Beta Williamson County, TX only — data and coverage are limited during early access.

1594 MONTEROSA LOOP, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,307 sqftBuilt 2008

Property at a Glance

This home is estimated between $349,654 and $523,492, with a best estimate of $447,506. That places the property below the R41R405D - TERAVISTA SEC 13B - HAMPTON VILLAGE median of $606,779, in a neighborhood that declined 1.9% over the past year.

Estimated Value Range

$349,654 $523,492
Best Estimate
$447,506
WCAD Value
$645,788
Low Confidence

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

There are 5 comparable properties within range, but none are in R41R405D - TERAVISTA SEC 13B - HAMPTON VILLAGE. The estimated range of $349,654 and $523,492 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 2,416 sqft Built 2017
Raw Value $480,238
Adjusted Value $349,654

Adjusted -$26,646 for 109 sqft less living space and -$103,938 for being older. Net adjustment: -$130,584.

3 bed 2 bath 1,950 sqft Built 2009
Raw Value $371,783
Adjusted Value $447,506

Adjusted +$87,272 for 357 sqft more living space and -$11,549 for being older. Net adjustment: +$75,723.

3 bed 2 bath 1,767 sqft Built 2006
Raw Value $368,387
Adjusted Value $523,492

Adjusted +$132,008 for 540 sqft more living space and +$23,097 for being newer. Net adjustment: +$155,105.

3 bed 2 bath 1,740 sqft Built 2009
Raw Value $356,515
Adjusted Value $483,574

Adjusted +$138,608 for 567 sqft more living space and -$11,549 for being older. Net adjustment: +$127,059.

2 bed 2 bath 2,262 sqft Built 2017
Raw Value $482,086
Adjusted Value $389,149

Adjusted +$11,001 for 45 sqft more living space and -$103,938 for being older. Net adjustment: -$92,937.

The Neighborhood

This home is valued 6.4% above the R41R405D - TERAVISTA SEC 13B - HAMPTON VILLAGE median of $606,779. With 109 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 1.9% over the past year.

R41R405D - TERAVISTA SEC 13B - HAMPTON VILLAGE

typical
109 Properties
$606,779 Median Value
-1.9% YoY Change
3% Have Pool
100% Have Garage
This Home
$645,788
Median
$606,779

This home is +6.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,223 across all districts. With a homestead exemption claimed, that drops to $10,854 — saving $1,369 per year. That's $905 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%$5,768
Williamson CountyCounty0.3694%$2,386
Williamson County MUD #11MUD0.3656%$2,361
Austin Community Collegespecial0.1034%$668
Williamson County ESD #9 - Round RockESD0.0999%$645
Williamson County FM/RdCounty0.0443%$286
Upper Brushy Creek WCIDWater0.0170%$110
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8928%$12,223

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $447,506 would pay approximately $2,793 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.

View full property details