Harris Value

20018 Chasestone Ct, Katy, TX 77450

3,827 sqft, built 1988, in Kelliwood Appraised at $629,998 for 2026.

Harris County account 1153720010014

Appraised value
$629,998
Tax year 2026 · after any cap, before exemptions
Living area
3,827 sqft
$165 per sqft
Year built
1988
Excellent 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, 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 7.6% from $585,640 in 2025 to $629,998 in 2026.
  • Appraised value per square footThe current public record shows about $165 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Kelliwood neighborhood and ZIP 77450.
  • Neighborhood value signalAmong 394 residential records in the same neighborhood, the average appraised value is about $162 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +4.9% on average.

Comparable assessments

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

  • 1515 Shillington Dr, Katy, TX 77450
    3,857 sqft | $170/sqft | built 1988 | Similar size (3,857 vs 3,827 sqft); Built same year (1988); Similar lot size (11,500 vs 11,500 sqft)
    $653,841
  • 1418 Mission Springs Dr, Katy, TX 77450
    3,898 sqft | $168/sqft | built 1989 | Similar size (3,898 vs 3,827 sqft); Similar age (1989 vs 1988); Similar lot size (11,500 vs 11,500 sqft)
    $656,521
  • 1507 Kelliwood Oaks Dr, Katy, TX 77450
    3,817 sqft | $167/sqft | built 1988 | Similar size (3,817 vs 3,827 sqft); Built same year (1988); Similar lot size (11,935 vs 11,500 sqft)
    $638,597
  • 20106 Tilstock Dr, Katy, TX 77450
    3,914 sqft | $190/sqft | built 1987 | Similar size (3,914 vs 3,827 sqft); Similar age (1987 vs 1988); Similar lot size (11,500 vs 11,500 sqft)
    $743,433
  • 1539 Mission Springs Dr, Katy, TX 77450
    3,767 sqft | $166/sqft | built 1990 | Similar size (3,767 vs 3,827 sqft); Similar age (1990 vs 1988); Similar lot size (11,554 vs 11,500 sqft)
    $627,186

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 (10 years newer); Sold after the valuation date
    $612,500
  • 1911 Hartglen Cir, Katy, TX 77450
    August-21-2026 | 3,902 sqft | $205/sqft | built 1997 | Similar size (3,902 sqft); Moderate age difference (9 years newer); Sold after the valuation date
    $799,000
  • 2414 Shelby Park Dr, Katy, TX 77450
    July-27-2026 | 3,800 sqft | $151/sqft | built 1992 | Similar size (3,800 sqft); Moderate age difference (4 years newer); Sold after the valuation date
    $575,000
  • 1634 Kelliwood Oaks Dr, Katy, TX 77450
    September-23-2026 | 4,448 sqft | $194/sqft | built 1992 | Moderate age difference (4 years newer); Sold after the valuation date
    $865,000
  • 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 (10 years newer); Sold after the valuation date
    $499,900

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.