Williamson Value

13 Old Oaks Dr, Round Rock, TX 78665

3 bathrooms, 3,713 sqft, built 1980, in R575583D - Rr Rual Sub 122 & Gattis School Rd Area Appraised at $829,532 for 2026.

Williamson County account 125419

Appraised value
$829,532
Tax year 2026 · after any cap, before exemptions
Market value
$849,433
Living area
3,713 sqft
$223 per sqft
Year built
1980

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, Rr Rual Sub 122 & Gattis School Rd Area, 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 increased 10.0% from $754,120 in 2025 to $829,532 in 2026.
  • Appraised value per square footThe current public record shows about $223 per square foot before any comparable-property adjustments.
  • Market/appraised spreadThe county market value is $19,901 above the appraised value used on this page.
  • Nearby comparison areaThis page starts the equity review with public records for the R575583D - Rr Rual Sub 122 & Gattis School Rd Area neighborhood and ZIP 78665.
  • Neighborhood value signalAmong 191 residential records in the same neighborhood, the average appraised value is about $294 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +6.9% on average.

Comparable assessments

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

  • 836 Red Bud Ln, Round Rock, TX 78665
    3,851 sqft | $228/sqft | built 1978 | Similar size (3,851 vs 3,713 sqft); Similar age (1978 vs 1980); Similar lot size (40,380 vs 43,560 sqft)
    $878,168
  • 7 Red Bud Trl, Round Rock, TX 78665
    4,008 sqft | $242/sqft | built 1983 | 8% larger (4,008 vs 3,713 sqft); Similar age (1983 vs 1980); Similar lot size (42,601 vs 43,560 sqft)
    $971,435
  • 2 Old Oaks Dr, Round Rock, TX 78665
    3,348 sqft | $220/sqft | built 1978 | 10% smaller (3,348 vs 3,713 sqft); Similar age (1978 vs 1980); Similar lot size (40,388 vs 43,560 sqft)
    $735,008
  • 10 Country Dr, Round Rock, TX 78664
    3,305 sqft | $233/sqft | built 1983 | 11% smaller (3,305 vs 3,713 sqft); Similar age (1983 vs 1980); Similar lot size (44,431 vs 43,560 sqft)
    $769,431
  • 14 Shady Rock Ct, Round Rock, TX 78665
    3,340 sqft | $230/sqft | built 1978 | 10% smaller (3,340 vs 3,713 sqft); Similar age (1978 vs 1980); Similar lot size (42,514 vs 43,560 sqft)
    $766,743

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.

Public appraisal comparison for 2026. Prepared . Appraisal source: Williamson Central Appraisal District. Sales data checked in this snapshot: . Showing the last prepared sales evidence while recent sales are refreshed. Matches consider available size, age, location and property characteristics. How comparisons work.