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3431 GUADALAJARA ST, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath1,703 sqftBuilt 2009

Property at a Glance

This home is estimated between $360,042 and $470,229, with a best estimate of $391,947. That places the property above the R493607C - PALOMA LAKE SEC 18 median of $387,915, in a neighborhood that declined 9.2% over the past year.

Estimated Value Range

$360,042 $470,229
Best Estimate
$391,947
WCAD Value
$441,914
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R493607C - PALOMA LAKE SEC 18. The estimated range of $360,042 and $470,229 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,668 sqft Built 2015
Raw Value $349,872
Adjusted Value $360,042

Adjusted +$7,005 for 35 sqft more living space and +$3,165 for being newer. Net adjustment: +$10,170.

3 bed 2 bath 1,666 sqft Built 2015
Raw Value $355,884
Adjusted Value $366,454

Adjusted +$7,405 for 37 sqft more living space and +$3,165 for being newer. Net adjustment: +$10,570.

3 bed 2 bath 1,758 sqft Built 2016
Raw Value $399,263
Adjusted Value $391,947

Adjusted -$11,008 for 55 sqft less living space and +$3,692 for being newer. Net adjustment: -$7,316.

4 bed 3 bath 1,748 sqft Built 2014
Raw Value $456,427
Adjusted Value $450,057

Adjusted -$9,007 for 45 sqft less living space and +$2,637 for being newer. Net adjustment: -$6,370.

4 bed 2 bath 1,373 sqft Built 2013
Raw Value $402,071
Adjusted Value $470,229

Adjusted +$66,048 for 330 sqft more living space and +$2,110 for being newer. Net adjustment: +$68,158.

The Neighborhood

This home is valued 13.9% above the R493607C - PALOMA LAKE SEC 18 median of $387,915. With 295 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 9.2% over the past year.

R493607C - PALOMA LAKE SEC 18

typical
295 Properties
$387,915 Median Value
-9.2% YoY Change
0% Have Pool
100% Have Garage
This Home
$441,914
Median
$387,915

This home is +13.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,612 across all districts. With a homestead exemption claimed, that drops to $7,280 — saving $1,332 per year. That's $607 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%$3,947
Paloma Lakes MUD #2MUD0.4215%$1,863
Williamson CountyCounty0.3694%$1,633
Austin Community Collegespecial0.1034%$457
Williamson County ESD #9 - Round RockESD0.0999%$442
Williamson County FM/RdCounty0.0443%$196
Upper Brushy Creek WCIDWater0.0170%$75
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9487%$8,612

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $391,947 would pay approximately $2,447 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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