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3840 DORIS LN, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed2 bath1,652 sqftBuilt 1992

Property at a Glance

This home is estimated between $345,135 and $896,315, with a best estimate of $773,089. That places the property above the R575583D - RR Rual Sub 122 & Gattis School Rd Area median of $734,399, in a neighborhood that appreciated 3.8% over the past year.

Estimated Value Range

$345,135 $896,315
Best Estimate
$773,089
WCAD Value
$857,655
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $345,135 and $896,315. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3809 DORIS LN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,822 sqft Built 1983
Raw Value $827,914
Adjusted Value $773,089

Adjusted -$54,712 for 170 sqft less living space and -$113 for being older. Net adjustment: -$54,825.

3848 DORIS LN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,009 sqft Built 1980
Raw Value $924,725
Adjusted Value $809,679

Adjusted -$114,895 for 357 sqft less living space and -$151 for being older. Net adjustment: -$115,046.

3855 DORIS LN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,042 sqft Built 1992
Raw Value $584,832
Adjusted Value $345,135

Adjusted -$125,516 for 390 sqft less living space and -$114,181 for no pool. Net adjustment: -$239,697.

4 bed 2 bath 1,652 sqft Built 2000
Raw Value $490,113
Adjusted Value $490,214

Adjusted +$101 for being newer. Net adjustment: +$101.

3900 DORIS LN, ROUND ROCK, TX 78664
0.00 mi 97% similar Same subdivision
3 bed 2 bath 2,074 sqft Built 1975
Raw Value $1,032,343
Adjusted Value $896,315

Adjusted -$135,814 for 422 sqft less living space and -$214 for being older. Net adjustment: -$136,028.

The Neighborhood

This home is valued 16.8% above the R575583D - RR Rual Sub 122 & Gattis School Rd Area median of $734,399. With 213 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 3.8% over the past year.

R575583D - RR Rual Sub 122 & Gattis School Rd Area

above average
213 Properties
$734,399 Median Value
+3.8% YoY Change
4% Have Pool
68% Have Garage
This Home
$857,655
Median
$734,399

This home is +16.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,349 across all districts. With a homestead exemption claimed, that drops to $10,949 — saving $1,400 per year. That's $912 per month a buyer should budget. The assessed value increased +16.7% vs the subdivision average of +3.8%. This above-average increase gives a protest opportunity score of 95 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$7,222
Williamson CountyCounty0.3694%$2,987
Austin Community Collegespecial0.1034%$836
Williamson County ESD #9 - Round RockESD0.0999%$808
Williamson County FM/RdCounty0.0443%$358
Upper Brushy Creek WCIDWater0.0170%$137
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5272%$12,349
95 / 100

There may be a strong case to protest this appraisal.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $773,089 would pay approximately $4,826 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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