Harris Value

603 Park Knoll Ln, Katy, TX 77450

2,957 sqft, built 1975, in Memorial Parkway Appraised at $337,684 for 2026.

Harris County account 1071720000012

Appraised value
$337,684
Tax year 2026 · after any cap, before exemptions
Living area
2,957 sqft
$114 per sqft
Year built
1975
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 1.7% from $343,614 in 2025 to $337,684 in 2026.
  • Appraised value per square footThe current public record shows about $114 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 214 residential records in the same neighborhood, the average appraised value is about $132 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +3.0% on average.

Comparable assessments

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

  • 618 Park Grove Ln, Katy, TX 77450
    3,006 sqft | $110/sqft | built 1975 | Similar size (3,006 vs 2,957 sqft); Built same year (1975); Lot 13% smaller (8,588 vs 9,894 sqft)
    $329,406
  • 21634 Park Green Dr, Katy, TX 77450
    2,924 sqft | $90/sqft | built 1975 | Similar size (2,924 vs 2,957 sqft); Built same year (1975); Similar lot size (10,235 vs 9,894 sqft)
    $264,016
  • 610 Park Leaf Ln, Katy, TX 77450
    2,816 sqft | $108/sqft | built 1975 | Similar size (2,816 vs 2,957 sqft); Built same year (1975); Lot 12% smaller (8,736 vs 9,894 sqft)
    $305,330
  • 21634 Park Rock Ln, Katy, TX 77450
    2,998 sqft | $94/sqft | built 1976 | Similar size (2,998 vs 2,957 sqft); Similar age (1976 vs 1975); Similar lot size (10,743 vs 9,894 sqft)
    $282,174
  • 610 Park Grove Ln, Katy, TX 77450
    2,827 sqft | $105/sqft | built 1975 | Similar size (2,827 vs 2,957 sqft); Built same year (1975); Similar lot size (9,372 vs 9,894 sqft)
    $297,512

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.

  • 614 Houghton Rd, Katy, TX 77450
    August-4-2026 | 3,125 sqft | $142/sqft | built 1974 | 6% size difference (3,125 sqft); Similar age (1974); Sold after the valuation date
    $445,000
  • 20911 Park Brush Cir, Katy, TX 77450
    September-17-2026 | 2,890 sqft | $119/sqft | built 1977 | Similar size (2,890 sqft); Similar age (1977); Sold after the valuation date
    $345,000
  • 23027 Red River Dr, Katy, TX 77450
    August-31-2026 | 3,005 sqft | $133/sqft | built 1989 | Similar size (3,005 sqft); Sold after the valuation date
    $400,000
  • 703 Cranfield Ct, Katy, TX 77450
    September-21-2026 | 2,658 sqft | $173/sqft | built 1979 | 10% size difference (2,658 sqft); Moderate age difference (4 years newer); Sold after the valuation date
    $460,000
  • 20115 Dering Ct, Katy, TX 77450
    August-21-2026 | 3,032 sqft | $115/sqft | built 1973 | Similar size (3,032 sqft); Similar age (1973); Sold after the valuation date
    $350,000

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.