Williamson Value

13187 Mill Stone Dr, Austin, TX 78729

2 bathrooms, 1,598 sqft, built 1982, in R350481H - Anderson Mill Village Appraised at $344,210 for 2026.

Williamson County account 112469

Appraised value
$344,210
Tax year 2026 · after any cap, before exemptions
Living area
1,598 sqft
$215 per sqft
Year built
1982

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 78729 and Anderson Mill Village 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 7.3% from $371,256 in 2025 to $344,210 in 2026.
  • Appraised value per square footThe current public record shows about $215 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the R350481H - Anderson Mill Village neighborhood and ZIP 78729.
  • Neighborhood value signalAmong 246 residential records in the same neighborhood, the average appraised value is about $235 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -5.4% 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.

  • 8924 Black Oak St, Austin, TX 78729
    August-28-2026 | 1,587 sqft | $268/sqft | built 1983 | Similar size (1,587 sqft); Similar age (1983); Sold after the valuation date
    $425,000
  • 8112 Chainfire Cv, Austin, TX 78729
    September-18-2026 | 1,700 sqft | $253/sqft | built 1985 | 6% size difference (1,700 sqft); Similar age (1985); Sold after the valuation date
    $430,000
  • 12806 Blackfoot Trl, Austin, TX 78729
    August-28-2026 | 1,684 sqft | $267/sqft | built 1987 | 5% size difference (1,684 sqft); Moderate age difference (5 years newer); Sold after the valuation date
    $449,000
  • 7020 Riverton Dr, Austin, TX 78729
    July-31-2026 | 1,518 sqft | $235/sqft | built 1986 | 5% size difference (1,518 sqft); Moderate age difference (4 years newer); Sold after the valuation date
    $357,000
  • 12907 Springvale Dr, Austin, TX 78729
    September-8-2026 | 1,704 sqft | $275/sqft | built 1974 | 7% size difference (1,704 sqft); Moderate age difference (8 years older); Sold after the valuation date
    $469,000

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.