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4012 CASTLE CREEK CV, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,859 sqftBuilt 1999

Property at a Glance

This home is estimated between $196,749 and $670,037, with a best estimate of $547,265. That places the property above the L494500D - Vista Oaks Sec 5B Ph 2 & SEC 5C median of $449,628, in a neighborhood that declined 2.9% over the past year.

Estimated Value Range

$196,749 $670,037
Best Estimate
$547,265
WCAD Value
$627,622
High Confidence

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

Based on 5 comparable properties in L494500D - Vista Oaks Sec 5B Ph 2 & SEC 5C, this home's estimated market value is between $196,749 and $670,037. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4020 CASTLE CREEK CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,284 sqft Built 1996
Raw Value $666,603
Adjusted Value $557,599

Adjusted -$119,661 for 425 sqft less living space and +$10,657 for being newer. Net adjustment: -$109,004.

4022 CASTLE CREEK CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,955 sqft Built 1996
Raw Value $686,409
Adjusted Value $670,037

Adjusted -$27,029 for 96 sqft less living space and +$10,657 for being newer. Net adjustment: -$16,372.

4018 CASTLE CREEK CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,356 sqft Built 1995
Raw Value $672,988
Adjusted Value $547,265

Adjusted -$139,933 for 497 sqft less living space and +$14,210 for being newer. Net adjustment: -$125,723.

4016 CASTLE CREEK CV, ROUND ROCK, TX 78681
0.00 mi 98% similar Same subdivision
4 bed 2 bath 2,654 sqft Built 1995
Raw Value $457,906
Adjusted Value $248,280

Adjusted -$223,836 for 795 sqft less living space and +$14,210 for being newer. Net adjustment: -$209,626.

4014 CASTLE CREEK CV, ROUND ROCK, TX 78681
0.00 mi 95% similar Same subdivision
4 bed 2 bath 3,024 sqft Built 1995
Raw Value $510,551
Adjusted Value $196,749

Adjusted -$328,012 for 1,165 sqft less living space and +$14,210 for being newer. Net adjustment: -$313,802.

The Neighborhood

This home is valued 39.6% above the L494500D - Vista Oaks Sec 5B Ph 2 & SEC 5C median of $449,628. With 904 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 2.9% over the past year.

L494500D - Vista Oaks Sec 5B Ph 2 & SEC 5C

above average
904 Properties
$449,628 Median Value
-2.9% YoY Change
1% Have Pool
99% Have Garage
This Home
$627,622
Median
$449,628

This home is +39.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,139 across all districts. With a homestead exemption claimed, that drops to $10,501 — saving $1,638 per year. That's $875 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
Leander ISDSchool1.0869%$6,822
Williamson CountyCounty0.3694%$2,319
Vista Oaks MUDMUD0.2131%$1,337
Austin Community Collegespecial0.1034%$649
Williamson County ESD #9 - Round RockESD0.0999%$627
Williamson County FM/RdCounty0.0443%$278
Upper Brushy Creek WCIDWater0.0170%$107
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9341%$12,139

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $547,265 would pay approximately $3,416 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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