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2645 LOS ALAMOS PASS, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath1,942 sqftBuilt 2011

Property at a Glance

This home is estimated between $324,674 and $505,370, with a best estimate of $389,191. 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

$324,674 $505,370
Best Estimate
$389,191
WCAD Value
$561,436
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 $324,674 and $505,370. 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 $505,370

Adjusted +$19,129 for 82 sqft more living space and -$2,703 for being older. Net adjustment: +$16,426.

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 $389,191

Adjusted -$165,164 for 708 sqft less living space and +$10,814 for being newer. Net adjustment: -$154,350.

4 bed 3 bath 2,092 sqft Built 2016
Raw Value $503,270
Adjusted Value $481,795

Adjusted -$34,992 for 150 sqft less living space and +$13,517 for being newer. Net adjustment: -$21,475.

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 $340,276

Adjusted -$205,989 for 883 sqft less living space and +$5,407 for being newer. Net adjustment: -$200,582.

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 $324,674

Adjusted -$231,883 for 994 sqft less living space and +$8,110 for being newer. Net adjustment: -$223,773.

The Neighborhood

This home is valued 3.1% 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
$561,436
Median
$579,346

This home is -3.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,666 across all districts. With a homestead exemption claimed, that drops to $9,311 — saving $1,355 per year. That's $776 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%$5,014
Paloma Lakes MUD #1MUD0.3725%$2,091
Williamson CountyCounty0.3694%$2,074
Austin Community Collegespecial0.1034%$581
Williamson County ESD #9 - Round RockESD0.0999%$561
Williamson County FM/RdCounty0.0443%$249
Upper Brushy Creek WCIDWater0.0170%$95
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8997%$10,666

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $389,191 would pay approximately $2,429 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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