Harris Value

21602 Highland Knolls Dr, Katy, TX 77450

2,156 sqft, built 2002, in Memorial Parkway Appraised at $338,151 for 2026.

Harris County account 1137770000024

Appraised value
$338,151
Tax year 2026 · after any cap, before exemptions
Living area
2,156 sqft
$157 per sqft
Year built
2002
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 77450, Memorial Parkway, 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 3.3% from $349,820 in 2025 to $338,151 in 2026.
  • Appraised value per square footThe current public record shows about $157 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Memorial Parkway neighborhood and ZIP 77450.
  • Neighborhood value signalAmong 402 residential records in the same neighborhood, the average appraised value is about $152 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +4.0% on average.

Comparable assessments

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

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.

  • 21318 Twisted Willow Ln, Katy, TX 77450
    July-30-2026 | 2,183 sqft | $151/sqft | built 2002 | Similar size (2,183 sqft); Similar age (2002); Sold after the valuation date
    $330,000
  • 1211 Lamplight Trail Dr, Katy, TX 77450
    September-10-2026 | 2,039 sqft | $169/sqft | built 1993 | 5% size difference (2,039 sqft); Moderate age difference (9 years older); Sold after the valuation date
    $345,000
  • 2022 Bluffton Ln, Katy, TX 77450
    July-2-2026 | 2,054 sqft | $195/sqft | built 2002 | Similar size (2,054 sqft); Similar age (2002); Sold after the valuation date
    $400,000
  • 20518 Hampshire Rocks Dr, Katy, TX 77450
    August-28-2026 | 2,282 sqft | $180/sqft | built 1990 | 6% size difference (2,282 sqft); Sold after the valuation date
    $409,900
  • 1219 Hollow Ash Ln, Katy, TX 77450
    September-16-2026 | 2,334 sqft | $156/sqft | built 1993 | 8% size difference (2,334 sqft); Moderate age difference (9 years older); Sold after the valuation date
    $365,000

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.