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1800 ROBB LN, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,569 sqftBuilt 1976

Property at a Glance

This home is estimated between $271,243 and $353,642, with a best estimate of $291,029. 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

$271,243 $353,642
Best Estimate
$291,029
WCAD Value
$359,182
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 $271,243 and $353,642. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3 bed 2 bath 1,595 sqft Built 1979
Raw Value $295,427
Adjusted Value $291,029

Adjusted -$5,650 for 26 sqft less living space and +$1,252 for being newer. Net adjustment: -$4,398.

1807 ROBB LN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,517 sqft Built 1978
Raw Value $341,507
Adjusted Value $353,642

Adjusted +$11,301 for 52 sqft more living space and +$834 for being newer. Net adjustment: +$12,135.

1803 ROBB LN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,255 sqft Built 1978
Raw Value $424,324
Adjusted Value $276,076

Adjusted -$149,082 for 686 sqft less living space and +$834 for being newer. Net adjustment: -$148,248.

1809 ROBB LN, ROUND ROCK, TX 78664
0.00 mi 99% similar Same subdivision
4 bed 2 bath 2,354 sqft Built 1977
Raw Value $441,423
Adjusted Value $271,243

Adjusted -$170,597 for 785 sqft less living space and +$417 for being newer. Net adjustment: -$170,180.

3 bed 2 bath 1,448 sqft Built 1985
Raw Value $281,103
Adjusted Value $311,154

Adjusted +$26,296 for 121 sqft more living space and +$3,755 for being newer. Net adjustment: +$30,051.

The Neighborhood

This home is valued 1.5% 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
$359,182
Median
$353,946

This home is +1.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,463 across all districts. With a homestead exemption claimed, that drops to $5,146 — saving $1,317 per year. That's $429 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%$3,208
Round RockCity0.3720%$1,336
Williamson CountyCounty0.3694%$1,327
Austin Community Collegespecial0.1034%$371
Williamson County FM/RdCounty0.0443%$159
Upper Brushy Creek WCIDWater0.0170%$61
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,463

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $291,029 would pay approximately $1,817 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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