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120 GENNAKER DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,733 sqftBuilt 2017

Property at a Glance

This home is estimated between $534,617 and $929,487, with a best estimate of $715,199. That places the property below the R302609C - HIGHLAND HORIZON median of $781,434, in a neighborhood that appreciated 2.3% over the past year.

Estimated Value Range

$534,617 $929,487
Best Estimate
$715,199
WCAD Value
$752,600
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R302609C - HIGHLAND HORIZON. The estimated range of $534,617 and $929,487 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 1,916 sqft Built 2014
Raw Value $562,011
Adjusted Value $542,716

Adjusted -$56,606 for 183 sqft less living space and +$37,311 for being newer. Net adjustment: -$19,295.

4 bed 3 bath 1,916 sqft Built 2016
Raw Value $578,786
Adjusted Value $534,617

Adjusted -$56,606 for 183 sqft less living space and +$12,437 for being newer. Net adjustment: -$44,169.

4 bed 3 bath 1,811 sqft Built 2014
Raw Value $702,015
Adjusted Value $715,199

Adjusted -$24,127 for 78 sqft less living space and +$37,311 for being newer. Net adjustment: +$13,184.

4 bed 3 bath 2,219 sqft Built 2007
Raw Value $904,649
Adjusted Value $878,686

Adjusted -$150,332 for 486 sqft less living space and +$124,369 for being newer. Net adjustment: -$25,963.

4 bed 3 bath 2,154 sqft Built 2001
Raw Value $860,722
Adjusted Value $929,487

Adjusted -$130,226 for 421 sqft less living space and +$198,991 for being newer. Net adjustment: +$68,765.

The Neighborhood

This home is valued 3.7% below the R302609C - HIGHLAND HORIZON median of $781,434. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 2.3% over the past year.

R302609C - HIGHLAND HORIZON

typical
399 Properties
$781,434 Median Value
+2.3% YoY Change
0% Have Pool
100% Have Garage
This Home
$752,600
Median
$781,434

This home is -3.7% below the subdivision median.

Tax Analysis

The estimated annual property tax is $15,083 across all districts. With a homestead exemption claimed, that drops to $13,694 — saving $1,389 per year. That's $1,141 per month a buyer should budget. The assessed value increased +5.2% vs the subdivision average of +2.3%. This above-average increase gives a protest opportunity score of 30 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$6,721
Brushy Creek MUDMUD0.3868%$2,911
Williamson CountyCounty0.3694%$2,780
Austin Community Collegespecial0.1034%$778
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$753
Brushy Creek MUD Defined AreaMUD0.0900%$677
Williamson County FM/RdCounty0.0443%$334
Upper Brushy Creek WCIDWater0.0170%$128
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0041%$15,083
30 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $715,199 would pay approximately $4,464 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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