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605 LILAC DR E, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed1 bath1,397 sqftBuilt 1963

Property at a Glance

This home is estimated between $283,805 and $348,151, with a best estimate of $311,608. 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

$283,805 $348,151
Best Estimate
$311,608
WCAD Value
$283,492
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 $283,805 and $348,151. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

603 KAROLYN DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,471 sqft Built 1975
Raw Value $322,684
Adjusted Value $311,608

Adjusted -$16,082 for 74 sqft less living space and +$5,006 for being newer. Net adjustment: -$11,076.

608 E OAK DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,576 sqft Built 1964
Raw Value $322,288
Adjusted Value $283,805

Adjusted -$38,900 for 179 sqft less living space and +$417 for being newer. Net adjustment: -$38,483.

600 OAK DR E, ROUND ROCK, TX 78664
0.00 mi 99% similar Same subdivision
3 bed 2 bath 1,264 sqft Built 1977
Raw Value $307,816
Adjusted Value $342,561

Adjusted +$28,904 for 133 sqft more living space and +$5,841 for being newer. Net adjustment: +$34,745.

607 OAK DR E, ROUND ROCK, TX 78664
0.00 mi 98% similar Same subdivision
2 bed 2 bath 1,302 sqft Built 1969
Raw Value $325,002
Adjusted Value $348,151

Adjusted +$20,646 for 95 sqft more living space and +$2,503 for being newer. Net adjustment: +$23,149.

603 ANDOVER DR, ROUND ROCK, TX 78664
0.00 mi 98% similar Same subdivision
3 bed 2 bath 1,571 sqft Built 1978
Raw Value $339,246
Adjusted Value $307,690

Adjusted -$37,814 for 174 sqft less living space and +$6,258 for being newer. Net adjustment: -$31,556.

The Neighborhood

This home is valued 19.9% 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

below average
340 Properties
$353,946 Median Value
-4.4% YoY Change
6% Have Pool
87% Have Garage
This Home
$283,492
Median
$353,946

This home is -19.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,101 across all districts. With a homestead exemption claimed, that drops to $3,798 — saving $1,303 per year. That's $317 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%$2,532
Round RockCity0.3720%$1,055
Williamson CountyCounty0.3694%$1,047
Austin Community Collegespecial0.1034%$293
Williamson County FM/RdCounty0.0443%$126
Upper Brushy Creek WCIDWater0.0170%$48
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,101

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $311,608 would pay approximately $1,945 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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