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1704 ROBB LN, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed2 bath2,006 sqftBuilt 1977

Property at a Glance

This home is estimated between $367,555 and $428,181, with a best estimate of $400,384. 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

$367,555 $428,181
Best Estimate
$400,384
WCAD Value
$390,196
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 $367,555 and $428,181. 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 $393,375

Adjusted +$36,945 for 170 sqft more living space and -$1,669 for being older. Net adjustment: +$35,276.

1603 ROBB LN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,173 sqft Built 1977
Raw Value $403,848
Adjusted Value $367,555

Adjusted -$36,293 for 167 sqft less 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 $428,181

Adjusted +$89,102 for 410 sqft more living space and -$1,669 for being older. Net adjustment: +$87,433.

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 $400,384

Adjusted -$33,467 for 154 sqft less living space and -$834 for being older. Net adjustment: -$34,301.

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 $414,337

Adjusted +$71,716 for 330 sqft more living space and -$834 for being older. Net adjustment: +$70,882.

The Neighborhood

This home is valued 10.2% 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
$390,196
Median
$353,946

This home is +10.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $7,021 across all districts. With a homestead exemption claimed, that drops to $5,698 — saving $1,323 per year. That's $475 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%$3,485
Round RockCity0.3720%$1,452
Williamson CountyCounty0.3694%$1,442
Austin Community Collegespecial0.1034%$403
Williamson County FM/RdCounty0.0443%$173
Upper Brushy Creek WCIDWater0.0170%$66
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,021

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $400,384 would pay approximately $2,499 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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