Harris Value

21327 Park Bishop Dr, Katy, TX 77450

3,032 sqft, built 1988, in Memorial Parkway Appraised at $425,828 for 2026.

Harris County account 1159870470021

Appraised value
$425,828
Tax year 2026 · after any cap, before exemptions
Living area
3,032 sqft
$140 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 3.0% from $439,015 in 2025 to $425,828 in 2026.
  • Appraised value per square footThe current public record shows about $140 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.

  • 21302 Park Post Ln, Katy, TX 77450
    3,056 sqft | $114/sqft | built 1986 | Similar size (3,056 vs 3,032 sqft); Similar age (1986 vs 1988); Similar lot size (8,211 vs 7,738 sqft)
    $348,920
  • 21303 Park Bishop Dr, Katy, TX 77450
    3,140 sqft | $135/sqft | built 1988 | Similar size (3,140 vs 3,032 sqft); Built same year (1988); Similar lot size (7,661 vs 7,738 sqft)
    $423,835
  • 21302 Park Bishop Dr, Katy, TX 77450
    2,592 sqft | $123/sqft | built 1988 | 14% smaller (2,592 vs 3,032 sqft); Built same year (1988); Similar lot size (7,751 vs 7,738 sqft)
    $319,698
  • 21323 Park Mill Dr, Katy, TX 77450
    2,592 sqft | $128/sqft | built 1986 | 14% smaller (2,592 vs 3,032 sqft); Similar age (1986 vs 1988); Similar lot size (7,738 vs 7,738 sqft)
    $330,875
  • 21322 Park Mill Dr, Katy, TX 77450
    3,476 sqft | $106/sqft | built 1986 | 15% larger (3,476 vs 3,032 sqft); Similar age (1986 vs 1988); Similar lot size (7,738 vs 7,738 sqft)
    $369,035

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.

  • 23027 Red River Dr, Katy, TX 77450
    August-31-2026 | 3,005 sqft | $133/sqft | built 1989 | Similar size (3,005 sqft); Similar age (1989); Sold after the valuation date
    $400,000
  • 1122 Rustic Knolls Dr, Katy, TX 77450
    July-14-2026 | 2,925 sqft | $164/sqft | built 1982 | Similar size (2,925 sqft); Moderate age difference (6 years older); Sold after the valuation date
    $480,000
  • 20619 Prince Creek Dr, Katy, TX 77450
    August-28-2026 | 2,794 sqft | $174/sqft | built 1982 | 8% size difference (2,794 sqft); Moderate age difference (6 years older); Sold after the valuation date
    $487,000
  • 1402 Sherfield Ridge Dr, Katy, TX 77450
    July-31-2026 | 2,836 sqft | $153/sqft | built 1982 | 6% size difference (2,836 sqft); Moderate age difference (6 years older); Sold after the valuation date
    $435,000
  • 20719 Castle Bend Dr, Katy, TX 77450
    July-30-2026 | 2,884 sqft | $139/sqft | built 1982 | Similar size (2,884 sqft); Moderate age difference (6 years older); Sold after the valuation date
    $399,900

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.