Harris Value

21738 Ashford Grv, Katy, TX 77450

3,712 sqft, built 2002, in Oak Park Trails Appraised at $447,324 for 2026.

Harris County account 1222000010024

Appraised value
$447,324
Tax year 2026 · after any cap, before exemptions
Living area
3,712 sqft
$121 per sqft
Year built
2002
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 decreased 3.7% from $464,313 in 2025 to $447,324 in 2026.
  • Appraised value per square footThe current public record shows about $121 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.

  • 2310 Channelwood Ln, Katy, TX 77450
    3,553 sqft | $126/sqft | built 2003 | Similar size (3,553 vs 3,712 sqft); Similar age (2003 vs 2002); Similar lot size (12,941 vs 12,774 sqft)
    $448,029
  • 21507 Perrington Ct, Katy, TX 77450
    3,712 sqft | $121/sqft | built 2002 | Similar size (3,712 vs 3,712 sqft); Built same year (2002); Lot 10% smaller (11,473 vs 12,774 sqft)
    $447,405
  • 2318 Aspenfield Ln, Katy, TX 77450
    3,497 sqft | $126/sqft | built 2003 | 6% smaller (3,497 vs 3,712 sqft); Similar age (2003 vs 2002); Similar lot size (12,846 vs 12,774 sqft)
    $440,325
  • 21547 Tallow Grove Ln, Katy, TX 77450
    3,497 sqft | $128/sqft | built 2003 | 6% smaller (3,497 vs 3,712 sqft); Similar age (2003 vs 2002); Similar lot size (12,873 vs 12,774 sqft)
    $446,885
  • 1807 Parkfair Ct, Katy, TX 77450
    3,526 sqft | $123/sqft | built 2002 | 5% smaller (3,526 vs 3,712 sqft); Built same year (2002); Lot 10% smaller (11,472 vs 12,774 sqft)
    $433,388

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.

  • 2010 Briarchester Dr, Katy, TX 77450
    August-31-2026 | 3,753 sqft | $163/sqft | built 1998 | Similar size (3,753 sqft); Moderate age difference (4 years older); Sold after the valuation date
    $612,500
  • 20603 Morning Creek Dr, Katy, TX 77450
    August-26-2026 | 3,725 sqft | $134/sqft | built 1998 | Similar size (3,725 sqft); Moderate age difference (4 years older); Sold after the valuation date
    $499,900
  • 20502 Chadbury Park Dr, Katy, TX 77450
    September-30-2026 | 3,672 sqft | $132/sqft | built 1990 | Similar size (3,672 sqft); Sold after the valuation date
    $484,900
  • 22919 Heathercroft Dr, Katy, TX 77450
    September-30-2026 | 3,424 sqft | $143/sqft | built 1998 | 8% size difference (3,424 sqft); Moderate age difference (4 years older); Sold after the valuation date
    $489,000
  • 1911 Hartglen Cir, Katy, TX 77450
    August-21-2026 | 3,902 sqft | $205/sqft | built 1997 | 5% size difference (3,902 sqft); Moderate age difference (5 years older); Sold after the valuation date
    $799,000

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.