Beta Williamson County, TX only — data and coverage are limited during early access.

1721 ZIMMERMAN LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,944 sqftBuilt 1984

Property at a Glance

This home is estimated between $355,739 and $429,171, with a best estimate of $398,598. That places the property above the R115483H - Creekbend median of $367,111, in a neighborhood that declined 4.0% over the past year.

Estimated Value Range

$355,739 $429,171
Best Estimate
$398,598
WCAD Value
$435,838
High Confidence

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

Based on 5 comparable properties in R115483H - Creekbend, this home's estimated market value is between $355,739 and $429,171. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1719 ZIMMERMAN LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,935 sqft Built 1984
Raw Value $379,725
Adjusted Value $381,719

Adjusted +$1,994 for 9 sqft more living space. Net adjustment: +$1,994.

1714 ZIMMERMAN LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,684 sqft Built 1984
Raw Value $361,009
Adjusted Value $418,620

Adjusted +$57,611 for 260 sqft more living space. Net adjustment: +$57,611.

1727 ZIMMERMAN LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,504 sqft Built 1984
Raw Value $331,676
Adjusted Value $429,171

Adjusted +$97,495 for 440 sqft more living space. Net adjustment: +$97,495.

1710 ZIMMERMAN LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,037 sqft Built 1984
Raw Value $376,346
Adjusted Value $355,739

Adjusted -$20,607 for 93 sqft less living space. Net adjustment: -$20,607.

1715 ZIMMERMAN LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,699 sqft Built 1984
Raw Value $344,311
Adjusted Value $398,598

Adjusted +$54,287 for 245 sqft more living space. Net adjustment: +$54,287.

The Neighborhood

This home is valued 18.7% above the R115483H - Creekbend median of $367,111. With 187 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 4.0% over the past year.

R115483H - Creekbend

above average
187 Properties
$367,111 Median Value
-4.0% YoY Change
1% Have Pool
97% Have Garage
This Home
$435,838
Median
$367,111

This home is +18.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $7,842 across all districts. With a homestead exemption claimed, that drops to $6,511 — saving $1,331 per year. That's $543 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%$3,892
Round RockCity0.3720%$1,621
Williamson CountyCounty0.3694%$1,610
Austin Community Collegespecial0.1034%$451
Williamson County FM/RdCounty0.0443%$193
Upper Brushy Creek WCIDWater0.0170%$74
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,842

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $398,598 would pay approximately $2,488 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.

View full property details