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3928 UPPER PASSAGE LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,957 sqftBuilt 2000

Property at a Glance

This home is estimated between $375,754 and $399,301, with a best estimate of $384,208. 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

$375,754 $399,301
Best Estimate
$384,208
WCAD Value
$372,492
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 $375,754 and $399,301. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3926 UPPER PASSAGE LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,723 sqft Built 2000
Raw Value $336,252
Adjusted Value $383,888

Adjusted +$47,636 for 234 sqft more living space. Net adjustment: +$47,636.

3927 UPPER PASSAGE LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,682 sqft Built 2000
Raw Value $343,318
Adjusted Value $399,301

Adjusted +$55,983 for 275 sqft more living space. Net adjustment: +$55,983.

3943 UPPER PASSAGE LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,544 sqft Built 2000
Raw Value $291,678
Adjusted Value $375,754

Adjusted +$84,076 for 413 sqft more living space. Net adjustment: +$84,076.

3922 UPPER PASSAGE LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,813 sqft Built 2000
Raw Value $354,893
Adjusted Value $384,208

Adjusted +$29,315 for 144 sqft more living space. Net adjustment: +$29,315.

3942 UPPER PASSAGE LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,682 sqft Built 2000
Raw Value $331,167
Adjusted Value $387,150

Adjusted +$55,983 for 275 sqft more living space. Net adjustment: +$55,983.

The Neighborhood

This home is valued 1.2% 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
$372,492
Median
$368,194

This home is +1.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,702 across all districts. With a homestead exemption claimed, that drops to $5,383 — saving $1,319 per year. That's $449 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%$3,327
Round RockCity0.3720%$1,386
Williamson CountyCounty0.3694%$1,376
Austin Community Collegespecial0.1034%$385
Williamson County FM/RdCounty0.0443%$165
Upper Brushy Creek WCIDWater0.0170%$63
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,702

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $384,208 would pay approximately $2,398 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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