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

1803 MESSICK LOOP W, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,784 sqftBuilt 1983

Property at a Glance

This home is estimated between $454,858 and $690,321, with a best estimate of $642,026. That places the property above the R310479G - Cimarron - All Sections median of $423,440, in a neighborhood that declined 3.4% over the past year.

Estimated Value Range

$454,858 $690,321
Best Estimate
$642,026
WCAD Value
$538,455
High Confidence

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

Based on 5 comparable properties in R310479G - Cimarron - All Sections, this home's estimated market value is between $454,858 and $690,321. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

2509 W MESSICK LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,627 sqft Built 1982
Raw Value $361,201
Adjusted Value $663,827

Adjusted +$301,089 for 1,157 sqft more living space and +$1,537 for being newer. Net adjustment: +$302,626.

2400 MESSICK LOOP W, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,887 sqft Built 1983
Raw Value $456,893
Adjusted Value $690,321

Adjusted +$233,428 for 897 sqft more living space. Net adjustment: +$233,428.

2607 MESSICK LOOP W, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,875 sqft Built 1982
Raw Value $403,938
Adjusted Value $642,026

Adjusted +$236,551 for 909 sqft more living space and +$1,537 for being newer. Net adjustment: +$238,088.

1700 MESSICK PL, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,817 sqft Built 1982
Raw Value $461,909
Adjusted Value $454,858

Adjusted -$8,588 for 33 sqft less living space and +$1,537 for being newer. Net adjustment: -$7,051.

1600 MESSICK LOOP E, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,121 sqft Built 1980
Raw Value $395,910
Adjusted Value $573,056

Adjusted +$172,534 for 663 sqft more living space and +$4,612 for being newer. Net adjustment: +$177,146.

The Neighborhood

This home is valued 27.2% above the R310479G - Cimarron - All Sections median of $423,440. With 503 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 3.4% over the past year.

R310479G - Cimarron - All Sections

above average
503 Properties
$423,440 Median Value
-3.4% YoY Change
4% Have Pool
97% Have Garage
This Home
$538,455
Median
$423,440

This home is +27.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,688 across all districts. With a homestead exemption claimed, that drops to $8,338 — saving $1,350 per year. That's $695 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%$4,809
Round RockCity0.3720%$2,003
Williamson CountyCounty0.3694%$1,989
Austin Community Collegespecial0.1034%$557
Williamson County FM/RdCounty0.0443%$239
Upper Brushy Creek WCIDWater0.0170%$92
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,688

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $642,026 would pay approximately $4,008 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