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1000 WONDER DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed1 bath2,016 sqftBuilt 1931

Property at a Glance

This home is estimated between $441,536 and $610,212, with a best estimate of $519,001. That places the property above the R701575F - OLD TOWN ROUND ROCK median of $319,256, in a neighborhood that appreciated 4.3% over the past year.

Estimated Value Range

$441,536 $610,212
Best Estimate
$519,001
WCAD Value
$540,000
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $441,536 and $610,212. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

909 WONDER DR, ROUND ROCK, TX 78681
0.00 mi 96% similar Same subdivision
3 bed 1 bath 1,160 sqft Built 1930
Raw Value $160,908
Adjusted Value $508,207

Adjusted +$219,787 for 856 sqft more living space and +$3,092 for being newer and +$124,420 for having a garage. Net adjustment: +$347,299.

809 WONDER DR, ROUND ROCK, TX 78681
0.00 mi 88% similar Same subdivision
4 bed 1,540 sqft Built 1935
Raw Value $409,152
Adjusted Value $519,001

Adjusted +$122,218 for 476 sqft more living space and -$12,369 for being older. Net adjustment: +$109,849.

3 bed 2,433 sqft Built 1975
Raw Value $560,248
Adjusted Value $441,536

Adjusted -$107,069 for 417 sqft less living space and -$136,063 for being older and +$124,420 for having a garage. Net adjustment: -$118,712.

707 WONDER DR, ROUND ROCK, TX 78681
0.00 mi 74% similar Same subdivision
2 bed 1 bath 836 sqft Built 1965
Raw Value $287,954
Adjusted Value $610,212

Adjusted +$302,978 for 1,180 sqft more living space and -$105,140 for being older and +$124,420 for having a garage. Net adjustment: +$322,258.

703 WONDER DR, ROUND ROCK, TX 78681
0.00 mi 67% similar Same subdivision
2 bed 1 bath 1,064 sqft Built 1960
Raw Value $426,984
Adjusted Value $581,742

Adjusted +$244,436 for 952 sqft more living space and -$89,678 for being older. Net adjustment: +$154,758.

The Neighborhood

This home is valued 69.1% above the R701575F - OLD TOWN ROUND ROCK median of $319,256. With 360 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 4.3% over the past year.

R701575F - OLD TOWN ROUND ROCK

outlier high
360 Properties
$319,256 Median Value
+4.3% YoY Change
5% Have Pool
24% Have Garage
This Home
$540,000
Median
$319,256

This home is +69.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,955 across all districts. With a homestead exemption claimed, that drops to $7,613 — saving $1,342 per year. That's $634 per month a buyer should budget. The assessed value increased +16.2% vs the subdivision average of +4.3%. This above-average increase gives a protest opportunity score of 90 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$4,445
Round RockCity0.3720%$1,852
Williamson CountyCounty0.3694%$1,839
Austin Community Collegespecial0.1034%$515
Williamson County FM/RdCounty0.0443%$221
Upper Brushy Creek WCIDWater0.0170%$85
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$8,955
90 / 100

There may be a strong case to protest this appraisal.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $519,001 would pay approximately $3,240 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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