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1603 ROBB LN, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath2,173 sqftBuilt 1977

Property at a Glance

This home is estimated between $426,489 and $464,473, with a best estimate of $436,676. That places the property above the R462475H - Egger Acres median of $353,946, in a neighborhood that declined 4.4% over the past year.

Estimated Value Range

$426,489 $464,473
Best Estimate
$436,676
WCAD Value
$403,848
High Confidence

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

Based on 5 comparable properties in R462475H - Egger Acres, this home's estimated market value is between $426,489 and $464,473. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1606 ROBB LN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,836 sqft Built 1973
Raw Value $358,099
Adjusted Value $429,667

Adjusted +$73,237 for 337 sqft more living space and -$1,669 for being older. Net adjustment: +$71,568.

1704 ROBB LN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,006 sqft Built 1977
Raw Value $390,196
Adjusted Value $426,489

Adjusted +$36,293 for 167 sqft more living space. Net adjustment: +$36,293.

1604 ROBB LN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,596 sqft Built 1973
Raw Value $340,748
Adjusted Value $464,473

Adjusted +$125,394 for 577 sqft more living space and -$1,669 for being older. Net adjustment: +$123,725.

1608 ROBB LN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,160 sqft Built 1975
Raw Value $434,685
Adjusted Value $436,676

Adjusted +$2,825 for 13 sqft more living space and -$834 for being older. Net adjustment: +$1,991.

1708 ROBB LN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,676 sqft Built 1975
Raw Value $343,455
Adjusted Value $450,630

Adjusted +$108,009 for 497 sqft more living space and -$834 for being older. Net adjustment: +$107,175.

The Neighborhood

This home is valued 14.1% above the R462475H - Egger Acres median of $353,946. With 340 homes in the subdivision, the property sits in the upper tier. 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
$403,848
Median
$353,946

This home is +14.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $7,266 across all districts. With a homestead exemption claimed, that drops to $5,941 — saving $1,325 per year. That's $495 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%$3,607
Round RockCity0.3720%$1,502
Williamson CountyCounty0.3694%$1,492
Austin Community Collegespecial0.1034%$418
Williamson County FM/RdCounty0.0443%$179
Upper Brushy Creek WCIDWater0.0170%$69
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,266

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $436,676 would pay approximately $2,726 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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