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2133/2135 ANDOVER DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed3 bath2,102 sqftBuilt 1985

Property at a Glance

This home is estimated between $319,153 and $596,447, with a best estimate of $366,230. 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

$319,153 $596,447
Best Estimate
$366,230
WCAD Value
$351,865
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 $319,153 and $596,447 should be treated as a rough guide.

Comparable Properties (5)

1202 WESTCOTT DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 4 bath 1,963 sqft Built 1978
Raw Value $315,589
Adjusted Value $349,599

Adjusted +$27,009 for 139 sqft more living space and +$7,001 for being newer. Net adjustment: +$34,010.

1101 COUNTRY AIRE DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,830 sqft Built 1983
Raw Value $373,783
Adjusted Value $428,636

Adjusted +$52,853 for 272 sqft more living space and +$2,000 for being newer. Net adjustment: +$54,853.

3 bed 2 bath 2,006 sqft Built 1975
Raw Value $379,361
Adjusted Value $366,230

Adjusted +$18,654 for 96 sqft more living space and +$10,002 for being newer and -$41,787 for no garage. Net adjustment: -$13,131.

4 bed 3 bath 1,892 sqft Built 1995
Raw Value $607,430
Adjusted Value $596,447

Adjusted +$40,806 for 210 sqft more living space and -$10,002 for being older and -$41,787 for no garage. Net adjustment: -$10,983.

3 bed 2 bath 2,039 sqft Built 2002
Raw Value $365,701
Adjusted Value $319,153

Adjusted +$12,242 for 63 sqft more living space and -$17,003 for being older and -$41,787 for no garage. Net adjustment: -$46,548.

The Neighborhood

This home is in line with the R450X - Round Rock East - Duplex median of $355,449. 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
$351,865
Median
$355,449

This home is -1.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,331 across all districts. With a homestead exemption claimed, that drops to $5,016 — saving $1,315 per year. That's $418 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%$3,143
Round RockCity0.3720%$1,309
Williamson CountyCounty0.3694%$1,300
Austin Community Collegespecial0.1034%$364
Williamson County FM/RdCounty0.0443%$156
Upper Brushy Creek WCIDWater0.0170%$60
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,331

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $366,230 would pay approximately $2,286 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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