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2120/2122 ANDOVER DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed4 bath1,936 sqftBuilt 1985

Property at a Glance

This home is estimated between $345,067 and $639,091, with a best estimate of $385,029. 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

$345,067 $639,091
Best Estimate
$385,029
WCAD Value
$338,011
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $345,067 and $639,091. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

2124/2126 ANDOVER DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 4 bath 1,880 sqft Built 1985
Raw Value $334,186
Adjusted Value $345,067

Adjusted +$10,881 for 56 sqft more living space. Net adjustment: +$10,881.

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 $366,775

Adjusted +$52,464 for 270 sqft more living space. Net adjustment: +$52,464.

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 $385,029

Adjusted +$52,464 for 270 sqft more living space. Net adjustment: +$52,464.

4 bed 3 bath 1,902 sqft Built 2003
Raw Value $440,006
Adjusted Value $386,823

Adjusted +$6,607 for 34 sqft more living space and -$18,003 for being older and -$41,787 for no garage. Net adjustment: -$53,183.

5 bed 4 bath 2,076 sqft Built 2007
Raw Value $730,086
Adjusted Value $639,091

Adjusted -$27,204 for 140 sqft less living space and -$22,004 for being older and -$41,787 for no garage. Net adjustment: -$90,995.

The Neighborhood

This home is valued 4.9% 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
$338,011
Median
$355,449

This home is -4.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,082 across all districts. With a homestead exemption claimed, that drops to $4,769 — saving $1,313 per year. That's $397 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%$3,019
Round RockCity0.3720%$1,257
Williamson CountyCounty0.3694%$1,249
Austin Community Collegespecial0.1034%$350
Williamson County FM/RdCounty0.0443%$150
Upper Brushy Creek WCIDWater0.0170%$57
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,082

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $385,029 would pay approximately $2,403 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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