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2640 LOS ALAMOS PASS, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath1,717 sqftBuilt 2013

Property at a Glance

This home is estimated between $266,779 and $538,674, with a best estimate of $331,295. 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

$266,779 $538,674
Best Estimate
$331,295
WCAD Value
$638,462
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 $266,779 and $538,674. 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 $447,475

Adjusted -$33,359 for 143 sqft less living space and -$8,110 for being older. Net adjustment: -$41,469.

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 $331,295

Adjusted -$217,653 for 933 sqft less living space and +$5,407 for being newer. Net adjustment: -$212,246.

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 $282,381

Adjusted -$258,477 for 1,108 sqft less living space. Net adjustment: -$258,477.

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 $266,779

Adjusted -$284,371 for 1,219 sqft less living space and +$2,703 for being newer. Net adjustment: -$281,668.

4 bed 3 bath 1,801 sqft Built 2016
Raw Value $550,160
Adjusted Value $538,674

Adjusted -$19,596 for 84 sqft less living space and +$8,110 for being newer. Net adjustment: -$11,486.

The Neighborhood

This home is valued 10.2% above the R491607C - PALOMA LAKE DREES /TAYLOR median of $579,346. With 431 homes in the subdivision, the property sits in the upper tier. 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
$638,462
Median
$579,346

This home is +10.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,129 across all districts. With a homestead exemption claimed, that drops to $10,761 — saving $1,368 per year. That's $897 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%$5,702
Paloma Lakes MUD #1MUD0.3725%$2,378
Williamson CountyCounty0.3694%$2,359
Austin Community Collegespecial0.1034%$660
Williamson County ESD #9 - Round RockESD0.0999%$638
Williamson County FM/RdCounty0.0443%$283
Upper Brushy Creek WCIDWater0.0170%$109
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8997%$12,129

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $331,295 would pay approximately $2,068 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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