Harris Value

21818 Alta Peak Way, Katy, TX 77449

2,148 sqft, built 2011 Appraised at $285,697 for 2026.

Harris County account 1285720020032

Appraised value
$285,697
Tax year 2026 · after any cap, before exemptions
Living area
2,148 sqft
$133 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 increased 0.9% from $283,067 in 2025 to $285,697 in 2026.
  • Appraised value per square footThe current public record shows about $133 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.

  • 21719 Crest Peak Way, Katy, TX 77449
    2,150 sqft | $128/sqft | built 2009 | Similar size (2,150 vs 2,148 sqft); Similar age (2009 vs 2011); Similar lot size (6,360 vs 6,464 sqft)
    $275,000
  • 21731 Alta Peak Way, Katy, TX 77449
    2,081 sqft | $134/sqft | built 2011 | Similar size (2,081 vs 2,148 sqft); Built same year (2011); Similar lot size (6,438 vs 6,464 sqft)
    $279,641
  • 4602 Alta Peak Ct, Katy, TX 77449
    2,111 sqft | $131/sqft | built 2010 | Similar size (2,111 vs 2,148 sqft); Similar age (2010 vs 2011); Similar lot size (6,344 vs 6,464 sqft)
    $276,717
  • 21723 Alta Peak Way, Katy, TX 77449
    2,209 sqft | $143/sqft | built 2012 | Similar size (2,209 vs 2,148 sqft); Similar age (2012 vs 2011); Similar lot size (6,436 vs 6,464 sqft)
    $315,469
  • 21715 Alta Peak Way, Katy, TX 77449
    2,069 sqft | $138/sqft | built 2012 | Similar size (2,069 vs 2,148 sqft); Similar age (2012 vs 2011); Similar lot size (6,414 vs 6,464 sqft)
    $286,073

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.

  • 6903 Silver Trace Ct, Katy, TX 77449
    July-28-2026 | 2,133 sqft | $131/sqft | built 2012 | Similar size (2,133 sqft); Similar age (2012); Sold after the valuation date
    $279,000
  • 4818 Jarl Ct, Katy, TX 77449
    July-17-2026 | 2,115 sqft | $128/sqft | built 2010 | Similar size (2,115 sqft); Similar age (2010); Sold after the valuation date
    $269,900
  • 4406 Follina Trl, Katy, TX 77449
    August-18-2026 | 2,146 sqft | $147/sqft | built 2020 | Similar size (2,146 sqft); Moderate age difference (9 years newer); Sold after the valuation date
    $315,000
  • 5906 Coyote Echo Dr, Katy, TX 77449
    August-10-2026 | 2,285 sqft | $139/sqft | built 2007 | 6% size difference (2,285 sqft); Moderate age difference (4 years older); Sold after the valuation date
    $317,500
  • 3822 Cactus Field Ln, Katy, TX 77449
    July-23-2026 | 2,034 sqft | $157/sqft | built 2016 | 5% size difference (2,034 sqft); Moderate age difference (5 years newer); Sold after the valuation date
    $320,000

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.