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3121 BLANTYRE BND, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed2 bath1,247 sqftBuilt 2018

Property at a Glance

This home is estimated between $249,718 and $294,905, with a best estimate of $290,624. That places the property below the R634417C - GLEN ELLYN median of $356,668, in a neighborhood that declined 3.8% over the past year.

Estimated Value Range

$249,718 $294,905
Best Estimate
$290,624
WCAD Value
$438,478
High Confidence

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

Based on 5 comparable properties in R634417C - GLEN ELLYN, this home's estimated market value is between $249,718 and $294,905. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3033 BLANTYRE BND, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,384 sqft Built 2018
Raw Value $321,136
Adjusted Value $290,624

Adjusted -$30,512 for 137 sqft less living space. Net adjustment: -$30,512.

3085 BLANTYRE BND, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,384 sqft Built 2018
Raw Value $321,136
Adjusted Value $290,624

Adjusted -$30,512 for 137 sqft less living space. Net adjustment: -$30,512.

3025 BLANTYRE BND, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,706 sqft Built 2018
Raw Value $351,943
Adjusted Value $249,718

Adjusted -$102,225 for 459 sqft less living space. Net adjustment: -$102,225.

3146 BLANTYRE BND, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,700 sqft Built 2018
Raw Value $394,668
Adjusted Value $293,779

Adjusted -$100,889 for 453 sqft less living space. Net adjustment: -$100,889.

3009 BLANTYRE BND, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,700 sqft Built 2018
Raw Value $395,794
Adjusted Value $294,905

Adjusted -$100,889 for 453 sqft less living space. Net adjustment: -$100,889.

The Neighborhood

This home is valued 22.9% above the R634417C - GLEN ELLYN median of $356,668. With 103 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 3.8% over the past year.

R634417C - GLEN ELLYN

above average
103 Properties
$356,668 Median Value
-3.8% YoY Change
0% Have Pool
100% Have Garage
This Home
$438,478
Median
$356,668

This home is +22.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $7,889 across all districts. With a homestead exemption claimed, that drops to $6,558 — saving $1,331 per year. That's $547 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%$3,916
Round RockCity0.3720%$1,631
Williamson CountyCounty0.3694%$1,620
Austin Community Collegespecial0.1034%$453
Williamson County FM/RdCounty0.0443%$194
Upper Brushy Creek WCIDWater0.0170%$75
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,889

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $290,624 would pay approximately $1,814 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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