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2420 SPARROW DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed1,512 sqftBuilt 1988

Property at a Glance

This home is estimated between $272,043 and $606,787, with a best estimate of $543,524. That places the property above the R280589F - Oakcreek Sec 1,2, and (AMD's) median of $502,867, in a neighborhood that declined 8.9% over the past year.

Estimated Value Range

$272,043 $606,787
Best Estimate
$543,524
WCAD Value
$517,659
High Confidence

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

Based on 5 comparable properties in R280589F - Oakcreek Sec 1,2, and (AMD's), this home's estimated market value is between $272,043 and $606,787. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

2409 SPARROW DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,348 sqft Built 1990
Raw Value $493,054
Adjusted Value $543,524

Adjusted +$54,687 for 164 sqft more living space and -$4,217 for being older. Net adjustment: +$50,470.

2425 SPARROW DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,293 sqft Built 1993
Raw Value $544,303
Adjusted Value $606,787

Adjusted +$73,027 for 219 sqft more living space and -$10,543 for being older. Net adjustment: +$62,484.

2410 SPARROW DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,275 sqft Built 1991
Raw Value $493,836
Adjusted Value $566,539

Adjusted +$79,029 for 237 sqft more living space and -$6,326 for being older. Net adjustment: +$72,703.

2403 SPARROW DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,844 sqft Built 1992
Raw Value $391,184
Adjusted Value $272,043

Adjusted -$110,707 for 332 sqft less living space and -$8,434 for being older. Net adjustment: -$119,141.

2418 SPARROW DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,840 sqft Built 1990
Raw Value $428,441
Adjusted Value $314,851

Adjusted -$109,373 for 328 sqft less living space and -$4,217 for being older. Net adjustment: -$113,590.

The Neighborhood

This home is valued 2.9% above the R280589F - Oakcreek Sec 1,2, and (AMD's) median of $502,867. With 787 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 8.9% over the past year.

R280589F - Oakcreek Sec 1,2, and (AMD's)

typical
787 Properties
$502,867 Median Value
-8.9% YoY Change
2% Have Pool
99% Have Garage
This Home
$517,659
Median
$502,867

This home is +2.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,314 across all districts. With a homestead exemption claimed, that drops to $7,968 — saving $1,346 per year. That's $664 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%$4,623
Round RockCity0.3720%$1,926
Williamson CountyCounty0.3694%$1,912
Austin Community Collegespecial0.1034%$535
Williamson County FM/RdCounty0.0443%$229
Upper Brushy Creek WCIDWater0.0170%$88
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,314

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $543,524 would pay approximately $3,393 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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