Harris Value

21834 Alta Peak Way, Katy, TX 77449

2,796 sqft, built 2009 Appraised at $324,484 for 2026.

Harris County account 1285720030003

Appraised value
$324,484
Tax year 2026 · after any cap, before exemptions
Living area
2,796 sqft
$116 per sqft
Year built
2009
Average quality

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 77449, HCAD Appraisal Area 2847.07, and Katy 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 delivered, 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 HCAD records highlight what may be worth checking before you file.

  • Assessment changeThe appraised value decreased 4.1% from $338,320 in 2025 to $324,484 in 2026.
  • Appraised value per square footThe current public record shows about $116 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for ZIP 77449.
  • Neighborhood value signalAmong 135 residential records in the same neighborhood, the average appraised value is about $126 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -1.4% on average.

Comparable assessments

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

  • 21635 Alta Peak Way, Katy, TX 77449
    2,803 sqft | $118/sqft | built 2012 | Similar size (2,803 vs 2,796 sqft); Similar age (2012 vs 2009); Similar lot size (5,500 vs 5,778 sqft)
    $331,479
  • 21731 Mid Peak Way, Katy, TX 77449
    2,684 sqft | $118/sqft | built 2010 | Similar size (2,684 vs 2,796 sqft); Similar age (2010 vs 2009); Similar lot size (5,841 vs 5,778 sqft)
    $317,890
  • 21634 Mid Peak Way, Katy, TX 77449
    2,812 sqft | $116/sqft | built 2012 | Similar size (2,812 vs 2,796 sqft); Similar age (2012 vs 2009); Similar lot size (5,500 vs 5,778 sqft)
    $324,930
  • 21630 Mid Peak Way, Katy, TX 77449
    2,797 sqft | $118/sqft | built 2013 | Similar size (2,797 vs 2,796 sqft); Similar age (2013 vs 2009); Similar lot size (5,500 vs 5,778 sqft)
    $329,059
  • 4415 Crest Peak Ct, Katy, TX 77449
    2,928 sqft | $113/sqft | built 2009 | Similar size (2,928 vs 2,796 sqft); Built same year (2009); Similar lot size (5,863 vs 5,778 sqft)
    $330,649

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.

  • 4035 Mt Whitney Way, Katy, TX 77449
    September-4-2026 | 2,721 sqft | $110/sqft | built 2004 | Similar size (2,721 sqft); Moderate age difference (5 years older); Sold after the valuation date
    $299,000
  • 5207 Appleton Meadow Trce, Katy, TX 77449
    September-30-2026 | 2,428 sqft | $124/sqft | built 2016 | 13% size difference (2,428 sqft); Moderate age difference (7 years newer); Sold after the valuation date
    $299,999
  • 21315 Slate Crossing Ln, Katy, TX 77449
    September-17-2026 | 2,520 sqft | $119/sqft | built 2012 | 10% size difference (2,520 sqft); Similar age (2012); Sold after the valuation date
    $299,000
  • 19506 Tuscola Ln, Katy, TX 77449
    June-30-2026 | 2,872 sqft | $113/sqft | built 2001 | Similar size (2,872 sqft); Moderate age difference (8 years older); Sold after the valuation date
    $324,990
  • 20823 Morgan Knoll Ln, Katy, TX 77449
    July-8-2026 | 2,799 sqft | $107/sqft | built 2013 | Similar size (2,799 sqft); Moderate age difference (4 years newer); Sold after the valuation date
    $299,999

Public appraisal comparison for 2026. Prepared . Appraisal source: Harris County 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.