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3832 SAPPHIRE LOOP, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,815 sqftBuilt 2010

Property at a Glance

This home is estimated between $287,337 and $791,466, with a best estimate of $578,919. 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

$287,337 $791,466
Best Estimate
$578,919
WCAD Value
$599,020
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 $287,337 and $791,466. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3917 SAPPHIRE LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,205 sqft Built 2011
Raw Value $638,861
Adjusted Value $517,341

Adjusted -$119,523 for 390 sqft less living space and -$1,997 for being older. Net adjustment: -$121,520.

4009 SAPPHIRE LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,003 sqft Built 2011
Raw Value $687,055
Adjusted Value $627,442

Adjusted -$57,616 for 188 sqft less living space and -$1,997 for being older. Net adjustment: -$59,613.

4 bed 3 bath 1,704 sqft Built 2004
Raw Value $745,463
Adjusted Value $791,466

Adjusted +$34,018 for 111 sqft more living space and +$11,985 for being newer. Net adjustment: +$46,003.

3920 SAPPHIRE LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,496 sqft Built 2011
Raw Value $498,039
Adjusted Value $287,337

Adjusted -$208,705 for 681 sqft less living space and -$1,997 for being older. Net adjustment: -$210,702.

4013 SAPPHIRE LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,997 sqft Built 2011
Raw Value $636,693
Adjusted Value $578,919

Adjusted -$55,777 for 182 sqft less living space and -$1,997 for being older. Net adjustment: -$57,774.

The Neighborhood

This home is valued 4.0% 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
$599,020
Median
$623,673

This home is -4.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $11,939 across all districts. With a homestead exemption claimed, that drops to $10,307 — saving $1,632 per year. That's $859 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%$6,511
Round RockCity0.3720%$2,228
Williamson CountyCounty0.3694%$2,213
Austin Community Collegespecial0.1034%$619
Williamson County FM/RdCounty0.0443%$266
Upper Brushy Creek WCIDWater0.0170%$102
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9931%$11,939

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $578,919 would pay approximately $3,614 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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