Williamson Value

4333 Contrail Ln, Round Rock, TX 78665

5 bed / 4 bath, 2,854 sqft, built 2024, in G507521B - Uni Heights Appraised at $528,872 for 2026.

Williamson County account 463499

Appraised value
$528,872
Tax year 2026 · after any cap, before exemptions
Living area
2,854 sqft
$185 per sqft
Year built
2024

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 78665, Uni Heights, 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 7.8% from $573,880 in 2025 to $528,872 in 2026.
  • Appraised value per square footThe current public record shows about $185 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the G507521B - Uni Heights neighborhood and ZIP 78665.
  • Neighborhood value signalAmong 159 residential records in the same neighborhood, the average appraised value is about $193 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +46.3% 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.

  • 4511 Alfano Loop, Round Rock, TX 78665
    June-30-2026 | 2,579 sqft | $159/sqft | built 2024 | 10% size difference (2,579 sqft); Similar age (2024); Sold after the valuation date
    $410,000
  • 2301 Palazzo Ct, Round Rock, TX 78665
    September-29-2026 | 2,890 sqft | $190/sqft | built 2019 | Similar size (2,890 sqft); Moderate age difference (5 years older); Sold after the valuation date
    $549,900
  • 3113 Hidalgo Loop, Round Rock, TX 78665
    September-2-2026 | 2,647 sqft | $189/sqft | built 2018 | 7% size difference (2,647 sqft); Moderate age difference (6 years older); Sold after the valuation date
    $500,000
  • 8021 Gato Ln, Round Rock, TX 78665
    September-16-2026 | 2,618 sqft | $147/sqft | built 2015 | 8% size difference (2,618 sqft); Moderate age difference (9 years older); Sold after the valuation date
    $385,000
  • 5861 Bianca Dr, Round Rock, TX 78665
    September-18-2026 | 3,237 sqft | $150/sqft | built 2020 | 13% size difference (3,237 sqft); Moderate age difference (4 years older); Sold after the valuation date
    $484,900

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.