Harris Value

20510 Shadow Mill Ct, Katy, TX 77450

2,786 sqft, built 1996, in Kelliwood Place Appraised at $440,754 for 2026.

Harris County account 1172640030050

Appraised value
$440,754
Tax year 2026 · after any cap, before exemptions
Living area
2,786 sqft
$158 per sqft
Year built
1996
Good 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, Kelliwood Place, 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 3.6% from $425,298 in 2025 to $440,754 in 2026.
  • Appraised value per square footThe current public record shows about $158 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Kelliwood Place neighborhood and ZIP 77450.
  • Neighborhood value signalAmong 218 residential records in the same neighborhood, the average appraised value is about $158 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +6.8% on average.

Comparable assessments

Similar public appraisal records selected for this property's equity comparison.

  • 20519 Shadow Mill Ct, Katy, TX 77450
    2,768 sqft | $157/sqft | built 1996 | Similar size (2,768 vs 2,786 sqft); Built same year (1996); Similar lot size (8,389 vs 8,300 sqft)
    $435,882
  • 20511 Shadow Mill Ct, Katy, TX 77450
    2,856 sqft | $156/sqft | built 1996 | Similar size (2,856 vs 2,786 sqft); Built same year (1996); Similar lot size (8,246 vs 8,300 sqft)
    $446,526
  • 20702 Fawnbrook Ct, Katy, TX 77450
    2,848 sqft | $152/sqft | built 1995 | Similar size (2,848 vs 2,786 sqft); Similar age (1995 vs 1996); Similar lot size (8,266 vs 8,300 sqft)
    $431,984
  • 20510 Fawnbrook Ct, Katy, TX 77450
    2,797 sqft | $154/sqft | built 1994 | Similar size (2,797 vs 2,786 sqft); Similar age (1994 vs 1996); Similar lot size (8,517 vs 8,300 sqft)
    $429,857
  • 20410 Autumn Terrace Ln, Katy, TX 77450
    2,838 sqft | $157/sqft | built 1998 | Similar size (2,838 vs 2,786 sqft); Similar age (1998 vs 1996); Similar lot size (8,275 vs 8,300 sqft)
    $446,895

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.

  • 310 Gatemere Ct, Katy, TX 77450
    August-7-2026 | 2,779 sqft | $140/sqft | built 1993 | Similar size (2,779 sqft); Similar age (1993); Sold after the valuation date
    $388,500
  • 2023 Stanford Park Ct, Katy, TX 77450
    August-28-2026 | 2,608 sqft | $142/sqft | built 2000 | 6% size difference (2,608 sqft); Moderate age difference (4 years newer); Sold after the valuation date
    $369,900
  • 20619 Prince Creek Dr, Katy, TX 77450
    August-28-2026 | 2,794 sqft | $174/sqft | built 1982 | Similar size (2,794 sqft); Sold after the valuation date
    $487,000
  • 20511 Shadow Mill Ct, Katy, TX 77450
    May-11-2026 | 2,856 sqft | $165/sqft | built 1996 | Similar size (2,856 sqft); Similar age (1996); Sold after the valuation date
    $470,000
  • 911 Montview Dr, Katy, TX 77450
    August-25-2026 | 2,741 sqft | $157/sqft | built 1983 | Similar size (2,741 sqft); Sold after the valuation date
    $429,900

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.