509 KAROLYN DR, ROUND ROCK, TX 78664
ROUND ROCK, 78664 — williamson County
Property at a Glance
This home is estimated between $293,911 and $360,364, with a best estimate of $329,919. 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
$329,919
$382,000
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 $293,911 and $360,364. More comparables in the same subdivision would strengthen this estimate.
Comparable Properties (5)
Adjusted -$81,278 for 374 sqft less living space and -$4,172 for being older. Net adjustment: -$85,450.
Adjusted -$54,765 for 252 sqft less living space and -$6,258 for being older. Net adjustment: -$61,023.
Adjusted +$34,337 for 158 sqft more living space. Net adjustment: +$34,337.
Adjusted -$43,030 for 198 sqft less living space and -$834 for being older. Net adjustment: -$43,864.
Adjusted +$40,204 for 185 sqft more living space and -$6,258 for being older. Net adjustment: +$33,946.
The Neighborhood
This home is valued 7.9% 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
typicalThis home is +7.9% above the subdivision median.
Tax Analysis
The estimated annual property tax is $6,873 across all districts. With a homestead exemption claimed, that drops to $5,552 — saving $1,321 per year. That's $463 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
| District | Type | Rate | Annual Amount |
|---|---|---|---|
| Round Rock ISD | School | 0.8931% | $3,412 |
| Round Rock | City | 0.3720% | $1,421 |
| Williamson County | County | 0.3694% | $1,411 |
| Austin Community College | special | 0.1034% | $395 |
| Williamson County FM/Rd | County | 0.0443% | $169 |
| Upper Brushy Creek WCID | Water | 0.0170% | $65 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.7993% | $6,873 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $329,919 would pay approximately $2,059 per month (principal and interest only, excluding taxes and insurance).