Harris Value

21438 Park Post Ln, Katy, TX 77450

2,128 sqft, built 1989, in Memorial Parkway Appraised at $345,411 for 2026.

Harris County account 1156030490022

Appraised value
$345,411
Tax year 2026 · after any cap, before exemptions
Living area
2,128 sqft
$162 per sqft
Year built
1989
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 1.2% from $349,549 in 2025 to $345,411 in 2026.
  • Appraised value per square footThe current public record shows about $162 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.

  • 21406 Park Post Ln, Katy, TX 77450
    2,108 sqft | $149/sqft | built 1990 | Similar size (2,108 vs 2,128 sqft); Similar age (1990 vs 1989); Similar lot size (6,900 vs 6,900 sqft)
    $314,269
  • 21446 Park Timbers Ln, Katy, TX 77450
    2,137 sqft | $158/sqft | built 1990 | Similar size (2,137 vs 2,128 sqft); Similar age (1990 vs 1989); Similar lot size (7,360 vs 6,900 sqft)
    $336,709
  • 21431 Park Mill Ln, Katy, TX 77450
    2,092 sqft | $165/sqft | built 1990 | Similar size (2,092 vs 2,128 sqft); Similar age (1990 vs 1989); Similar lot size (6,900 vs 6,900 sqft)
    $344,932
  • 21315 Park Timbers Ln, Katy, TX 77450
    2,040 sqft | $155/sqft | built 1985 | Similar size (2,040 vs 2,128 sqft); Similar age (1985 vs 1989); Similar lot size (6,915 vs 6,900 sqft)
    $315,658
  • 21442 Park Orchard Dr, Katy, TX 77450
    2,037 sqft | $135/sqft | built 1983 | Similar size (2,037 vs 2,128 sqft); Similar lot size (6,900 vs 6,900 sqft); Same quality (Average)
    $274,392

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.

  • 1211 Lamplight Trail Dr, Katy, TX 77450
    September-10-2026 | 2,039 sqft | $169/sqft | built 1993 | Similar size (2,039 sqft); Moderate age difference (4 years newer); Sold after the valuation date
    $345,000
  • 22818 Orchard Oak Ln, Katy, TX 77450
    August-18-2026 | 1,987 sqft | $181/sqft | built 1994 | 7% size difference (1,987 sqft); Moderate age difference (5 years newer); Sold after the valuation date
    $360,000
  • 20319 Monkswood Dr, Katy, TX 77450
    August-21-2026 | 2,118 sqft | $165/sqft | built 1978 | Similar size (2,118 sqft); Sold after the valuation date
    $350,000
  • 20518 Hampshire Rocks Dr, Katy, TX 77450
    August-28-2026 | 2,282 sqft | $180/sqft | built 1990 | 7% size difference (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 | 10% size difference (2,334 sqft); Moderate age difference (4 years newer); Sold after the valuation date
    $365,000

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.