Travis Value

421 Island Oak Dr, Austin, TX 78748

3 bed / 2 bath, 2,071 sqft, built 2012 Appraised at $462,176 for 2026.

Travis County account 000000708559

Appraised value
$462,176
Tax year 2026 · after any cap, before exemptions
Market value
$480,088
Living area
2,071 sqft
$223 per sqft
Year built
2012
Homestead
Yes
Owner-occupied exemption on file

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 78748 and TCAD Appraisal Area I6000 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 TCAD records highlight what may be worth checking before you file.

  • Assessment changeThe appraised value increased 10.0% from $420,160 in 2025 to $462,176 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 $17,912 above the appraised value used on this page.
  • Nearby comparison areaThis page starts the equity review with public records for ZIP 78748.
  • Neighborhood value signalAmong 229 residential records in the same neighborhood, the average appraised value is about $187 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +8.6% on average.

Comparable assessments

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

  • 228 Camperdown Elm Dr, Austin, TX 78748
    2,071 sqft | $233/sqft | built 2011 | Similar size (2,071 vs 2,071 sqft); Similar age (2011 vs 2012); Similar lot size (9,234 vs 9,326 sqft)
    $483,000
  • 204 Kissing Oak Dr, TX 78748
    1,924 sqft | $229/sqft | built 2010 | 7% smaller (1,924 vs 2,071 sqft); Similar age (2010 vs 2012); Similar lot size (8,860 vs 9,326 sqft)
    $439,794
  • 417 Wye Oak St, Austin, TX 78748
    2,257 sqft | $213/sqft | built 2012 | 9% larger (2,257 vs 2,071 sqft); Built same year (2012); Similar lot size (9,552 vs 9,326 sqft)
    $479,987
  • 10301 Grizzly Oak Dr, Austin, TX 78748
    2,252 sqft | $210/sqft | built 2008 | 9% larger (2,252 vs 2,071 sqft); Similar age (2008 vs 2012); Similar lot size (9,400 vs 9,326 sqft)
    $471,920
  • 308 Island Oak Dr, Austin, TX 78748
    2,071 sqft | $206/sqft | built 2012 | Similar size (2,071 vs 2,071 sqft); Built same year (2012); Lot 18% smaller (7,618 vs 9,326 sqft)
    $427,283

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.

  • 11212 Copper Spring Dr Manchaca, TX 78748
    August-13-2026 | 2,064 sqft | $211/sqft | built 2021 | Similar size (2,064 sqft); Moderate age difference (9 years newer); Sold after the valuation date
    $435,000
  • 1409 Kendalia St, Austin, TX 78748
    August-10-2026 | 2,163 sqft | $185/sqft | built 2007 | Similar size (2,163 sqft); Moderate age difference (5 years older); Sold after the valuation date
    $400,000
  • 2305 Sully Creek Dr, Austin, TX 78748
    July-29-2026 | 2,107 sqft | $261/sqft | built 2008 | Similar size (2,107 sqft); Moderate age difference (4 years older); Sold after the valuation date
    $550,000
  • 10704 Harley Ave, Austin, TX 78748
    August-14-2026 | 2,190 sqft | $210/sqft | built 2007 | 6% size difference (2,190 sqft); Moderate age difference (5 years older); Sold after the valuation date
    $460,000
  • 2933 Fleet Dr, Austin, TX 78748
    August-3-2026 | 1,945 sqft | $253/sqft | built 2005 | 6% size difference (1,945 sqft); Moderate age difference (7 years older); Sold after the valuation date
    $492,000

Public appraisal comparison for 2026. Prepared . Appraisal source: Travis 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.