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3807 SAPPHIRE CT, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,821 sqftBuilt 2007

Property at a Glance

This home is estimated between $539,342 and $858,001, with a best estimate of $639,814. 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

$539,342 $858,001
Best Estimate
$639,814
WCAD Value
$562,379
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 $539,342 and $858,001. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3804 SAPPHIRE CT, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 3 bath 2,324 sqft Built 2007
Raw Value $705,686
Adjusted Value $858,001

Adjusted +$152,315 for 497 sqft more living space. Net adjustment: +$152,315.

3808 SAPPHIRE CT, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
3 bed 2 bath 2,890 sqft Built 2008
Raw Value $562,485
Adjusted Value $539,342

Adjusted -$21,146 for 69 sqft less living space and -$1,997 for being older. Net adjustment: -$23,143.

4012 SAPPHIRE LOOP, ROUND ROCK, TX 78681
0.10 mi 100% similar Same subdivision
3 bed 2 bath 2,338 sqft Built 2009
Raw Value $495,785
Adjusted Value $639,814

Adjusted +$148,024 for 483 sqft more living space and -$3,995 for being older. Net adjustment: +$144,029.

4000 SAPPHIRE LOOP, ROUND ROCK, TX 78681
0.14 mi 100% similar Same subdivision
3 bed 2 bath 2,366 sqft Built 2007
Raw Value $492,054
Adjusted Value $631,497

Adjusted +$139,443 for 455 sqft more living space. Net adjustment: +$139,443.

3996 SAPPHIRE LOOP, ROUND ROCK, TX 78681
0.15 mi 100% similar Same subdivision
3 bed 2 bath 2,279 sqft Built 2009
Raw Value $484,124
Adjusted Value $646,235

Adjusted +$166,106 for 542 sqft more living space and -$3,995 for being older. Net adjustment: +$162,111.

The Neighborhood

This home is valued 9.8% 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
$562,379
Median
$623,673

This home is -9.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $11,209 across all districts. With a homestead exemption claimed, that drops to $9,583 — saving $1,626 per year. That's $799 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%$6,112
Round RockCity0.3720%$2,092
Williamson CountyCounty0.3694%$2,078
Austin Community Collegespecial0.1034%$581
Williamson County FM/RdCounty0.0443%$249
Upper Brushy Creek WCIDWater0.0170%$96
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9931%$11,209

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $639,814 would pay approximately $3,994 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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