Williamson Value

15400 Fernhill Dr, Austin, TX 78717

3 bathrooms, 3,180 sqft, built 2006, in R251501D - Avery Ranch South Appraised at $734,643 for 2026.

Williamson County account 271339

Appraised value
$734,643
Tax year 2026 · after any cap, before exemptions
Living area
3,180 sqft
$231 per sqft
Year built
2006

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 78717, Avery Ranch South, and Cedar Park 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 3.6% from $762,132 in 2025 to $734,643 in 2026.
  • Appraised value per square footThe current public record shows about $231 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the R251501D - Avery Ranch South neighborhood and ZIP 78717.
  • Neighborhood value signalAmong 633 residential records in the same neighborhood, the average appraised value is about $238 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -2.9% 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.

  • 15300 Interlachen Dr, Austin, TX 78717
    September-14-2026 | 3,166 sqft | $201/sqft | built 2004 | Similar size (3,166 sqft); Similar age (2004); Sold after the valuation date
    $634,900
  • 15613 Echo Hills Dr, Austin, TX 78717
    September-25-2026 | 3,318 sqft | $219/sqft | built 2006 | Similar size (3,318 sqft); Similar age (2006); Sold after the valuation date
    $725,000
  • 16429 Broadbay Dr, Austin, TX 78717
    September-16-2026 | 3,080 sqft | $260/sqft | built 2007 | Similar size (3,080 sqft); Similar age (2007); Sold after the valuation date
    $800,000
  • 15321 Fernhill Dr, Austin, TX 78717
    July-17-2026 | 3,166 sqft | $249/sqft | built 2006 | Similar size (3,166 sqft); Similar age (2006); Sold after the valuation date
    $789,000
  • 14829 Irondale Dr, Austin, TX 78717
    August-31-2026 | 3,153 sqft | $266/sqft | built 1998 | Similar size (3,153 sqft); Moderate age difference (8 years older); Sold after the valuation date
    $839,000

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.