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4112 SAPPHIRE LOOP, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath3,208 sqftBuilt 2008

Property at a Glance

This home is estimated between $668,982 and $1,050,357, with a best estimate of $940,257. That places the property above 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

$668,982 $1,050,357
Best Estimate
$940,257
WCAD Value
$647,936
High Confidence

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

Based on 5 comparable properties in L495414C - BORHO/MAYFIELD RANCH/SAPPHIRE LOOP, this home's estimated market value is between $668,982 and $1,050,357. All 5 comparables are in the same subdivision, giving this estimate high confidence.

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 $940,257

Adjusted +$307,388 for 1,003 sqft more living space and -$5,992 for being older. Net adjustment: +$301,396.

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 $1,050,357

Adjusted +$369,294 for 1,205 sqft more living space and -$5,992 for being older. Net adjustment: +$363,302.

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 $710,252

Adjusted +$218,205 for 712 sqft more living space and -$5,992 for being older. Net adjustment: +$212,213.

3815 SAPPHIRE LOOP, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,861 sqft Built 2008
Raw Value $562,637
Adjusted Value $668,982

Adjusted +$106,345 for 347 sqft more living space. Net adjustment: +$106,345.

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 $1,001,834

Adjusted +$371,133 for 1,211 sqft more living space and -$5,992 for being older. Net adjustment: +$365,141.

The Neighborhood

This home is valued 3.9% above the L495414C - BORHO/MAYFIELD RANCH/SAPPHIRE LOOP median of $623,673. With 427 homes in the subdivision, the property sits in the upper tier. 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
$647,936
Median
$623,673

This home is +3.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,914 across all districts. With a homestead exemption claimed, that drops to $11,273 — saving $1,641 per year. That's $939 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%$7,042
Round RockCity0.3720%$2,410
Williamson CountyCounty0.3694%$2,394
Austin Community Collegespecial0.1034%$670
Williamson County FM/RdCounty0.0443%$287
Upper Brushy Creek WCIDWater0.0170%$110
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9931%$12,914

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $940,257 would pay approximately $5,869 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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