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1400 JOYCE LN, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath2,364 sqftBuilt 1978

Property at a Glance

This home is estimated between $438,570 and $561,601, with a best estimate of $545,090. That places the property below the R575583D - RR Rual Sub 122 & Gattis School Rd Area median of $734,399, in a neighborhood that appreciated 3.8% over the past year.

Estimated Value Range

$438,570 $561,601
Best Estimate
$545,090
WCAD Value
$734,399
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R575583D - RR Rual Sub 122 & Gattis School Rd Area. The estimated range of $438,570 and $561,601 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,798 sqft Built 1971
Raw Value $363,020
Adjusted Value $545,090

Adjusted +$182,158 for 566 sqft more living space and -$88 for being older. Net adjustment: +$182,070.

3 bed 2 bath 1,684 sqft Built 1981
Raw Value $325,839
Adjusted Value $544,725

Adjusted +$218,848 for 680 sqft more living space and +$38 for being newer. Net adjustment: +$218,886.

3 bed 2 bath 1,543 sqft Built 1979
Raw Value $285,885
Adjusted Value $550,124

Adjusted +$264,226 for 821 sqft more living space and +$13 for being newer. Net adjustment: +$264,239.

4 bed 2 bath 2,412 sqft Built 1999
Raw Value $453,754
Adjusted Value $438,570

Adjusted -$15,448 for 48 sqft less living space and +$264 for being newer. Net adjustment: -$15,184.

3 bed 2 bath 1,487 sqft Built 1978
Raw Value $279,352
Adjusted Value $561,601

Adjusted +$282,249 for 877 sqft more living space. Net adjustment: +$282,249.

The Neighborhood

This home is in line with the R575583D - RR Rual Sub 122 & Gattis School Rd Area median of $734,399. The neighborhood appreciated 3.8% over the past year.

R575583D - RR Rual Sub 122 & Gattis School Rd Area

typical
213 Properties
$734,399 Median Value
+3.8% YoY Change
4% Have Pool
68% Have Garage
This Home
$734,399
Median
$734,399

This home is +0.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $13,214 across all districts. With a homestead exemption claimed, that drops to $11,828 — saving $1,386 per year. That's $986 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
Round Rock ISDSchool0.8931%$6,559
Round RockCity0.3720%$2,732
Williamson CountyCounty0.3694%$2,713
Austin Community Collegespecial0.1034%$759
Williamson County FM/RdCounty0.0443%$326
Upper Brushy Creek WCIDWater0.0170%$125
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$13,214

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $545,090 would pay approximately $3,402 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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