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3809 SIR NOAH TUCKER DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed4 bath2,152 sqftBuilt 2021

Property at a Glance

This home is estimated between $393,981 and $808,043, with a best estimate of $708,614. That places the property above the G799514C - MAYFIELD RANCH median of $523,371, in a neighborhood that declined 9.3% over the past year.

Estimated Value Range

$393,981 $808,043
Best Estimate
$708,614
WCAD Value
$664,246
Low Confidence

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

There are 5 comparable properties within range, but few are in G799514C - MAYFIELD RANCH. The estimated range of $393,981 and $808,043 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 2,047 sqft Built 2000
Raw Value $746,419
Adjusted Value $808,043

Adjusted +$23,276 for 105 sqft more living space and +$38,348 for being newer. Net adjustment: +$61,624.

4 bed 3 bath 2,000 sqft Built 2001
Raw Value $638,398
Adjusted Value $708,614

Adjusted +$33,694 for 152 sqft more living space and +$36,522 for being newer. Net adjustment: +$70,216.

3804 KYLER GLEN RD, ROUND ROCK, TX 78681
0.00 mi 90% similar Same subdivision
3 bed 2 bath 3,206 sqft Built 2016
Raw Value $618,495
Adjusted Value $393,981

Adjusted -$233,644 for 1,054 sqft less living space and +$9,130 for being newer. Net adjustment: -$224,514.

4 bed 3 bath 2,340 sqft Built 2000
Raw Value $777,120
Adjusted Value $773,793

Adjusted -$41,675 for 188 sqft less living space and +$38,348 for being newer. Net adjustment: -$3,327.

4 bed 3 bath 2,356 sqft Built 2000
Raw Value $474,981
Adjusted Value $468,108

Adjusted -$45,221 for 204 sqft less living space and +$38,348 for being newer. Net adjustment: -$6,873.

The Neighborhood

This home is valued 26.9% above the G799514C - MAYFIELD RANCH median of $523,371. With 1,093 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 9.3% over the past year.

G799514C - MAYFIELD RANCH

above average
1,093 Properties
$523,371 Median Value
-9.3% YoY Change
1% Have Pool
100% Have Garage
This Home
$664,246
Median
$523,371

This home is +26.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $13,725 across all districts. With a homestead exemption claimed, that drops to $12,132 — saving $1,593 per year. That's $1,011 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
Georgetown ISDSchool1.0506%$6,979
Highlands at Mayfield Ranch MUDMUD0.4850%$3,222
Williamson CountyCounty0.3694%$2,454
Williamson County ESD #9 - Round RockESD0.0999%$664
Williamson County FM/RdCounty0.0443%$294
Upper Brushy Creek WCIDWater0.0170%$113
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0663%$13,725

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $708,614 would pay approximately $4,423 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 4/19/2026.

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