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3943 UPPER PASSAGE LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,544 sqftBuilt 2000

Property at a Glance

This home is estimated between $299,812 and $497,016, with a best estimate of $423,153. 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

$299,812 $497,016
Best Estimate
$423,153
WCAD Value
$291,678
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 $299,812 and $497,016. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3939 UPPER PASSAGE LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 922 sqft Built 2000
Raw Value $296,531
Adjusted Value $423,153

Adjusted +$126,622 for 622 sqft more living space. Net adjustment: +$126,622.

3941 UPPER PASSAGE LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,097 sqft Built 2000
Raw Value $365,185
Adjusted Value $456,182

Adjusted +$90,997 for 447 sqft more living space. Net adjustment: +$90,997.

3940 UPPER PASSAGE LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 928 sqft Built 2000
Raw Value $371,615
Adjusted Value $497,016

Adjusted +$125,401 for 616 sqft more living space. Net adjustment: +$125,401.

3933 UPPER PASSAGE LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 922 sqft Built 2000
Raw Value $291,990
Adjusted Value $418,612

Adjusted +$126,622 for 622 sqft more living space. Net adjustment: +$126,622.

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 $299,812

Adjusted -$36,440 for 179 sqft less living space. Net adjustment: -$36,440.

The Neighborhood

This home is valued 20.8% 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

below average
1,045 Properties
$368,194 Median Value
-10.9% YoY Change
1% Have Pool
99% Have Garage
This Home
$291,678
Median
$368,194

This home is -20.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,248 across all districts. With a homestead exemption claimed, that drops to $3,944 — saving $1,304 per year. That's $329 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%$2,605
Round RockCity0.3720%$1,085
Williamson CountyCounty0.3694%$1,078
Austin Community Collegespecial0.1034%$302
Williamson County FM/RdCounty0.0443%$129
Upper Brushy Creek WCIDWater0.0170%$50
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,248

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $423,153 would pay approximately $2,641 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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