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2100 RESTON CV, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath2,099 sqftBuilt 2009

Property at a Glance

This home is estimated between $450,358 and $674,166, with a best estimate of $644,722. That places the property above the R417506E - TERAVISTA R4 median of $430,980, in a neighborhood that declined 4.6% over the past year.

Estimated Value Range

$450,358 $674,166
Best Estimate
$644,722
WCAD Value
$755,461
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in R417506E - TERAVISTA R4. The estimated range of $450,358 and $674,166 should be treated as a rough guide.

Comparable Properties (5)

2100 MONTICELLO CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,169 sqft Built 2009
Raw Value $673,669
Adjusted Value $656,980

Adjusted -$16,689 for 70 sqft less living space. Net adjustment: -$16,689.

4 bed 2 bath 2,267 sqft Built 1995
Raw Value $696,240
Adjusted Value $644,722

Adjusted -$40,053 for 168 sqft less living space and -$11,465 for being older. Net adjustment: -$51,518.

3 bed 2,236 sqft Built 2012
Raw Value $623,817
Adjusted Value $593,611

Adjusted -$32,663 for 137 sqft less living space and +$2,457 for being newer. Net adjustment: -$30,206.

3 bed 2 bath 2,373 sqft Built 2011
Raw Value $514,045
Adjusted Value $450,358

Adjusted -$65,325 for 274 sqft less living space and +$1,638 for being newer. Net adjustment: -$63,687.

4 bed 3 bath 1,948 sqft Built 2013
Raw Value $634,890
Adjusted Value $674,166

Adjusted +$36,000 for 151 sqft more living space and +$3,276 for being newer. Net adjustment: +$39,276.

The Neighborhood

This home is valued 75.3% above the R417506E - TERAVISTA R4 median of $430,980. With 1,632 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 4.6% over the past year.

R417506E - TERAVISTA R4

outlier high
1,632 Properties
$430,980 Median Value
-4.6% YoY Change
1% Have Pool
99% Have Garage
This Home
$755,461
Median
$430,980

This home is +75.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,299 across all districts. With a homestead exemption claimed, that drops to $12,909 — saving $1,390 per year. That's $1,076 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%$6,747
Williamson CountyCounty0.3694%$2,791
Williamson County MUD #11MUD0.3656%$2,762
Austin Community Collegespecial0.1034%$781
Williamson County ESD #9 - Round RockESD0.0999%$755
Williamson County FM/RdCounty0.0443%$335
Upper Brushy Creek WCIDWater0.0170%$128
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8928%$14,299

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $644,722 would pay approximately $4,024 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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