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520 CARINA DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,017 sqftBuilt 2016

Property at a Glance

This home is estimated between $576,275 and $838,039, with a best estimate of $722,494. 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

$576,275 $838,039
Best Estimate
$722,494
WCAD Value
$798,631
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 $576,275 and $838,039 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 1,811 sqft Built 2014
Raw Value $708,623
Adjusted Value $797,218

Adjusted +$63,721 for 206 sqft more living space and +$24,874 for being newer. Net adjustment: +$88,595.

3 bed 2 bath 1,969 sqft Built 2014
Raw Value $536,553
Adjusted Value $576,275

Adjusted +$14,848 for 48 sqft more living space and +$24,874 for being newer. Net adjustment: +$39,722.

4 bed 2 bath 1,597 sqft Built 2015
Raw Value $579,078
Adjusted Value $721,431

Adjusted +$129,916 for 420 sqft more living space and +$12,437 for being newer. Net adjustment: +$142,353.

4 bed 2 bath 1,971 sqft Built 1997
Raw Value $471,963
Adjusted Value $722,494

Adjusted +$14,229 for 46 sqft more living space and +$236,302 for being newer. Net adjustment: +$250,531.

3 bed 2 bath 1,760 sqft Built 2013
Raw Value $721,232
Adjusted Value $838,039

Adjusted +$79,496 for 257 sqft more living space and +$37,311 for being newer. Net adjustment: +$116,807.

The Neighborhood

This home is valued 2.2% above the R302609C - HIGHLAND HORIZON median of $781,434. With 399 homes in the subdivision, the property sits in the upper tier. 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
$798,631
Median
$781,434

This home is +2.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $16,005 across all districts. With a homestead exemption claimed, that drops to $14,608 — saving $1,397 per year. That's $1,217 per month a buyer should budget. The assessed value increased +9.0% vs the subdivision average of +2.3%. This above-average increase gives a protest opportunity score of 54 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$7,133
Brushy Creek MUDMUD0.3868%$3,089
Williamson CountyCounty0.3694%$2,951
Austin Community Collegespecial0.1034%$826
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$799
Brushy Creek MUD Defined AreaMUD0.0900%$719
Williamson County FM/RdCounty0.0443%$354
Upper Brushy Creek WCIDWater0.0170%$136
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0041%$16,005
54 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $722,494 would pay approximately $4,510 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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