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2578 LOS ALAMOS PASS, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath2,167 sqftBuilt 2013

Property at a Glance

This home is estimated between $371,756 and $528,876, with a best estimate of $436,273. 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

$371,756 $528,876
Best Estimate
$436,273
WCAD Value
$616,790
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 $371,756 and $528,876. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

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 $436,273

Adjusted -$112,675 for 483 sqft less living space and +$5,407 for being newer. Net adjustment: -$107,268.

4 bed 3 bath 2,365 sqft Built 2014
Raw Value $493,216
Adjusted Value $449,729

Adjusted -$46,190 for 198 sqft less living space and +$2,703 for being newer. Net adjustment: -$43,487.

4 bed 3 bath 2,092 sqft Built 2016
Raw Value $503,270
Adjusted Value $528,876

Adjusted +$17,496 for 75 sqft more living space and +$8,110 for being newer. Net adjustment: +$25,606.

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 $387,358

Adjusted -$153,500 for 658 sqft less living space. Net adjustment: -$153,500.

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 $371,756

Adjusted -$179,394 for 769 sqft less living space and +$2,703 for being newer. Net adjustment: -$176,691.

The Neighborhood

This home is valued 6.5% 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
$616,790
Median
$579,346

This home is +6.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,717 across all districts. With a homestead exemption claimed, that drops to $10,353 — saving $1,364 per year. That's $863 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%$5,509
Paloma Lakes MUD #1MUD0.3725%$2,298
Williamson CountyCounty0.3694%$2,279
Austin Community Collegespecial0.1034%$638
Williamson County ESD #9 - Round RockESD0.0999%$616
Williamson County FM/RdCounty0.0443%$273
Upper Brushy Creek WCIDWater0.0170%$105
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8997%$11,717

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $436,273 would pay approximately $2,723 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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