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2912 COTTON GIN DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,138 sqftBuilt 2017

Property at a Glance

This home is estimated between $398,073 and $475,301, with a best estimate of $416,383. That places the property below the R642317C - NORTHFIELDS median of $439,784, in a neighborhood that declined 4.8% over the past year.

Estimated Value Range

$398,073 $475,301
Best Estimate
$416,383
WCAD Value
$343,990
High Confidence

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

Based on 5 comparable properties in R642317C - NORTHFIELDS, this home's estimated market value is between $398,073 and $475,301. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

2940 COTTON GIN DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,096 sqft Built 2017
Raw Value $384,416
Adjusted Value $398,073

Adjusted +$13,657 for 42 sqft more living space. Net adjustment: +$13,657.

2916 COTTON GIN DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,096 sqft Built 2017
Raw Value $384,416
Adjusted Value $398,073

Adjusted +$13,657 for 42 sqft more living space. Net adjustment: +$13,657.

2920 COTTON GIN DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 864 sqft Built 2017
Raw Value $327,289
Adjusted Value $416,383

Adjusted +$89,094 for 274 sqft more living space. Net adjustment: +$89,094.

2908 COTTON GIN DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 864 sqft Built 2017
Raw Value $327,289
Adjusted Value $416,383

Adjusted +$89,094 for 274 sqft more living space. Net adjustment: +$89,094.

2924 COTTON GIN DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 744 sqft Built 2017
Raw Value $347,188
Adjusted Value $475,301

Adjusted +$128,113 for 394 sqft more living space. Net adjustment: +$128,113.

The Neighborhood

This home is valued 21.8% below the R642317C - NORTHFIELDS median of $439,784. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 4.8% over the past year.

R642317C - NORTHFIELDS

below average
182 Properties
$439,784 Median Value
-4.8% YoY Change
0% Have Pool
100% Have Garage
This Home
$343,990
Median
$439,784

This home is -21.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,189 across all districts. With a homestead exemption claimed, that drops to $4,875 — saving $1,314 per year. That's $406 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%$3,072
Round RockCity0.3720%$1,280
Williamson CountyCounty0.3694%$1,271
Austin Community Collegespecial0.1034%$356
Williamson County FM/RdCounty0.0443%$152
Upper Brushy Creek WCIDWater0.0170%$58
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,189

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $416,383 would pay approximately $2,599 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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