Williamson Value

15304 Interlachen Dr, Austin, TX 78717

3 bathrooms, 2,689 sqft, built 2005, in L572601A - Avery Estates & Golf Club @ Avery Ranch Appraised at $688,401 for 2026.

Williamson County account 240436

Appraised value
$688,401
Tax year 2026 · after any cap, before exemptions
Market value
$787,544
Living area
2,689 sqft
$256 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 78717, Avery Estates & Golf Club @ Avery Ranch, 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 increased 10.0% from $625,819 in 2025 to $688,401 in 2026.
  • Appraised value per square footThe current public record shows about $256 per square foot before any comparable-property adjustments.
  • Market/appraised spreadThe county market value is $99,143 above the appraised value used on this page.
  • Nearby comparison areaThis page starts the equity review with public records for the L572601A - Avery Estates & Golf Club @ Avery Ranch neighborhood and ZIP 78717.
  • Neighborhood value signalAmong 146 residential records in the same neighborhood, the average appraised value is about $276 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +9.7% 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.

  • 11709 Running Brush Cv, Austin, TX 78717
    September-25-2026 | 2,737 sqft | $228/sqft | built 2008 | Similar size (2,737 sqft); Similar age (2008); Sold after the valuation date
    $625,000
  • 9613 Indina Hills Dr, Austin, TX 78717
    August-14-2026 | 2,717 sqft | $230/sqft | built 2005 | Similar size (2,717 sqft); Similar age (2005); Sold after the valuation date
    $625,000
  • 15701 Jeffs Ln, Austin, TX 78717
    September-21-2026 | 2,814 sqft | $261/sqft | built 2014 | Similar size (2,814 sqft); Moderate age difference (9 years newer); Sold after the valuation date
    $735,000
  • 14936 Thatcher Dr, Austin, TX 78717
    August-31-2026 | 2,535 sqft | $276/sqft | built 2000 | 6% size difference (2,535 sqft); Moderate age difference (5 years older); Sold after the valuation date
    $699,900
  • 9309 Slate Creek Trl, Austin, TX 78717
    August-5-2026 | 2,658 sqft | $225/sqft | built 1995 | Similar size (2,658 sqft); Moderate age difference (10 years older); Sold after the valuation date
    $597,500

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.