Harris Value

21414 Park Mill Ln, Katy, TX 77450

1,337 sqft, built 1985, in Memorial Parkway Appraised at $259,171 for 2026.

Harris County account 1156030460052

Appraised value
$259,171
Tax year 2026 · after any cap, before exemptions
Living area
1,337 sqft
$194 per sqft
Year built
1985
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 increased 9.5% from $236,653 in 2025 to $259,171 in 2026.
  • Appraised value per square footThe current public record shows about $194 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.

  • 21415 Park Bishop Dr, Katy, TX 77450
    1,341 sqft | $200/sqft | built 1983 | Similar size (1,341 vs 1,337 sqft); Similar age (1983 vs 1985); Similar lot size (6,900 vs 6,785 sqft)
    $267,754
  • 21439 Park Orchard Dr, Katy, TX 77450
    1,284 sqft | $207/sqft | built 1983 | Similar size (1,284 vs 1,337 sqft); Similar age (1983 vs 1985); Similar lot size (6,900 vs 6,785 sqft)
    $265,430
  • 21418 Park Bishop Dr, Katy, TX 77450
    1,284 sqft | $214/sqft | built 1983 | Similar size (1,284 vs 1,337 sqft); Similar age (1983 vs 1985); Similar lot size (6,900 vs 6,785 sqft)
    $274,590
  • 21410 Park Mill Ln, Katy, TX 77450
    1,284 sqft | $200/sqft | built 1985 | Similar size (1,284 vs 1,337 sqft); Built same year (1985); Similar lot size (6,785 vs 6,785 sqft)
    $257,191
  • 21446 Park Bishop Dr, Katy, TX 77450
    1,284 sqft | $217/sqft | built 1983 | Similar size (1,284 vs 1,337 sqft); Similar age (1983 vs 1985); Similar lot size (7,080 vs 6,785 sqft)
    $278,040

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.

  • 21422 Park Bishop Dr, Katy, TX 77450
    August-6-2026 | 1,335 sqft | $184/sqft | built 1983 | Similar size (1,335 sqft); Similar age (1983); Sold after the valuation date
    $245,000
  • 919 Western Hills Dr, Katy, TX 77450
    August-4-2026 | 1,296 sqft | $174/sqft | built 1978 | Similar size (1,296 sqft); Moderate age difference (7 years older); Sold after the valuation date
    $224,900
  • 1206 Park Ln, Katy, TX 77450
    May-6-2026 | 1,350 sqft | $185/sqft | built 1981 | Similar size (1,350 sqft); Moderate age difference (4 years older); Sold after the valuation date
    $250,000
  • 21222 Park Mount Dr, Katy, TX 77450
    August-26-2026 | 1,516 sqft | $148/sqft | built 1982 | 13% size difference (1,516 sqft); Similar age (1982); Sold after the valuation date
    $225,000
  • 20811 Park Pine Dr, Katy, TX 77450
    July-2-2026 | 1,395 sqft | $176/sqft | built 1978 | Similar size (1,395 sqft); Moderate age difference (7 years older); Sold after the valuation date
    $245,000

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.