Harris Value

18411 Willow Moss Dr, Katy, TX 77449

1,465 sqft, built 1998, in Autumn Run Appraised at $237,558 for 2026.

Harris County account 1153750080005

Appraised value
$237,558
Tax year 2026 · after any cap, before exemptions
Living area
1,465 sqft
$162 per sqft
Year built
1998
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, Autumn Run, 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 1.3% from $234,456 in 2025 to $237,558 in 2026.
  • Appraised value per square footThe current public record shows about $162 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Autumn Run neighborhood and ZIP 77449.
  • Neighborhood value signalAmong 707 residential records in the same neighborhood, the average appraised value is about $143 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +4.4% on average.

Comparable assessments

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

  • 18406 Willow Moss Dr, Katy, TX 77449
    1,468 sqft | $169/sqft | built 1998 | Similar size (1,468 vs 1,465 sqft); Built same year (1998); Similar lot size (6,329 vs 6,303 sqft)
    $248,334
  • 18418 Forest Dew Dr, Katy, TX 77449
    1,469 sqft | $167/sqft | built 1999 | Similar size (1,469 vs 1,465 sqft); Similar age (1999 vs 1998); Similar lot size (6,447 vs 6,303 sqft)
    $245,009
  • 18323 Willow Moss Dr, Katy, TX 77449
    1,406 sqft | $167/sqft | built 1998 | Similar size (1,406 vs 1,465 sqft); Built same year (1998); Similar lot size (6,300 vs 6,303 sqft)
    $235,224
  • 18318 Willow Moss Dr, Katy, TX 77449
    1,406 sqft | $170/sqft | built 1998 | Similar size (1,406 vs 1,465 sqft); Built same year (1998); Similar lot size (6,300 vs 6,303 sqft)
    $239,536
  • 18402 Willow Moss Dr, Katy, TX 77449
    1,406 sqft | $177/sqft | built 1998 | Similar size (1,406 vs 1,465 sqft); Built same year (1998); Similar lot size (6,300 vs 6,303 sqft)
    $248,835

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.

  • 19519 Cairns Dr, Katy, TX 77449
    August-31-2026 | 1,495 sqft | $153/sqft | built 2002 | Similar size (1,495 sqft); Moderate age difference (4 years newer); Sold after the valuation date
    $229,000
  • 21823 Haven Cove Ln, Katy, TX 77449
    September-10-2026 | 1,442 sqft | $159/sqft | built 2003 | Similar size (1,442 sqft); Moderate age difference (5 years newer); Sold after the valuation date
    $229,900
  • 19430 Winding Branch Dr, Katy, TX 77449
    July-30-2026 | 1,447 sqft | $152/sqft | built 1984 | Similar size (1,447 sqft); Sold after the valuation date
    $219,997
  • 6318 Pleasant Stream Dr, Katy, TX 77449
    August-6-2026 | 1,600 sqft | $166/sqft | built 1997 | 9% size difference (1,600 sqft); Similar age (1997); Sold after the valuation date
    $265,900
  • 21110 Bridge Springs Ln, Katy, TX 77449
    August-10-2026 | 1,592 sqft | $162/sqft | built 2002 | 9% size difference (1,592 sqft); Moderate age difference (4 years newer); Sold after the valuation date
    $257,900

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.