Harris Value

21615 Mt McKinley Way, Katy, TX 77449

2,670 sqft, built 2007 Appraised at $316,246 for 2026.

Harris County account 1240210010004

Appraised value
$316,246
Tax year 2026 · after any cap, before exemptions
Living area
2,670 sqft
$118 per sqft
Year built
2007
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 11.6% from $357,924 in 2025 to $316,246 in 2026.
  • Appraised value per square footThe current public record shows about $118 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.

  • 21511 N Boundary Peak Way, Katy, TX 77449
    2,732 sqft | $112/sqft | built 2004 | Similar size (2,732 vs 2,670 sqft); Similar age (2004 vs 2007); Similar lot size (6,316 vs 6,664 sqft)
    $305,678
  • 4331 Mt Davis Way, Katy, TX 77449
    2,788 sqft | $112/sqft | built 2006 | Similar size (2,788 vs 2,670 sqft); Similar age (2006 vs 2007); Similar lot size (6,940 vs 6,664 sqft)
    $313,595
  • 21711 Britton Hill Way, Katy, TX 77449
    2,664 sqft | $115/sqft | built 2009 | Similar size (2,664 vs 2,670 sqft); Similar age (2009 vs 2007); Similar lot size (6,000 vs 6,664 sqft)
    $305,724
  • 4222 Mt Vinson Way, Katy, TX 77449
    2,720 sqft | $114/sqft | built 2007 | Similar size (2,720 vs 2,670 sqft); Built same year (2007); Similar lot size (6,000 vs 6,664 sqft)
    $309,394
  • 4227 Mt Vinson Way, Katy, TX 77449
    2,702 sqft | $114/sqft | built 2009 | Similar size (2,702 vs 2,670 sqft); Similar age (2009 vs 2007); Similar lot size (6,000 vs 6,664 sqft)
    $309,070

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); Similar age (2004); Sold after the valuation date
    $299,000
  • 21043 Riverside Ridge Ln, Katy, TX 77449
    July-30-2026 | 2,616 sqft | $138/sqft | built 2000 | Similar size (2,616 sqft); Moderate age difference (7 years older); Sold after the valuation date
    $360,000
  • 19423 Bear Springs Dr, Katy, TX 77449
    August-7-2026 | 2,647 sqft | $107/sqft | built 2001 | Similar size (2,647 sqft); Moderate age difference (6 years older); Sold after the valuation date
    $284,500
  • 6510 Briar Moss Ln, Katy, TX 77449
    August-17-2026 | 2,515 sqft | $121/sqft | built 2006 | 6% size difference (2,515 sqft); Similar age (2006); Sold after the valuation date
    $305,000
  • 21515 Hickman Manor Ln, Katy, TX 77449
    July-10-2026 | 2,652 sqft | $106/sqft | built 2003 | Similar size (2,652 sqft); Moderate age difference (4 years older); Sold after the valuation date
    $279,980

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.