw Value $503,270
Adjusted Value $469,760

Adjusted -$44,324 for 190 sqft less living space and +$10,814 for being newer. Net adjustment: -$33,510.

2820 SAINT FEDERICO WAY, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,825 sqft Built 2013
Raw Value $540,858
Adjusted Value $328,241

Adjusted -$215,320 for 923 sqft less living space and +$2,703 for being newer. Net adjustment: -$212,617.

2745 SAN MILAN PASS, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,936 sqft Built 2014
Raw Value $548,447
Adjusted Value $312,640

Adjusted -$241,214 for 1,034 sqft less living space and +$5,407 for being newer. Net adjustment: -$235,807.

The Neighborhood

This home is valued 6.9% below the R491607C - PALOMA LAKE DREES /TAYLOR median of $579,346. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 5.0% over the past year.

R491607C - PALOMA LAKE DREES /TAYLOR

typical
431 Properties
$579,346 Median Value
-5.0% YoY Change
0% Have Pool
100% Have Garage
This Home
$539,233
Median
$579,346

This home is -6.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,244 across all districts. With a homestead exemption claimed, that drops to $8,894 — saving $1,350 per year. That's $741 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%$4,816
Paloma Lakes MUD #1MUD0.3725%$2,009
Williamson CountyCounty0.3694%$1,992
Austin Community Collegespecial0.1034%$558
Williamson County ESD #9 - Round RockESD0.0999%$539
Williamson County FM/RdCounty0.0443%$239
Upper Brushy Creek WCIDWater0.0170%$92
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8997%$10,244

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $377,156 would pay approximately $2,354 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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