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3928 CREST LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,785 sqftBuilt 2007

Property at a Glance

This home is estimated between $501,093 and $875,103, with a best estimate of $587,108. That places the property below the L495414C - BORHO/MAYFIELD RANCH/SAPPHIRE LOOP median of $623,673, in a neighborhood that declined 8.0% over the past year.

Estimated Value Range

$501,093 $875,103
Best Estimate
$587,108
WCAD Value
$551,693
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 $501,093 and $875,103. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

4008 CREST CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,353 sqft Built 2006
Raw Value $674,528
Adjusted Value $808,919

Adjusted +$132,394 for 432 sqft more living space and +$1,997 for being newer. Net adjustment: +$134,391.

4011 CREST CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 3,107 sqft Built 2007
Raw Value $599,776
Adjusted Value $501,093

Adjusted -$98,683 for 322 sqft less living space. Net adjustment: -$98,683.

3 bed 2 bath 2,548 sqft Built 2006
Raw Value $490,078
Adjusted Value $564,708

Adjusted +$72,633 for 237 sqft more living space and +$1,997 for being newer. Net adjustment: +$74,630.

3924 CREST LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,755 sqft Built 2007
Raw Value $577,914
Adjusted Value $587,108

Adjusted +$9,194 for 30 sqft more living space. Net adjustment: +$9,194.

4004 CREST CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,179 sqft Built 2006
Raw Value $687,386
Adjusted Value $875,103

Adjusted +$185,720 for 606 sqft more living space and +$1,997 for being newer. Net adjustment: +$187,717.

The Neighborhood

This home is valued 11.5% below the L495414C - BORHO/MAYFIELD RANCH/SAPPHIRE LOOP median of $623,673. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 8.0% over the past year.

L495414C - BORHO/MAYFIELD RANCH/SAPPHIRE LOOP

typical
427 Properties
$623,673 Median Value
-8.0% YoY Change
1% Have Pool
100% Have Garage
This Home
$551,693
Median
$623,673

This home is -11.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,996 across all districts. With a homestead exemption claimed, that drops to $9,372 — saving $1,624 per year. That's $781 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
Leander ISDSchool1.0869%$5,996
Round RockCity0.3720%$2,052
Williamson CountyCounty0.3694%$2,038
Austin Community Collegespecial0.1034%$570
Williamson County FM/RdCounty0.0443%$245
Upper Brushy Creek WCIDWater0.0170%$94
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9931%$10,996

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $587,108 would pay approximately $3,665 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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