Travis Value

4005 Island Knoll Dr, Austin, TX 78746

4 bathrooms, 4,579 sqft, built 1999, in K & J P Subd Rplt Appraised at $4,359,455 for 2026.

Travis County account 000000374860

Appraised value
$4,359,455
Tax year 2026 · after any cap, before exemptions
Market value
$5,501,231
Living area
4,579 sqft
$952 per sqft
Year built
1999

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 78746 and K & J P 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 decreased 3.5% from $4,516,705 in 2025 to $4,359,455 in 2026.
  • Appraised value per square footThe current public record shows about $952 per square foot before any comparable-property adjustments.
  • Market/appraised spreadThe county market value is $1,141,776 above the appraised value used on this page.
  • Nearby comparison areaThis page starts the equity review with public records for the K & J P Subd Rplt neighborhood and ZIP 78746.
  • Neighborhood value signalAmong 240 residential records in the same neighborhood, the average appraised value is about $915 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.

  • 711 Windsong Trl, Austin, TX 78746
    4,505 sqft | $913/sqft | built 1998 | Similar size (4,505 vs 4,579 sqft); Similar age (1998 vs 1999); Similar lot size (55,626 vs 51,727 sqft)
    $4,114,000
  • 703 Rocky River Rd West Lake, TX 78746
    4,765 sqft | $811/sqft | built 2007 | Similar size (4,765 vs 4,579 sqft); Similar lot size (48,743 vs 51,727 sqft); Same neighborhood
    $3,862,091
  • 705 Split Rail Trl, TX 78746
    4,360 sqft | $621/sqft | built 1997 | Similar size (4,360 vs 4,579 sqft); Similar age (1997 vs 1999); Similar lot size (56,192 vs 51,727 sqft)
    $2,708,786
  • 1516 Wild Cat Hollow Rd, TX 78746
    4,041 sqft | $902/sqft | built 2002 | 12% smaller (4,041 vs 4,579 sqft); Similar age (2002 vs 1999); Similar lot size (52,707 vs 51,727 sqft)
    $3,646,771
  • 2104 Lakeshore Dr, Austin, TX 78746
    4,750 sqft | $733/sqft | built 1993 | Similar size (4,750 vs 4,579 sqft); Similar lot size (46,609 vs 51,727 sqft); Same neighborhood
    $3,479,758

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.

  • 4701 Via Media, Austin, TX 78746
    September-18-2026 | 5,107 sqft | $763/sqft | built 1996 | 12% size difference (5,107 sqft); Similar age (1996); Sold after the valuation date
    $3,897,000
  • 6702 Vireo Cv, Austin, TX 78746
    September-29-2026 | 4,058 sqft | $615/sqft | built 1994 | 11% size difference (4,058 sqft); Moderate age difference (5 years older); Sold after the valuation date
    $2,495,000
  • 18 Ehrlich Rd, Austin, TX 78746
    August-21-2026 | 5,004 sqft | $590/sqft | built 1987 | 9% size difference (5,004 sqft); Sold after the valuation date
    $2,950,000
  • 2417 Never Bend Cv, Austin, TX 78746
    October-5-2026 | 5,150 sqft | $481/sqft | built 1999 | 12% size difference (5,150 sqft); Similar age (1999); Sold after the valuation date
    $2,475,000
  • 4110 Bunny Run #3, Austin, TX 78746
    July-29-2026 | 4,507 sqft | $487/sqft | built 2001 | Similar size (4,507 sqft); Similar age (2001); Sold after the valuation date
    $2,195,000

Public appraisal comparison for 2026. Prepared . Appraisal source: Travis Central Appraisal District. Sales data checked in this snapshot: . Matches consider available size, age, location and property characteristics. How comparisons work.