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4005 COLINA CV, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath3,449 sqftBuilt 2005

Property at a Glance

This home is estimated between $877,761 and $1,286,866, with a best estimate of $999,626. That places the property above the R102606C - SENDERO SPRINGS / BEHREN'S RANCH R5 median of $750,158, in a neighborhood that appreciated 0.3% over the past year.

Estimated Value Range

$877,761 $1,286,866
Best Estimate
$999,626
WCAD Value
$1,031,870
High Confidence

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

Based on 5 comparable properties in R102606C - SENDERO SPRINGS / BEHREN'S RANCH R5, this home's estimated market value is between $877,761 and $1,286,866. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4102 COLINA CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,344 sqft Built 2006
Raw Value $875,288
Adjusted Value $1,286,866

Adjusted +$408,818 for 1,105 sqft more living space and +$2,760 for being newer. Net adjustment: +$411,578.

4002 COLINA CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,225 sqft Built 2007
Raw Value $772,045
Adjusted Value $1,230,411

Adjusted +$452,845 for 1,224 sqft more living space and +$5,521 for being newer. Net adjustment: +$458,366.

4100 COLINA CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 3,097 sqft Built 2006
Raw Value $773,273
Adjusted Value $906,263

Adjusted +$130,230 for 352 sqft more living space and +$2,760 for being newer. Net adjustment: +$132,990.

4103 COLINA CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 3,359 sqft Built 2005
Raw Value $844,464
Adjusted Value $877,761

Adjusted +$33,297 for 90 sqft more living space. Net adjustment: +$33,297.

4003 COLINA CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 3,183 sqft Built 2005
Raw Value $901,214
Adjusted Value $999,626

Adjusted +$98,412 for 266 sqft more living space. Net adjustment: +$98,412.

The Neighborhood

This home is valued 37.6% above the R102606C - SENDERO SPRINGS / BEHREN'S RANCH R5 median of $750,158. With 1,049 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 0.3% over the past year.

R102606C - SENDERO SPRINGS / BEHREN'S RANCH R5

above average
1,049 Properties
$750,158 Median Value
+0.3% YoY Change
1% Have Pool
99% Have Garage
This Home
$1,031,870
Median
$750,158

This home is +37.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $20,039 across all districts. With a homestead exemption claimed, that drops to $18,604 — saving $1,435 per year. That's $1,550 per month a buyer should budget. The assessed value increased +9.7% vs the subdivision average of +0.3%. This above-average increase gives a protest opportunity score of 67 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$8,930
Brushy Creek MUDMUD0.3868%$3,868
Williamson CountyCounty0.3694%$3,694
Austin Community Collegespecial0.1034%$1,034
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$1,000
Brushy Creek MUD Defined AreaMUD0.0900%$900
Williamson County FM/RdCounty0.0443%$443
Upper Brushy Creek WCIDWater0.0170%$170
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0041%$20,039
67 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $999,626 would pay approximately $6,240 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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