Harris Value

21318 Park Downe Ln, Katy, TX 77450

2,628 sqft, built 1975, in Memorial Parkway Appraised at $341,314 for 2026.

Harris County account 1085020000045

Appraised value
$341,314
Tax year 2026 · after any cap, before exemptions
Living area
2,628 sqft
$130 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 1.6% from $347,005 in 2025 to $341,314 in 2026.
  • Appraised value per square footThe current public record shows about $130 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 490 residential records in the same neighborhood, the average appraised value is about $135 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +1.9% on average.

Comparable assessments

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

  • 21007 Cimarron Pky, Katy, TX 77450
    2,657 sqft | $132/sqft | built 1976 | Similar size (2,657 vs 2,628 sqft); Similar age (1976 vs 1975); Similar lot size (8,624 vs 9,562 sqft)
    $349,473
  • 20902 Park Brush Cir, Katy, TX 77450
    2,502 sqft | $120/sqft | built 1976 | Similar size (2,502 vs 2,628 sqft); Similar age (1976 vs 1975); Similar lot size (9,600 vs 9,562 sqft)
    $301,478
  • 21318 Park Wick Ln, Katy, TX 77450
    2,626 sqft | $120/sqft | built 1976 | Similar size (2,626 vs 2,628 sqft); Similar age (1976 vs 1975); Same quality (Average)
    $313,999
  • 0
    2,821 sqft | $113/sqft | built 1978 | 7% larger (2,821 vs 2,628 sqft); Similar age (1978 vs 1975); Similar lot size (10,381 vs 9,562 sqft)
    $319,249
  • 21106 Cimarron Pky, Katy, TX 77450
    2,652 sqft | $116/sqft | built 1975 | Similar size (2,652 vs 2,628 sqft); Built same year (1975); Same quality (Average)
    $308,832

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.

  • 703 Cranfield Ct, Katy, TX 77450
    September-21-2026 | 2,658 sqft | $173/sqft | built 1979 | Similar size (2,658 sqft); Moderate age difference (4 years newer); Sold after the valuation date
    $460,000
  • 602 Windsor Glen Dr, Katy, TX 77450
    July-13-2026 | 2,599 sqft | $164/sqft | built 1979 | Similar size (2,599 sqft); Moderate age difference (4 years newer); Sold after the valuation date
    $425,000
  • 20723 Vanderwick Dr, Katy, TX 77450
    August-26-2026 | 2,586 sqft | $168/sqft | built 1982 | Similar size (2,586 sqft); Moderate age difference (7 years newer); Sold after the valuation date
    $435,000
  • 20215 Lake Sherwood Dr, Katy, TX 77450
    July-22-2026 | 2,604 sqft | $161/sqft | built 1978 | Similar size (2,604 sqft); Similar age (1978); Sold after the valuation date
    $420,000
  • 20414 Withington Dr, Katy, TX 77450
    September-10-2026 | 2,378 sqft | $132/sqft | built 1977 | 10% size difference (2,378 sqft); Similar age (1977); Sold after the valuation date
    $314,000

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.