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1816 NICOLE CIR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,022 sqftBuilt 1980

Property at a Glance

This home is estimated between $222,900 and $255,026, with a best estimate of $228,245. That places the property below the R450X - Round Rock East - Duplex median of $355,449, in a neighborhood that declined 8.7% over the past year.

Estimated Value Range

$222,900 $255,026
Best Estimate
$228,245
WCAD Value
$362,091
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in R450X - Round Rock East - Duplex. The estimated range of $222,900 and $255,026 should be treated as a rough guide.

Comparable Properties (5)

1934 NICOLE CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,608 sqft Built 1981
Raw Value $301,325
Adjusted Value $228,245

Adjusted -$113,867 for 586 sqft less living space and -$1,000 for being older and +$41,787 for having a garage. Net adjustment: -$73,080.

3 bed 2 bath 982 sqft Built 1983
Raw Value $248,712
Adjusted Value $253,483

Adjusted +$7,772 for 40 sqft more living space and -$3,001 for being older. Net adjustment: +$4,771.

1806 NICOLE CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,608 sqft Built 1979
Raw Value $294,600
Adjusted Value $223,520

Adjusted -$113,867 for 586 sqft less living space and +$1,000 for being newer and +$41,787 for having a garage. Net adjustment: -$71,080.

3 bed 2 bath 1,022 sqft Built 1981
Raw Value $223,900
Adjusted Value $222,900

Adjusted -$1,000 for being older. Net adjustment: -$1,000.

3 bed 2 bath 1,121 sqft Built 1985
Raw Value $279,264
Adjusted Value $255,026

Adjusted -$19,237 for 99 sqft less living space and -$5,001 for being older. Net adjustment: -$24,238.

The Neighborhood

This home is valued 1.9% above the R450X - Round Rock East - Duplex median of $355,449. With 836 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 8.7% over the past year.

R450X - Round Rock East - Duplex

typical
836 Properties
$355,449 Median Value
-8.7% YoY Change
0% Have Pool
84% Have Garage
This Home
$362,091
Median
$355,449

This home is +1.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,515 across all districts. With a homestead exemption claimed, that drops to $5,198 — saving $1,317 per year. That's $433 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%$3,234
Round RockCity0.3720%$1,347
Williamson CountyCounty0.3694%$1,338
Austin Community Collegespecial0.1034%$374
Williamson County FM/RdCounty0.0443%$161
Upper Brushy Creek WCIDWater0.0170%$62
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,515

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $228,245 would pay approximately $1,425 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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