Harris Value

20706 Castlemills Ct, Katy, TX 77450

2,175 sqft, built 1992, in Kelliwood Place Appraised at $394,315 for 2026.

Harris County account 1172640040002

Appraised value
$394,315
Tax year 2026 · after any cap, before exemptions
Market value
$399,843
Living area
2,175 sqft
$181 per sqft
Year built
1992
Good quality
Homestead
Yes
Owner-occupied exemption on file

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 10.0% from $358,469 in 2025 to $394,315 in 2026.
  • Appraised value per square footThe current public record shows about $181 per square foot before any comparable-property adjustments.
  • Market/appraised spreadThe county market value is $5,528 above the appraised value used on this page.
  • 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.

  • 20723 Castlemills Ct, Katy, TX 77450
    2,145 sqft | $171/sqft | built 1991 | Similar size (2,145 vs 2,175 sqft); Similar age (1991 vs 1992); Similar lot size (7,200 vs 7,200 sqft)
    $366,953
  • 20726 Fawnbrook Ct, Katy, TX 77450
    2,201 sqft | $183/sqft | built 1996 | Similar size (2,201 vs 2,175 sqft); Similar age (1996 vs 1992); Similar lot size (7,200 vs 7,200 sqft)
    $402,641
  • 20519 Fawnbrook Ct, Katy, TX 77450
    2,161 sqft | $180/sqft | built 1995 | Similar size (2,161 vs 2,175 sqft); Similar age (1995 vs 1992); Similar lot size (7,440 vs 7,200 sqft)
    $389,725
  • 20614 Castlemills Ct, Katy, TX 77450
    2,209 sqft | $174/sqft | built 1992 | Similar size (2,209 vs 2,175 sqft); Built same year (1992); Similar lot size (7,674 vs 7,200 sqft)
    $383,832
  • 20710 Fawnbrook Ct, Katy, TX 77450
    2,012 sqft | $192/sqft | built 1996 | 8% smaller (2,012 vs 2,175 sqft); Similar age (1996 vs 1992); Similar lot size (7,200 vs 7,200 sqft)
    $387,248

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.

  • 1219 Hollow Ash Ln, Katy, TX 77450
    September-16-2026 | 2,334 sqft | $156/sqft | built 1993 | 7% size difference (2,334 sqft); Similar age (1993); Sold after the valuation date
    $365,000
  • 1211 Lamplight Trail Dr, Katy, TX 77450
    September-10-2026 | 2,039 sqft | $169/sqft | built 1993 | 6% size difference (2,039 sqft); Similar age (1993); Sold after the valuation date
    $345,000
  • 20518 Hampshire Rocks Dr, Katy, TX 77450
    August-28-2026 | 2,282 sqft | $180/sqft | built 1990 | Similar size (2,282 sqft); Similar age (1990); Sold after the valuation date
    $409,900
  • 21311 Park York Dr, Katy, TX 77450
    September-8-2026 | 2,172 sqft | $145/sqft | built 1977 | Similar size (2,172 sqft); Sold after the valuation date
    $315,000
  • 22818 Orchard Oak Ln, Katy, TX 77450
    August-18-2026 | 1,987 sqft | $181/sqft | built 1994 | 9% size difference (1,987 sqft); Similar age (1994); Sold after the valuation date
    $360,000

Public appraisal comparison for 2026. Prepared . Appraisal source: Harris County Appraisal District. Sales data checked in this snapshot: . Matches consider available size, age, location and property characteristics. How comparisons work.