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16805 WILLOW OAK LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,350 sqftBuilt 1999

Property at a Glance

This home is estimated between $390,304 and $612,064, with a best estimate of $425,176. That places the property below the R292598D - Stone Canyon - Weekley & Newmark median of $523,036, in a neighborhood that declined 5.2% over the past year.

Estimated Value Range

$390,304 $612,064
Best Estimate
$425,176
WCAD Value
$586,133
High Confidence

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

Based on 5 comparable properties in R292598D - Stone Canyon - Weekley & Newmark, this home's estimated market value is between $390,304 and $612,064. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

16803 WILLOW OAK LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,759 sqft Built 1999
Raw Value $526,765
Adjusted Value $390,304

Adjusted -$136,461 for 409 sqft less living space. Net adjustment: -$136,461.

16801 WILLOW OAK LN, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,213 sqft Built 1999
Raw Value $464,682
Adjusted Value $510,391

Adjusted +$45,709 for 137 sqft more living space. Net adjustment: +$45,709.

16809 WILLOW OAK LN, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,718 sqft Built 1999
Raw Value $533,773
Adjusted Value $410,992

Adjusted -$122,781 for 368 sqft less living space. Net adjustment: -$122,781.

8420 SEA ASH CIR, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,519 sqft Built 1998
Raw Value $480,467
Adjusted Value $425,176

Adjusted -$56,386 for 169 sqft less living space and +$1,095 for being newer. Net adjustment: -$55,291.

8422 SEA ASH CIR, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,400 sqft Built 1998
Raw Value $627,651
Adjusted Value $612,064

Adjusted -$16,682 for 50 sqft less living space and +$1,095 for being newer. Net adjustment: -$15,587.

The Neighborhood

This home is valued 12.1% above the R292598D - Stone Canyon - Weekley & Newmark median of $523,036. With 952 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 5.2% over the past year.

R292598D - Stone Canyon - Weekley & Newmark

typical
952 Properties
$523,036 Median Value
-5.2% YoY Change
1% Have Pool
99% Have Garage
This Home
$586,133
Median
$523,036

This home is +12.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,007 across all districts. With a homestead exemption claimed, that drops to $8,648 — saving $1,359 per year. That's $721 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%$5,235
Williamson CountyCounty0.3694%$2,165
Fern Bluff MUDMUD0.1800%$1,055
Austin Community Collegespecial0.1034%$606
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$586
Williamson County FM/RdCounty0.0443%$260
Upper Brushy Creek WCIDWater0.0170%$100
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$10,007

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $425,176 would pay approximately $2,654 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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