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909 WONDER DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed1 bath1,160 sqftBuilt 1930

Property at a Glance

This home is estimated between $4,604 and $262,913, with a best estimate of $192,701. That places the property below the R701575F - OLD TOWN ROUND ROCK median of $319,256, in a neighborhood that appreciated 4.3% over the past year.

Estimated Value Range

$4,604 $262,913
Best Estimate
$192,701
WCAD Value
$160,908
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 $4,604 and $262,913. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

1000 WONDER DR, ROUND ROCK, TX 78681
0.00 mi 96% similar Same subdivision
3 bed 1 bath 2,016 sqft Built 1931
Raw Value $540,000
Adjusted Value $192,701

Adjusted -$219,787 for 856 sqft less living space and -$3,092 for being older and -$124,420 for no garage. Net adjustment: -$347,299.

809 WONDER DR, ROUND ROCK, TX 78681
0.00 mi 86% similar Same subdivision
4 bed 1,540 sqft Built 1935
Raw Value $409,152
Adjusted Value $171,701

Adjusted -$97,569 for 380 sqft less living space and -$15,462 for being older and -$124,420 for no garage. Net adjustment: -$237,451.

707 WONDER DR, ROUND ROCK, TX 78681
0.00 mi 82% similar Same subdivision
2 bed 1 bath 836 sqft Built 1965
Raw Value $287,954
Adjusted Value $262,913

Adjusted +$83,191 for 324 sqft more living space and -$108,232 for being older. Net adjustment: -$25,041.

703 WONDER DR, ROUND ROCK, TX 78681
0.00 mi 80% similar Same subdivision
2 bed 1 bath 1,064 sqft Built 1960
Raw Value $426,984
Adjusted Value $234,443

Adjusted +$24,649 for 96 sqft more living space and -$92,770 for being older and -$124,420 for no garage. Net adjustment: -$192,541.

2 bed 990 sqft Built 2016
Raw Value $226,896
Adjusted Value $4,604

Adjusted +$43,649 for 170 sqft more living space and -$265,941 for being older. Net adjustment: -$222,292.

The Neighborhood

This home is valued 49.6% below the R701575F - OLD TOWN ROUND ROCK median of $319,256. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 4.3% over the past year.

R701575F - OLD TOWN ROUND ROCK

below average
360 Properties
$319,256 Median Value
+4.3% YoY Change
5% Have Pool
24% Have Garage
This Home
$160,908
Median
$319,256

This home is -49.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $2,465 across all districts. With a homestead exemption claimed, that drops to $1,216 — saving $1,249 per year. That's $101 per month a buyer should budget. The assessed value increased +29.2% 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%$1,224
Round RockCity0.3720%$510
Williamson CountyCounty0.3694%$506
Austin Community Collegespecial0.1034%$142
Williamson County FM/RdCounty0.0443%$61
Upper Brushy Creek WCIDWater0.0170%$23
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$2,465
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 $192,701 would pay approximately $1,203 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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