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2124/2126 ANDOVER DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed4 bath1,880 sqftBuilt 1985

Property at a Glance

This home is estimated between $355,894 and $628,210, with a best estimate of $375,941. That places the property above the R450X - Round Rock East - Duplex median of $355,449, in a neighborhood that declined 8.7% over the past year.

Estimated Value Range

$355,894 $628,210
Best Estimate
$375,941
WCAD Value
$334,186
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in R450X - Round Rock East - Duplex. The estimated range of $355,894 and $628,210 should be treated as a rough guide.

Comparable Properties (5)

2121/2123 ANDOVER DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,666 sqft Built 1985
Raw Value $314,311
Adjusted Value $355,894

Adjusted +$41,583 for 214 sqft more living space. Net adjustment: +$41,583.

2128/2130 ANDOVER DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,666 sqft Built 1985
Raw Value $332,565
Adjusted Value $374,148

Adjusted +$41,583 for 214 sqft more living space. Net adjustment: +$41,583.

4 bed 3 bath 1,902 sqft Built 2003
Raw Value $440,006
Adjusted Value $375,941

Adjusted -$4,275 for 22 sqft less living space and -$18,003 for being older and -$41,787 for no garage. Net adjustment: -$64,065.

4 bed 3 bath 1,798 sqft Built 2004
Raw Value $471,825
Adjusted Value $426,969

Adjusted +$15,934 for 82 sqft more living space and -$19,003 for being older and -$41,787 for no garage. Net adjustment: -$44,856.

5 bed 4 bath 2,076 sqft Built 2007
Raw Value $730,086
Adjusted Value $628,210

Adjusted -$38,085 for 196 sqft less living space and -$22,004 for being older and -$41,787 for no garage. Net adjustment: -$101,876.

The Neighborhood

This home is valued 6.0% below the R450X - Round Rock East - Duplex median of $355,449. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 8.7% over the past year.

R450X - Round Rock East - Duplex

typical
836 Properties
$355,449 Median Value
-8.7% YoY Change
0% Have Pool
84% Have Garage
This Home
$334,186
Median
$355,449

This home is -6.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,013 across all districts. With a homestead exemption claimed, that drops to $4,701 — saving $1,312 per year. That's $392 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%$2,985
Round RockCity0.3720%$1,243
Williamson CountyCounty0.3694%$1,235
Austin Community Collegespecial0.1034%$346
Williamson County FM/RdCounty0.0443%$148
Upper Brushy Creek WCIDWater0.0170%$57
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,013

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $375,941 would pay approximately $2,347 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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