Harris Value

634 Aldersgate Ct, Katy, TX 77450

2,918 sqft, built 1973, in Nottingham Country Appraised at $418,038 for 2026.

Harris County account 1056620000029

Appraised value
$418,038
Tax year 2026 · after any cap, before exemptions
Living area
2,918 sqft
$143 per sqft
Year built
1973
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 increased 4.4% from $400,417 in 2025 to $418,038 in 2026.
  • Appraised value per square footThe current public record shows about $143 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.

  • 735 Dominion Dr, Katy, TX 77450
    2,907 sqft | $165/sqft | built 1977 | Similar size (2,907 vs 2,918 sqft); Similar age (1977 vs 1973); Similar lot size (7,980 vs 7,700 sqft)
    $479,826
  • 20106 Hardwidge Ct, Katy, TX 77450
    2,889 sqft | $133/sqft | built 1975 | Similar size (2,889 vs 2,918 sqft); Similar age (1975 vs 1973); Similar lot size (7,676 vs 7,700 sqft)
    $384,685
  • 603 Brenwick Ct, Katy, TX 77450
    2,865 sqft | $165/sqft | built 1976 | Similar size (2,865 vs 2,918 sqft); Similar age (1976 vs 1973); Similar lot size (7,875 vs 7,700 sqft)
    $471,539
  • 631 Houghton Rd, Katy, TX 77450
    2,913 sqft | $134/sqft | built 1973 | Similar size (2,913 vs 2,918 sqft); Built same year (1973); Similar lot size (8,080 vs 7,700 sqft)
    $389,657
  • 723 Dominion Dr, Katy, TX 77450
    2,945 sqft | $152/sqft | built 1977 | Similar size (2,945 vs 2,918 sqft); Similar age (1977 vs 1973); Similar lot size (7,980 vs 7,700 sqft)
    $448,544

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.

  • 20911 Park Brush Cir, Katy, TX 77450
    September-17-2026 | 2,890 sqft | $119/sqft | built 1977 | Similar size (2,890 sqft); Moderate age difference (4 years newer); Sold after the valuation date
    $345,000
  • 1122 Rustic Knolls Dr, Katy, TX 77450
    July-14-2026 | 2,925 sqft | $164/sqft | built 1982 | Similar size (2,925 sqft); Moderate age difference (9 years newer); Sold after the valuation date
    $480,000
  • 20619 Prince Creek Dr, Katy, TX 77450
    August-28-2026 | 2,794 sqft | $174/sqft | built 1982 | Similar size (2,794 sqft); Moderate age difference (9 years newer); Sold after the valuation date
    $487,000
  • 1402 Sherfield Ridge Dr, Katy, TX 77450
    July-31-2026 | 2,836 sqft | $153/sqft | built 1982 | Similar size (2,836 sqft); Moderate age difference (9 years newer); Sold after the valuation date
    $435,000
  • 20115 Dering Ct, Katy, TX 77450
    August-21-2026 | 3,032 sqft | $115/sqft | built 1973 | Similar size (3,032 sqft); Similar age (1973); Sold after the valuation date
    $350,000

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.