Travis Value

4518 Sidereal Dr, TX 78727

3 bathrooms, 2,021 sqft, built 1984 Appraised at $518,761 for 2026.

Travis County account 000000270391

Appraised value
$518,761
Tax year 2026 · after any cap, before exemptions
Living area
2,021 sqft
$257 per sqft
Year built
1984
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 78727 and TCAD Appraisal Area V0210 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 2.5% from $506,344 in 2025 to $518,761 in 2026.
  • Appraised value per square footThe current public record shows about $257 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for ZIP 78727.
  • Neighborhood value signalAmong 1,164 residential records in the same neighborhood, the average appraised value is about $259 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -4.3% on average.

Comparable assessments

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

  • 4400 Adelphi Ln, Austin, TX 78727
    1,984 sqft | $275/sqft | built 1982 | Similar size (1,984 vs 2,021 sqft); Similar age (1982 vs 1984); Similar lot size (14,736 vs 14,832 sqft)
    $546,138
  • 4613 Ganymede Dr, Austin, TX 78727
    1,978 sqft | $256/sqft | built 1983 | Similar size (1,978 vs 2,021 sqft); Similar age (1983 vs 1984); Similar lot size (14,440 vs 14,832 sqft)
    $506,164
  • 12606 Terra Nova Ln, Austin, TX 78727
    2,021 sqft | $241/sqft | built 1984 | Similar size (2,021 vs 2,021 sqft); Built same year (1984); Lot 12% larger (16,670 vs 14,832 sqft)
    $487,999
  • 12400 Adelphi Cove, TX 78727
    2,063 sqft | $246/sqft | built 1981 | Similar size (2,063 vs 2,021 sqft); Similar age (1981 vs 1984); Similar lot size (14,239 vs 14,832 sqft)
    $507,252
  • 12300 Meuse Cv, TX 78727
    2,003 sqft | $250/sqft | built 1983 | Similar size (2,003 vs 2,021 sqft); Similar age (1983 vs 1984); Similar lot size (13,451 vs 14,832 sqft)
    $501,276

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.

  • 13006 Council Bluff Dr, Austin, TX 78727
    September-24-2026 | 2,046 sqft | $219/sqft | built 1979 | Similar size (2,046 sqft); Moderate age difference (5 years older); Sold after the valuation date
    $449,000
  • 4500 Sidereal Dr, Austin, TX 78727
    August-31-2026 | 1,951 sqft | $269/sqft | built 1984 | Similar size (1,951 sqft); Similar age (1984); Sold after the valuation date
    $524,900
  • 4103 Oak Creek Dr, Austin, TX 78727
    August-3-2026 | 1,971 sqft | $330/sqft | built 1979 | Similar size (1,971 sqft); Moderate age difference (5 years older); Sold after the valuation date
    $650,000
  • 12607 Terra Nova Ln, Austin, TX 78727
    September-1-2026 | 2,217 sqft | $259/sqft | built 1984 | 10% size difference (2,217 sqft); Similar age (1984); Sold after the valuation date
    $575,000
  • 12302 Cabana Ln, Austin, TX 78727
    August-26-2026 | 1,898 sqft | $337/sqft | built 1983 | 6% size difference (1,898 sqft); Similar age (1983); Sold after the valuation date
    $640,000

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.