Harris Value

21603 Valley Oaks Ct, Katy, TX 77450

2,386 sqft, built 2000, in Oak Park Trails Appraised at $363,029 for 2026.

Harris County account 1200910010032

Appraised value
$363,029
Tax year 2026 · after any cap, before exemptions
Living area
2,386 sqft
$152 per sqft
Year built
2000
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, Oak Park Trails, 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 4.9% from $345,922 in 2025 to $363,029 in 2026.
  • Appraised value per square footThe current public record shows about $152 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Oak Park Trails neighborhood and ZIP 77450.
  • Neighborhood value signalAmong 871 residential records in the same neighborhood, the average appraised value is about $148 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -0.6% on average.

Comparable assessments

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

  • 2130 Winding Hollow Dr, Katy, TX 77450
    2,396 sqft | $144/sqft | built 2000 | Similar size (2,396 vs 2,386 sqft); Built same year (2000); Similar lot size (9,225 vs 8,923 sqft)
    $343,997
  • 21502 Elm Hurst Ln, Katy, TX 77450
    2,404 sqft | $147/sqft | built 2004 | Similar size (2,404 vs 2,386 sqft); Similar age (2004 vs 2000); Similar lot size (9,021 vs 8,923 sqft)
    $354,522
  • 2206 Tremont Trail Ln, Katy, TX 77450
    2,426 sqft | $150/sqft | built 2004 | Similar size (2,426 vs 2,386 sqft); Similar age (2004 vs 2000); Similar lot size (8,789 vs 8,923 sqft)
    $364,967
  • 2202 Oak Sand Dr, Katy, TX 77450
    2,437 sqft | $147/sqft | built 1998 | Similar size (2,437 vs 2,386 sqft); Similar age (1998 vs 2000); Similar lot size (9,278 vs 8,923 sqft)
    $359,396
  • 2243 Enchanted Park Ln, Katy, TX 77450
    2,426 sqft | $157/sqft | built 2004 | Similar size (2,426 vs 2,386 sqft); Similar age (2004 vs 2000); Similar lot size (8,524 vs 8,923 sqft)
    $379,968

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.

  • 1311 Shadow Mountain Dr, Katy, TX 77450
    September-18-2026 | 2,396 sqft | $134/sqft | built 1994 | Similar size (2,396 sqft); Moderate age difference (6 years older); Sold after the valuation date
    $319,900
  • 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 (7 years older); Sold after the valuation date
    $365,000
  • 2302 Aspenfield Ln, Katy, TX 77450
    July-15-2026 | 2,426 sqft | $168/sqft | built 2004 | Similar size (2,426 sqft); Moderate age difference (4 years newer); Sold after the valuation date
    $407,000
  • 2023 Stanford Park Ct, Katy, TX 77450
    August-28-2026 | 2,608 sqft | $142/sqft | built 2000 | 9% size difference (2,608 sqft); Similar age (2000); Sold after the valuation date
    $369,900
  • 2510 Bristol Band Ln, Katy, TX 77450
    September-15-2026 | 2,468 sqft | $138/sqft | built 2006 | Similar size (2,468 sqft); Moderate age difference (6 years newer); Sold after the valuation date
    $339,900

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.