Harris Value

21807 Alta Peak Way, Katy, TX 77449

2,928 sqft, built 2011 Appraised at $339,386 for 2026.

Harris County account 1285720040007

Appraised value
$339,386
Tax year 2026 · after any cap, before exemptions
Living area
2,928 sqft
$116 per sqft
Year built
2011
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 5.3% from $358,484 in 2025 to $339,386 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.

  • 21831 Alta Peak Way, Katy, TX 77449
    2,928 sqft | $115/sqft | built 2011 | Similar size (2,928 vs 2,928 sqft); Built same year (2011); Similar lot size (6,047 vs 6,439 sqft)
    $337,748
  • 4534 Wheeler Peak Way, Katy, TX 77449
    3,040 sqft | $116/sqft | built 2013 | Similar size (3,040 vs 2,928 sqft); Similar age (2013 vs 2011); Similar lot size (6,468 vs 6,439 sqft)
    $353,966
  • 21623 Mid Peak Way, Katy, TX 77449
    2,826 sqft | $113/sqft | built 2009 | Similar size (2,826 vs 2,928 sqft); Similar age (2009 vs 2011); Similar lot size (6,339 vs 6,439 sqft)
    $320,151
  • 21606 Alta Peak Way, Katy, TX 77449
    2,916 sqft | $116/sqft | built 2013 | Similar size (2,916 vs 2,928 sqft); Similar age (2013 vs 2011); Similar lot size (6,006 vs 6,439 sqft)
    $338,536
  • 21723 Crest Peak Way, Katy, TX 77449
    2,826 sqft | $111/sqft | built 2008 | Similar size (2,826 vs 2,928 sqft); Similar age (2008 vs 2011); Similar lot size (6,360 vs 6,439 sqft)
    $312,727

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 | 7% size difference (2,721 sqft); Moderate age difference (7 years older); 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 (10 years older); Sold after the valuation date
    $324,990
  • 18606 Balsam Creek Ln, Katy, TX 77449
    July-28-2026 | 2,712 sqft | $110/sqft | built 2014 | 7% size difference (2,712 sqft); Similar age (2014); Sold after the valuation date
    $299,000
  • 19806 Millstone Ridge Ln, Katy, TX 77449
    September-29-2026 | 2,433 sqft | $115/sqft | built 2005 | Moderate age difference (6 years older); Sold after the valuation date
    $279,000
  • 6950 Sterling Meadow Dr, Katy, TX 77449
    June-12-2026 | 2,852 sqft | $104/sqft | built 2003 | Similar size (2,852 sqft); Moderate age difference (8 years older); Sold after the valuation date
    $298,000

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.