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5812 ARBIA LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,168 sqftBuilt 2017

Property at a Glance

This home is estimated between $442,332 and $746,000, with a best estimate of $454,681. That places the property above the H121413C - SIENA median of $406,354, in a neighborhood that declined 5.4% over the past year.

Estimated Value Range

$442,332 $746,000
Best Estimate
$454,681
WCAD Value
$402,506
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in H121413C - SIENA. The estimated range of $442,332 and $746,000 should be treated as a rough guide.

Comparable Properties (5)

5715 ARBIA LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,887 sqft Built 2016
Raw Value $380,697
Adjusted Value $442,332

Adjusted +$59,406 for 281 sqft more living space and +$2,229 for being newer. Net adjustment: +$61,635.

3 bed 2 bath 2,311 sqft Built 2010
Raw Value $469,313
Adjusted Value $454,681

Adjusted -$30,232 for 143 sqft less living space and +$15,600 for being newer. Net adjustment: -$14,632.

3 bed 2 bath 2,380 sqft Built 2016
Raw Value $496,423
Adjusted Value $453,833

Adjusted -$44,819 for 212 sqft less living space and +$2,229 for being newer. Net adjustment: -$42,590.

5810 LUCCA LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,528 sqft Built 2018
Raw Value $334,847
Adjusted Value $467,920

Adjusted +$135,302 for 640 sqft more living space and -$2,229 for being older. Net adjustment: +$133,073.

3 bed 2,039 sqft Built 2011
Raw Value $705,356
Adjusted Value $746,000

Adjusted +$27,272 for 129 sqft more living space and +$13,372 for being newer. Net adjustment: +$40,644.

The Neighborhood

This home is in line with the H121413C - SIENA median of $406,354. Note that values in this subdivision declined 5.4% over the past year.

H121413C - SIENA

typical
1,611 Properties
$406,354 Median Value
-5.4% YoY Change
1% Have Pool
100% Have Garage
This Home
$402,506
Median
$406,354

This home is -0.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,265 across all districts. With a homestead exemption claimed, that drops to $7,503 — saving $1,762 per year. That's $625 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
Hutto ISDSchool1.2052%$4,851
Siena MUD #1MUD0.5250%$2,113
Williamson CountyCounty0.3694%$1,487
Williamson County ESD #3 - HuttoESD0.1000%$403
Williamson County FM/RdCounty0.0443%$178
EWC Higher Ed Centerspecial0.0409%$165
Upper Brushy Creek WCIDWater0.0170%$68
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$9,265

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $454,681 would pay approximately $2,838 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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