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2400 SPARROW DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,744 sqftBuilt 1996

Property at a Glance

This home is estimated between $329,368 and $701,017, with a best estimate of $637,753. 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

$329,368 $701,017
Best Estimate
$637,753
WCAD Value
$414,830
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 $329,368 and $701,017. 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 $637,753

Adjusted +$132,048 for 396 sqft more living space and +$12,651 for being newer. Net adjustment: +$144,699.

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 $701,017

Adjusted +$150,388 for 451 sqft more living space and +$6,326 for being newer. Net adjustment: +$156,714.

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 $660,769

Adjusted +$156,390 for 469 sqft more living space and +$10,543 for being newer. Net adjustment: +$166,933.

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 $366,273

Adjusted -$33,345 for 100 sqft less living space and +$8,434 for being newer. Net adjustment: -$24,911.

2414 SPARROW DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,067 sqft Built 1989
Raw Value $422,314
Adjusted Value $329,368

Adjusted -$107,706 for 323 sqft less living space and +$14,760 for being newer. Net adjustment: -$92,946.

The Neighborhood

This home is valued 17.5% below the R280589F - Oakcreek Sec 1,2, and (AMD's) median of $502,867. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 8.9% over the past year.

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

below average
787 Properties
$502,867 Median Value
-8.9% YoY Change
2% Have Pool
99% Have Garage
This Home
$414,830
Median
$502,867

This home is -17.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,464 across all districts. With a homestead exemption claimed, that drops to $6,137 — saving $1,327 per year. That's $511 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%$3,705
Round RockCity0.3720%$1,543
Williamson CountyCounty0.3694%$1,533
Austin Community Collegespecial0.1034%$429
Williamson County FM/RdCounty0.0443%$184
Upper Brushy Creek WCIDWater0.0170%$71
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,464

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $637,753 would pay approximately $3,981 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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