Harris Value

20518 Valley Wells Dr, Katy, TX 77449

2,964 sqft, built 1991, in Sundown Glen Appraised at $320,932 for 2026.

Harris County account 1161600060021

Appraised value
$320,932
Tax year 2026 · after any cap, before exemptions
Living area
2,964 sqft
$108 per sqft
Year built
1991
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, Sundown Glen, 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 1.0% from $324,198 in 2025 to $320,932 in 2026.
  • Appraised value per square footThe current public record shows about $108 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Sundown Glen neighborhood and ZIP 77449.
  • Neighborhood value signalAmong 176 residential records in the same neighborhood, the average appraised value is about $141 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +1.3% on average.

Comparable assessments

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

  • 20603 Valley Wells Dr, Katy, TX 77449
    2,870 sqft | $108/sqft | built 1991 | Similar size (2,870 vs 2,964 sqft); Built same year (1991); Similar lot size (7,306 vs 7,101 sqft)
    $310,080
  • 20615 Cat Springs Ct, Katy, TX 77449
    2,825 sqft | $108/sqft | built 1990 | Similar size (2,825 vs 2,964 sqft); Similar age (1990 vs 1991); Similar lot size (7,044 vs 7,101 sqft)
    $303,891
  • 20506 Cat Springs Ct, Katy, TX 77449
    2,825 sqft | $110/sqft | built 1990 | Similar size (2,825 vs 2,964 sqft); Similar age (1990 vs 1991); Similar lot size (6,747 vs 7,101 sqft)
    $311,789
  • 20607 Cat Springs Ct, Katy, TX 77449
    2,567 sqft | $113/sqft | built 1990 | 13% smaller (2,567 vs 2,964 sqft); Similar age (1990 vs 1991); Similar lot size (7,041 vs 7,101 sqft)
    $289,157
  • 20603 Cat Springs Ct, Katy, TX 77449
    2,580 sqft | $112/sqft | built 1990 | 13% smaller (2,580 vs 2,964 sqft); Similar age (1990 vs 1991); Similar lot size (6,911 vs 7,101 sqft)
    $289,585

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.

  • 20402 Avery Point Dr, Katy, TX 77449
    June-22-2026 | 2,996 sqft | $108/sqft | built 1992 | Similar size (2,996 sqft); Similar age (1992); Sold after the valuation date
    $323,500
  • 19823 Arbor Creek Dr, Katy, TX 77449
    August-28-2026 | 3,117 sqft | $120/sqft | built 1996 | 5% size difference (3,117 sqft); Moderate age difference (5 years newer); Sold after the valuation date
    $374,000
  • 20407 Westfield Estates Dr, Katy, TX 77449
    July-20-2026 | 3,028 sqft | $106/sqft | built 1996 | Similar size (3,028 sqft); Moderate age difference (5 years newer); Sold after the valuation date
    $321,990
  • 19423 Bear Springs Dr, Katy, TX 77449
    August-7-2026 | 2,647 sqft | $107/sqft | built 2001 | 11% size difference (2,647 sqft); Moderate age difference (10 years newer); Sold after the valuation date
    $284,500
  • 4035 Mt Whitney Way, Katy, TX 77449
    September-4-2026 | 2,721 sqft | $110/sqft | built 2004 | 8% size difference (2,721 sqft); Sold after the valuation date
    $299,000

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.