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1820 ABERDEEN DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,271 sqftBuilt 1978

Property at a Glance

This home is estimated between $224,281 and $320,898, with a best estimate of $249,951. That places the property above the R463489I - Greenhill Sec 1,3,5 median of $237,198, in a neighborhood that declined 16.7% over the past year.

Estimated Value Range

$224,281 $320,898
Best Estimate
$249,951
WCAD Value
$310,000
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $224,281 and $320,898. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

1806 BRADMORE DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,284 sqft Built 1979
Raw Value $249,467
Adjusted Value $249,951

Adjusted -$2,635 for 13 sqft less living space and +$3,119 for being newer. Net adjustment: +$484.

1810 DENFIELD DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,228 sqft Built 1979
Raw Value $232,658
Adjusted Value $244,493

Adjusted +$8,716 for 43 sqft more living space and +$3,119 for being newer. Net adjustment: +$11,835.

3 bed 2 bath 1,392 sqft Built 1975
Raw Value $258,164
Adjusted Value $224,281

Adjusted -$24,527 for 121 sqft less living space and -$9,356 for being older. Net adjustment: -$33,883.

102 BARRHALL DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,098 sqft Built 1979
Raw Value $251,872
Adjusted Value $290,058

Adjusted +$35,067 for 173 sqft more living space and +$3,119 for being newer. Net adjustment: +$38,186.

3 bed 2 bath 1,303 sqft Built 1985
Raw Value $305,554
Adjusted Value $320,898

Adjusted -$6,486 for 32 sqft less living space and +$21,830 for being newer. Net adjustment: +$15,344.

The Neighborhood

This home is valued 30.7% above the R463489I - Greenhill Sec 1,3,5 median of $237,198. With 286 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 16.7% over the past year.

R463489I - Greenhill Sec 1,3,5

above average
286 Properties
$237,198 Median Value
-16.7% YoY Change
2% Have Pool
82% Have Garage
This Home
$310,000
Median
$237,198

This home is +30.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $5,578 across all districts. With a homestead exemption claimed, that drops to $4,270 — saving $1,308 per year. That's $356 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%$2,769
Round RockCity0.3720%$1,153
Williamson CountyCounty0.3694%$1,145
Austin Community Collegespecial0.1034%$321
Williamson County FM/RdCounty0.0443%$137
Upper Brushy Creek WCIDWater0.0170%$53
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,578

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $249,951 would pay approximately $1,560 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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