3900 BONNIE LN, ROUND ROCK, TX 78665
ROUND ROCK, 78665 — williamson County
Property at a Glance
This home is estimated between $333,527 and $445,660, with a best estimate of $437,264. That places the property above the R409599G - STONEY BROOK - ALL SECTIONS median of $328,056, in a neighborhood that declined 4.7% over the past year.
Estimated Value Range
$437,264
$466,894
Based on 5 comparable properties(4 in the same subdivision)
Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $333,527 and $445,660. More comparables in the same subdivision would strengthen this estimate.
Comparable Properties (5)
Adjusted +$29,406 for 127 sqft more living space and +$20,556 for being newer. Net adjustment: +$49,962.
Adjusted +$28,249 for 122 sqft more living space and +$20,556 for being newer. Net adjustment: +$48,805.
Adjusted -$2,779 for 12 sqft less living space and +$20,556 for being newer. Net adjustment: +$17,777.
Adjusted -$15,514 for 67 sqft less living space and -$12,334 for being older. Net adjustment: -$27,848.
Adjusted -$2,779 for 12 sqft less living space and +$16,445 for being newer. Net adjustment: +$13,666.
The Neighborhood
This home is valued 42.3% above the R409599G - STONEY BROOK - ALL SECTIONS median of $328,056. With 197 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 4.7% over the past year.
R409599G - STONEY BROOK - ALL SECTIONS
above averageThis home is +42.3% above the subdivision median.
Tax Analysis
The estimated annual property tax is $8,401 across all districts. With a homestead exemption claimed, that drops to $7,064 — saving $1,337 per year. That's $589 per month a buyer should budget. The assessed value increased +5.2% vs the subdivision average of -4.7%. This above-average increase gives a protest opportunity score of 55 out of 100 — it may be worth challenging the appraisal.
Tax Districts
| District | Type | Rate | Annual Amount |
|---|---|---|---|
| Round Rock ISD | School | 0.8931% | $4,170 |
| Round Rock | City | 0.3720% | $1,737 |
| Williamson County | County | 0.3694% | $1,725 |
| Austin Community College | special | 0.1034% | $483 |
| Williamson County FM/Rd | County | 0.0443% | $207 |
| Upper Brushy Creek WCID | Water | 0.0170% | $79 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.7993% | $8,401 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $437,264 would pay approximately $2,729 per month (principal and interest only, excluding taxes and insurance).