Harris Value

21323 Park Bishop Dr, Katy, TX 77450

2,592 sqft, built 1988, in Memorial Parkway Appraised at $328,668 for 2026.

Harris County account 1159870470020

Appraised value
$328,668
Tax year 2026 · after any cap, before exemptions
Living area
2,592 sqft
$127 per sqft
Year built
1988
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 0.6% from $330,714 in 2025 to $328,668 in 2026.
  • Appraised value per square footThe current public record shows about $127 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 229 residential records in the same neighborhood, the average appraised value is about $160 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +2.3% on average.

Comparable assessments

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

  • 21318 Park Orchard Dr, Katy, TX 77450
    2,592 sqft | $134/sqft | built 1987 | Similar size (2,592 vs 2,592 sqft); Similar age (1987 vs 1988); Similar lot size (6,326 vs 6,325 sqft)
    $347,326
  • 21319 Park Orchard Dr, Katy, TX 77450
    2,592 sqft | $140/sqft | built 1987 | Similar size (2,592 vs 2,592 sqft); Similar age (1987 vs 1988); Similar lot size (6,342 vs 6,325 sqft)
    $362,987
  • 21315 Park Mill Dr, Katy, TX 77450
    2,520 sqft | $128/sqft | built 1986 | Similar size (2,520 vs 2,592 sqft); Similar age (1986 vs 1988); Similar lot size (6,327 vs 6,325 sqft)
    $321,764
  • 21311 Park Orchard Dr, Katy, TX 77450
    2,592 sqft | $124/sqft | built 1987 | Similar size (2,592 vs 2,592 sqft); Similar age (1987 vs 1988); Similar lot size (6,726 vs 6,325 sqft)
    $321,088
  • 21314 Park Bishop Dr, Katy, TX 77450
    2,705 sqft | $129/sqft | built 1989 | Similar size (2,705 vs 2,592 sqft); Similar age (1989 vs 1988); Similar lot size (6,505 vs 6,325 sqft)
    $349,529

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.

  • 21450 Park Post Ln, Katy, TX 77450
    September-14-2026 | 2,448 sqft | $155/sqft | built 1989 | 6% size difference (2,448 sqft); Similar age (1989); Sold after the valuation date
    $380,000
  • 1311 Shadow Mountain Dr, Katy, TX 77450
    September-18-2026 | 2,396 sqft | $134/sqft | built 1994 | 8% size difference (2,396 sqft); Moderate age difference (6 years newer); Sold after the valuation date
    $319,900
  • 2142 Scenic Hollow Ct, Katy, TX 77450
    September-12-2026 | 2,430 sqft | $127/sqft | built 1995 | 6% size difference (2,430 sqft); Moderate age difference (7 years newer); Sold after the valuation date
    $309,000
  • 20723 Vanderwick Dr, Katy, TX 77450
    August-26-2026 | 2,586 sqft | $168/sqft | built 1982 | Similar size (2,586 sqft); Moderate age difference (6 years older); Sold after the valuation date
    $435,000
  • 1419 Dominion Dr, Katy, TX 77450
    September-11-2026 | 2,498 sqft | $172/sqft | built 1979 | Similar size (2,498 sqft); Moderate age difference (9 years older); Sold after the valuation date
    $430,000

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.