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3740 TOP ROCK LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,835 sqftBuilt 1997

Property at a Glance

This home is estimated between $355,737 and $541,059, with a best estimate of $382,805. That places the property above the R107503F - PRESERVE AT STONE OAK - PH 3 & 4 median of $368,194, in a neighborhood that declined 10.9% over the past year.

Estimated Value Range

$355,737 $541,059
Best Estimate
$382,805
WCAD Value
$395,417
High Confidence

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

Based on 5 comparable properties in R107503F - PRESERVE AT STONE OAK - PH 3 & 4, this home's estimated market value is between $355,737 and $541,059. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3730 TOP ROCK LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,036 sqft Built 1996
Raw Value $425,124
Adjusted Value $382,805

Adjusted -$40,918 for 201 sqft less living space and -$1,401 for being older. Net adjustment: -$42,319.

3768 TOP ROCK LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,540 sqft Built 1999
Raw Value $297,501
Adjusted Value $360,357

Adjusted +$60,054 for 295 sqft more living space and +$2,802 for being newer. Net adjustment: +$62,856.

3742 TOP ROCK LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,445 sqft Built 1996
Raw Value $456,413
Adjusted Value $534,406

Adjusted +$79,394 for 390 sqft more living space and -$1,401 for being older. Net adjustment: +$77,993.

3720 TOP ROCK LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,445 sqft Built 1997
Raw Value $461,665
Adjusted Value $541,059

Adjusted +$79,394 for 390 sqft more living space. Net adjustment: +$79,394.

3815 TOP ROCK LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,559 sqft Built 1999
Raw Value $296,749
Adjusted Value $355,737

Adjusted +$56,186 for 276 sqft more living space and +$2,802 for being newer. Net adjustment: +$58,988.

The Neighborhood

This home is valued 7.4% above the R107503F - PRESERVE AT STONE OAK - PH 3 & 4 median of $368,194. With 1,045 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 10.9% over the past year.

R107503F - PRESERVE AT STONE OAK - PH 3 & 4

typical
1,045 Properties
$368,194 Median Value
-10.9% YoY Change
1% Have Pool
99% Have Garage
This Home
$395,417
Median
$368,194

This home is +7.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $7,115 across all districts. With a homestead exemption claimed, that drops to $5,791 — saving $1,324 per year. That's $483 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%$3,531
Round RockCity0.3720%$1,471
Williamson CountyCounty0.3694%$1,461
Austin Community Collegespecial0.1034%$409
Williamson County FM/RdCounty0.0443%$175
Upper Brushy Creek WCIDWater0.0170%$67
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,115

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $382,805 would pay approximately $2,389 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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