Harris Value

642 Aldersgate Ct, Katy, TX 77450

2,719 sqft, built 1975, in Nottingham Country Appraised at $380,751 for 2026.

Harris County account 1056620000027

Appraised value
$380,751
Tax year 2026 · after any cap, before exemptions
Living area
2,719 sqft
$140 per sqft
Year built
1975
Good 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, Nottingham Country, 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 0.4% from $382,238 in 2025 to $380,751 in 2026.
  • Appraised value per square footThe current public record shows about $140 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Nottingham Country neighborhood and ZIP 77450.
  • Neighborhood value signalAmong 508 residential records in the same neighborhood, the average appraised value is about $152 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +2.8% on average.

Comparable assessments

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

  • 719 Enford Ct, Katy, TX 77450
    2,722 sqft | $145/sqft | built 1976 | Similar size (2,722 vs 2,719 sqft); Similar age (1976 vs 1975); Similar lot size (14,147 vs 14,118 sqft)
    $395,534
  • 20302 Silbury Ct, Katy, TX 77450
    2,732 sqft | $142/sqft | built 1976 | Similar size (2,732 vs 2,719 sqft); Similar age (1976 vs 1975); Lot 12% smaller (12,380 vs 14,118 sqft)
    $387,605
  • 415 Bauxhall Ct, Katy, TX 77450
    2,654 sqft | $138/sqft | built 1973 | Similar size (2,654 vs 2,719 sqft); Similar age (1973 vs 1975); Lot 13% smaller (12,293 vs 14,118 sqft)
    $365,448
  • 20102 Wickham Ct, Katy, TX 77450
    2,713 sqft | $174/sqft | built 1974 | Similar size (2,713 vs 2,719 sqft); Similar age (1974 vs 1975); Similar lot size (13,519 vs 14,118 sqft)
    $471,772
  • 20103 Dering Ct, Katy, TX 77450
    2,766 sqft | $170/sqft | built 1973 | Similar size (2,766 vs 2,719 sqft); Similar age (1973 vs 1975); Similar lot size (13,519 vs 14,118 sqft)
    $470,318

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.

  • 703 Cranfield Ct, Katy, TX 77450
    September-21-2026 | 2,658 sqft | $173/sqft | built 1979 | Similar size (2,658 sqft); Moderate age difference (4 years newer); Sold after the valuation date
    $460,000
  • 20426 Laverton Dr, Katy, TX 77450
    June-25-2026 | 2,705 sqft | $152/sqft | built 1977 | Similar size (2,705 sqft); Similar age (1977); Sold after the valuation date
    $410,000
  • 20911 Park Brush Cir, Katy, TX 77450
    September-17-2026 | 2,890 sqft | $119/sqft | built 1977 | 6% size difference (2,890 sqft); Similar age (1977); Sold after the valuation date
    $345,000
  • 1027 Flagmore Dr, Katy, TX 77450
    August-18-2026 | 2,698 sqft | $189/sqft | built 1983 | Similar size (2,698 sqft); Moderate age difference (8 years newer); Sold after the valuation date
    $510,000
  • 20242 Tilstock Dr, Katy, TX 77450
    May-29-2026 | 2,683 sqft | $194/sqft | built 1980 | Similar size (2,683 sqft); Moderate age difference (5 years newer); Sold after the valuation date
    $520,000

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.