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3748 TOP ROCK LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,830 sqftBuilt 1996

Property at a Glance

This home is estimated between $356,119 and $541,442, with a best estimate of $383,188. 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

$356,119 $541,442
Best Estimate
$383,188
WCAD Value
$334,158
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 $356,119 and $541,442. 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 $383,188

Adjusted -$41,936 for 206 sqft less living space. Net adjustment: -$41,936.

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 $360,739

Adjusted +$59,036 for 290 sqft more living space and +$4,202 for being newer. Net adjustment: +$63,238.

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 $534,789

Adjusted +$78,376 for 385 sqft more living space. Net adjustment: +$78,376.

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 $541,442

Adjusted +$78,376 for 385 sqft more living space and +$1,401 for being newer. Net adjustment: +$79,777.

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 $356,119

Adjusted +$55,168 for 271 sqft more living space and +$4,202 for being newer. Net adjustment: +$59,370.

The Neighborhood

This home is valued 9.2% below the R107503F - PRESERVE AT STONE OAK - PH 3 & 4 median of $368,194. That positions it competitively for buyers comparing within the neighborhood. 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
$334,158
Median
$368,194

This home is -9.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,012 across all districts. With a homestead exemption claimed, that drops to $4,700 — 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%$2,984
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%$6,012

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $383,188 would pay approximately $2,392 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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