Harris Value

21319 Park Bishop Dr, Katy, TX 77450

2,280 sqft, built 1988, in Memorial Parkway Appraised at $311,333 for 2026.

Harris County account 1159870470019

Appraised value
$311,333
Tax year 2026 · after any cap, before exemptions
Living area
2,280 sqft
$137 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 stayed about the same, from $311,333 in 2025 to $311,333 in 2026.
  • Appraised value per square footThe current public record shows about $137 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.

  • 21315 Park Bishop Dr, Katy, TX 77450
    2,204 sqft | $136/sqft | built 1988 | Similar size (2,204 vs 2,280 sqft); Built same year (1988); Similar lot size (6,338 vs 6,338 sqft)
    $298,953
  • 21403 Park Post Ln, Katy, TX 77450
    2,253 sqft | $139/sqft | built 1989 | Similar size (2,253 vs 2,280 sqft); Similar age (1989 vs 1988); Similar lot size (6,775 vs 6,338 sqft)
    $312,571
  • 21322 Park Orchard Dr, Katy, TX 77450
    2,128 sqft | $141/sqft | built 1988 | 7% smaller (2,128 vs 2,280 sqft); Built same year (1988); Similar lot size (6,325 vs 6,338 sqft)
    $299,870
  • 21423 Park Timbers Ln, Katy, TX 77450
    2,347 sqft | $146/sqft | built 1990 | Similar size (2,347 vs 2,280 sqft); Similar age (1990 vs 1988); Similar lot size (5,980 vs 6,338 sqft)
    $343,438
  • 21310 Park Mill Dr, Katy, TX 77450
    2,319 sqft | $131/sqft | built 1987 | Similar size (2,319 vs 2,280 sqft); Similar age (1987 vs 1988); Similar lot size (5,785 vs 6,338 sqft)
    $303,975

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 | 7% size difference (2,448 sqft); Similar age (1989); Sold after the valuation date
    $380,000
  • 20518 Hampshire Rocks Dr, Katy, TX 77450
    August-28-2026 | 2,282 sqft | $180/sqft | built 1990 | Similar size (2,282 sqft); Similar age (1990); Sold after the valuation date
    $409,900
  • 1219 Hollow Ash Ln, Katy, TX 77450
    September-16-2026 | 2,334 sqft | $156/sqft | built 1993 | Similar size (2,334 sqft); Moderate age difference (5 years newer); Sold after the valuation date
    $365,000
  • 2142 Scenic Hollow Ct, Katy, TX 77450
    September-12-2026 | 2,430 sqft | $127/sqft | built 1995 | 7% size difference (2,430 sqft); Moderate age difference (7 years newer); Sold after the valuation date
    $309,000
  • 815 Sierra Lake Dr, Katy, TX 77450
    June-29-2026 | 2,376 sqft | $152/sqft | built 1990 | Similar size (2,376 sqft); Similar age (1990); Sold after the valuation date
    $360,000

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.