Harris Value

21523 Mt McKinley Way, Katy, TX 77449

2,313 sqft, built 2004 Appraised at $282,397 for 2026.

Harris County account 1240210060006

Appraised value
$282,397
Tax year 2026 · after any cap, before exemptions
Living area
2,313 sqft
$122 per sqft
Year built
2004
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 2847.05, 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 10.9% from $316,948 in 2025 to $282,397 in 2026.
  • Appraised value per square footThe current public record shows about $122 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 287 residential records in the same neighborhood, the average appraised value is about $131 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -8.6% on average.

Comparable assessments

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

  • 4218 Mt Vinson Way, Katy, TX 77449
    2,314 sqft | $121/sqft | built 2005 | Similar size (2,314 vs 2,313 sqft); Similar age (2005 vs 2004); Similar lot size (6,000 vs 6,110 sqft)
    $279,638
  • 4018 Mt Whitney Way, Katy, TX 77449
    2,334 sqft | $121/sqft | built 2004 | Similar size (2,334 vs 2,313 sqft); Built same year (2004); Similar lot size (6,000 vs 6,110 sqft)
    $281,345
  • 4315 Mt Davis Way, Katy, TX 77449
    2,310 sqft | $121/sqft | built 2006 | Similar size (2,310 vs 2,313 sqft); Similar age (2006 vs 2004); Similar lot size (6,000 vs 6,110 sqft)
    $280,239
  • 21515 Mt McKinley Way, Katy, TX 77449
    2,379 sqft | $113/sqft | built 2004 | Similar size (2,379 vs 2,313 sqft); Built same year (2004); Similar lot size (6,110 vs 6,110 sqft)
    $269,767
  • 21635 Britton Hill Way, Katy, TX 77449
    2,265 sqft | $121/sqft | built 2005 | Similar size (2,265 vs 2,313 sqft); Similar age (2005 vs 2004); Similar lot size (6,000 vs 6,110 sqft)
    $275,162

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.

  • 5106 Opal Sky Dr, Katy, TX 77449
    September-24-2026 | 2,322 sqft | $125/sqft | built 2004 | Similar size (2,322 sqft); Similar age (2004); Sold after the valuation date
    $290,000
  • 19806 Millstone Ridge Ln, Katy, TX 77449
    September-29-2026 | 2,433 sqft | $115/sqft | built 2005 | 5% size difference (2,433 sqft); Similar age (2005); Sold after the valuation date
    $279,000
  • 5906 Coyote Echo Dr, Katy, TX 77449
    August-10-2026 | 2,285 sqft | $139/sqft | built 2007 | Similar size (2,285 sqft); Similar age (2007); Sold after the valuation date
    $317,500
  • 20930 Barbons Heath Ct, Katy, TX 77449
    August-28-2026 | 2,429 sqft | $113/sqft | built 2006 | 5% size difference (2,429 sqft); Similar age (2006); Sold after the valuation date
    $274,900
  • 3822 Katy Hollow Dr, TX 77449
    June-30-2026 | 2,299 sqft | $120/sqft | built 2002 | Similar size (2,299 sqft); Similar age (2002); Sold after the valuation date
    $275,000

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.