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1504 ROBB LN, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

2 bed1 bath1,530 sqftBuilt 1975

Property at a Glance

This home is estimated between $311,955 and $728,334, with a best estimate of $344,144. That places the property below the R462475H - Egger Acres median of $353,946, in a neighborhood that declined 4.4% over the past year.

Estimated Value Range

$311,955 $728,334
Best Estimate
$344,144
WCAD Value
$340,377
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in R462475H - Egger Acres. The estimated range of $311,955 and $728,334 should be treated as a rough guide.

Comparable Properties (5)

1500 ROBB LN, ROUND ROCK, TX 78664
0.00 mi 96% similar Same subdivision
3 bed 2 bath 1,759 sqft Built 1970
Raw Value $395,997
Adjusted Value $344,144

Adjusted -$49,767 for 229 sqft less living space and -$2,086 for being older. Net adjustment: -$51,853.

2 bed 2 bath 1,423 sqft Built 1978
Raw Value $707,683
Adjusted Value $728,334

Adjusted +$23,253 for 107 sqft more living space and +$1,252 for being newer and -$3,854 for no pool. Net adjustment: +$20,651.

3 bed 2 bath 1,448 sqft Built 1977
Raw Value $304,521
Adjusted Value $323,175

Adjusted +$17,820 for 82 sqft more living space and +$834 for being newer. Net adjustment: +$18,654.

3 bed 2 bath 1,329 sqft Built 1977
Raw Value $328,659
Adjusted Value $373,175

Adjusted +$43,682 for 201 sqft more living space and +$834 for being newer. Net adjustment: +$44,516.

3 bed 2 bath 1,324 sqft Built 1978
Raw Value $265,935
Adjusted Value $311,955

Adjusted +$44,768 for 206 sqft more living space and +$1,252 for being newer. Net adjustment: +$46,020.

The Neighborhood

This home is valued 3.8% below the R462475H - Egger Acres median of $353,946. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 4.4% over the past year.

R462475H - Egger Acres

typical
340 Properties
$353,946 Median Value
-4.4% YoY Change
6% Have Pool
87% Have Garage
This Home
$340,377
Median
$353,946

This home is -3.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,124 across all districts. With a homestead exemption claimed, that drops to $4,811 — saving $1,313 per year. That's $401 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%$3,040
Round RockCity0.3720%$1,266
Williamson CountyCounty0.3694%$1,258
Austin Community Collegespecial0.1034%$352
Williamson County FM/RdCounty0.0443%$151
Upper Brushy Creek WCIDWater0.0170%$58
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,124

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $344,144 would pay approximately $2,148 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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