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3993 SAPPHIRE LOOP, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,275 sqftBuilt 2009

Property at a Glance

This home is estimated between $411,428 and $523,999, with a best estimate of $467,150. 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

$411,428 $523,999
Best Estimate
$467,150
WCAD Value
$573,763
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in L495414C - BORHO/MAYFIELD RANCH/SAPPHIRE LOOP. The estimated range of $411,428 and $523,999 should be treated as a rough guide.

Comparable Properties (5)

4 bed 2 bath 1,384 sqft Built 2006
Raw Value $494,563
Adjusted Value $467,150

Adjusted -$33,405 for 109 sqft less living space and +$5,992 for being newer. Net adjustment: -$27,413.

4 bed 2 bath 1,446 sqft Built 2006
Raw Value $523,045
Adjusted Value $476,631

Adjusted -$52,406 for 171 sqft less living space and +$5,992 for being newer. Net adjustment: -$46,414.

4 bed 2 bath 1,237 sqft Built 1993
Raw Value $480,394
Adjusted Value $523,999

Adjusted +$11,646 for 38 sqft more living space and +$31,959 for being newer. Net adjustment: +$43,605.

4 bed 2 bath 1,328 sqft Built 1993
Raw Value $442,534
Adjusted Value $458,250

Adjusted -$16,243 for 53 sqft less living space and +$31,959 for being newer. Net adjustment: +$15,716.

4013 SAPPHIRE LOOP, ROUND ROCK, TX 78681
0.00 mi 97% similar Same subdivision
4 bed 3 bath 1,997 sqft Built 2011
Raw Value $636,693
Adjusted Value $411,428

Adjusted -$221,270 for 722 sqft less living space and -$3,995 for being older. Net adjustment: -$225,265.

The Neighborhood

This home is valued 8.0% 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
$573,763
Median
$623,673

This home is -8.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $11,436 across all districts. With a homestead exemption claimed, that drops to $9,808 — saving $1,628 per year. That's $817 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%$6,236
Round RockCity0.3720%$2,134
Williamson CountyCounty0.3694%$2,120
Austin Community Collegespecial0.1034%$593
Williamson County FM/RdCounty0.0443%$254
Upper Brushy Creek WCIDWater0.0170%$98
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9931%$11,436

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $467,150 would pay approximately $2,916 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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