Harris Value

21303 Park Bishop Dr, Katy, TX 77450

3,140 sqft, built 1988, in Memorial Parkway Appraised at $423,835 for 2026.

Harris County account 1159870470015

Appraised value
$423,835
Tax year 2026 · after any cap, before exemptions
Living area
3,140 sqft
$135 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 3.2% from $437,700 in 2025 to $423,835 in 2026.
  • Appraised value per square footThe current public record shows about $135 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.

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 | 7% size difference (2,925 sqft); Moderate age difference (6 years older); Sold after the valuation date
    $480,000
  • 22519 Wildwood Grove Dr, Katy, TX 77450
    July-2-2026 | 3,123 sqft | $152/sqft | built 1984 | Similar size (3,123 sqft); Moderate age difference (4 years older); Sold after the valuation date
    $475,000
  • 20506 Chapel Glen Ct, Katy, TX 77450
    June-18-2026 | 3,071 sqft | $169/sqft | built 1992 | Similar size (3,071 sqft); Moderate age difference (4 years newer); Sold after the valuation date
    $520,000
  • 1118 Sherfield Ridge Dr, Katy, TX 77450
    August-21-2026 | 3,538 sqft | $201/sqft | built 1989 | 13% size difference (3,538 sqft); Similar age (1989); Sold after the valuation date
    $709,700

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.