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3611 CARNOUSTY CV, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

5 bed4 bath2,388 sqftBuilt 2000

Property at a Glance

This home is estimated between $702,624 and $920,085, with a best estimate of $840,187. That places the property below the R549699C - Forest Creek Sec 14,20,21,26-30,33,34 median of $910,927, in a neighborhood that declined 3.1% over the past year.

Estimated Value Range

$702,624 $920,085
Best Estimate
$840,187
WCAD Value
$806,875
High Confidence

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

Based on 5 comparable properties in R549699C - Forest Creek Sec 14,20,21,26-30,33,34, this home's estimated market value is between $702,624 and $920,085. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3605 CARNOUSTY CV, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
5 bed 4 bath 2,526 sqft Built 2001
Raw Value $905,900
Adjusted Value $859,083

Adjusted -$48,279 for 138 sqft less living space and +$1,462 for being newer. Net adjustment: -$46,817.

3115 CARNOUSTY ST, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
5 bed 5 bath 3,145 sqft Built 2004
Raw Value $1,099,173
Adjusted Value $840,187

Adjusted -$264,836 for 757 sqft less living space and +$5,850 for being newer. Net adjustment: -$258,986.

3104 CARNOUSTY ST, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
5 bed 4 bath 2,515 sqft Built 2001
Raw Value $841,337
Adjusted Value $798,368

Adjusted -$44,431 for 127 sqft less living space and +$1,462 for being newer. Net adjustment: -$42,969.

3114 CARNOUSTY ST, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,899 sqft Built 2005
Raw Value $874,085
Adjusted Value $702,624

Adjusted -$178,773 for 511 sqft less living space and +$7,312 for being newer. Net adjustment: -$171,461.

3118 CARNOUSTY ST, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
5 bed 4 bath 2,438 sqft Built 2014
Raw Value $917,104
Adjusted Value $920,085

Adjusted -$17,492 for 50 sqft less living space and +$20,473 for being newer. Net adjustment: +$2,981.

The Neighborhood

This home is valued 11.4% below the R549699C - Forest Creek Sec 14,20,21,26-30,33,34 median of $910,927. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 3.1% over the past year.

R549699C - Forest Creek Sec 14,20,21,26-30,33,34

typical
271 Properties
$910,927 Median Value
-3.1% YoY Change
1% Have Pool
99% Have Garage
This Home
$806,875
Median
$910,927

This home is -11.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $14,518 across all districts. With a homestead exemption claimed, that drops to $13,119 — saving $1,399 per year. That's $1,093 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%$7,206
Round RockCity0.3720%$3,002
Williamson CountyCounty0.3694%$2,981
Austin Community Collegespecial0.1034%$834
Williamson County FM/RdCounty0.0443%$358
Upper Brushy Creek WCIDWater0.0170%$137
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$14,518

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $840,187 would pay approximately $5,244 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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