Williamson Value

1817 Thompson Trl, Round Rock, TX 78664

2 bathrooms, 2,117 sqft, built 2005, in R525503F - Turtle Creek Village Appraised at $348,706 for 2026.

Williamson County account 245027

Appraised value
$348,706
Tax year 2026 · after any cap, before exemptions
Living area
2,117 sqft
$165 per sqft
Year built
2005

Compare this assessment

Start with the county value and property facts, then review appraisal comps, recent sales, and prior-year changes to decide whether the assessment is worth challenging. The comps on this page are free to review; email sign-in is only used to save a printable report.

For nearby context, browse ZIP 78664, Turtle Creek Village, and Round Rock assessment pages.

Protest deadline

The 2026 protest deadline was . The 2027 protest deadline is . 2027 notices usually arrive in April.

Deadline rule: May 15, or 30 days after your notice of appraised value is mailed, whichever is later. A deadline on a weekend or holiday moves to the next business day. Evidence is reviewed by the Appraisal Review Board (ARB). Dates checked against the official source.

Assessment snapshot

These public WCAD records highlight what may be worth checking before you file.

  • Assessment changeThe appraised value decreased 11.0% from $391,667 in 2025 to $348,706 in 2026.
  • Appraised value per square footThe current public record shows about $165 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the R525503F - Turtle Creek Village neighborhood and ZIP 78664.
  • Neighborhood value signalAmong 424 residential records in the same neighborhood, the average appraised value is about $204 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -7.8% on average.

Comparable assessments

Similar public appraisal records selected for this property's equity comparison.

Recent comparable sales

Sales selected by similarity to the subject property. Texas is a non-disclosure state, so these MLS-listed sales are supplemental evidence.

  • 1601 Breezy Cv, Round Rock, TX 78664
    September-11-2026 | 2,161 sqft | $199/sqft | built 2005 | Similar size (2,161 sqft); Similar age (2005); Sold after the valuation date
    $429,900
  • 1958 Mexia Dr, Round Rock, TX 78664
    September-4-2026 | 2,104 sqft | $190/sqft | built 2017 | Similar size (2,104 sqft); Sold after the valuation date
    $399,900
  • 101 Rock Chalk Ct, Round Rock, TX 78664
    September-2-2026 | 2,067 sqft | $230/sqft | built 1996 | Similar size (2,067 sqft); Moderate age difference (9 years older); Sold after the valuation date
    $474,999
  • 104 Adelfa Dr, Round Rock, TX 78664
    September-15-2026 | 2,074 sqft | $265/sqft | built 1996 | Similar size (2,074 sqft); Moderate age difference (9 years older); Sold after the valuation date
    $550,000
  • 1922 Tawakoni Dr, Round Rock, TX 78664
    August-20-2026 | 2,075 sqft | $200/sqft | built 2015 | Similar size (2,075 sqft); Moderate age difference (10 years newer); Sold after the valuation date
    $415,000

Public appraisal comparison for 2026. Prepared . Appraisal source: Williamson Central Appraisal District. Sales data checked in this snapshot: . Matches consider available size, age, location and property characteristics. How comparisons work.