Harris Value

19723 Diamond Hills Ln, Katy, TX 77449

2,753 sqft, built 2004, in Windstone Colony Appraised at $328,453 for 2026.

Harris County account 1247000020011

Appraised value
$328,453
Tax year 2026 · after any cap, before exemptions
Living area
2,753 sqft
$119 per sqft
Year built
2004
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 77449, Windstone Colony, 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 4.1% from $342,365 in 2025 to $328,453 in 2026.
  • Appraised value per square footThe current public record shows about $119 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Windstone Colony neighborhood and ZIP 77449.
  • Neighborhood value signalAmong 378 residential records in the same neighborhood, the average appraised value is about $131 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -3.0% on average.

Comparable assessments

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

  • 4807 Claymill Ct, Katy, TX 77449
    2,753 sqft | $124/sqft | built 2004 | Similar size (2,753 vs 2,753 sqft); Built same year (2004); Similar lot size (7,902 vs 7,801 sqft)
    $340,493
  • 5011 Beechknoll Ln, Houston, TX 77449
    2,631 sqft | $121/sqft | built 2003 | Similar size (2,631 vs 2,753 sqft); Similar age (2003 vs 2004); Similar lot size (7,909 vs 7,801 sqft)
    $317,336
  • 19302 Colony Trail Ln, Houston, TX 77449
    2,652 sqft | $117/sqft | built 2002 | Similar size (2,652 vs 2,753 sqft); Similar age (2002 vs 2004); Similar lot size (7,637 vs 7,801 sqft)
    $309,202
  • 20007 Still Manor Ct, Katy, TX 77449
    2,769 sqft | $119/sqft | built 2004 | Similar size (2,769 vs 2,753 sqft); Built same year (2004); Similar lot size (7,099 vs 7,801 sqft)
    $328,827
  • 20007 Diamond Hills Ln, Katy, TX 77449
    2,717 sqft | $123/sqft | built 2005 | Similar size (2,717 vs 2,753 sqft); Similar age (2005 vs 2004); Similar lot size (7,099 vs 7,801 sqft)
    $333,471

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.

  • 4035 Mt Whitney Way, Katy, TX 77449
    September-4-2026 | 2,721 sqft | $110/sqft | built 2004 | Similar size (2,721 sqft); Similar age (2004); Sold after the valuation date
    $299,000
  • 19423 Bear Springs Dr, Katy, TX 77449
    August-7-2026 | 2,647 sqft | $107/sqft | built 2001 | Similar size (2,647 sqft); Similar age (2001); Sold after the valuation date
    $284,500
  • 3502 Sweetspire Rd, Katy, TX 77449
    June-5-2026 | 2,758 sqft | $123/sqft | built 2000 | Similar size (2,758 sqft); Moderate age difference (4 years older); Sold after the valuation date
    $339,000
  • 18606 Balsam Creek Ln, Katy, TX 77449
    July-28-2026 | 2,712 sqft | $110/sqft | built 2014 | Similar size (2,712 sqft); Moderate age difference (10 years newer); Sold after the valuation date
    $299,000
  • 21515 Hickman Manor Ln, Katy, TX 77449
    July-10-2026 | 2,652 sqft | $106/sqft | built 2003 | Similar size (2,652 sqft); Similar age (2003); Sold after the valuation date
    $279,980

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.