Harris Value

20507 Silbury Dr, Katy, TX 77450

3,185 sqft, built 1978, in Nottingham Country Appraised at $498,503 for 2026.

Harris County account 1078760000029

Appraised value
$498,503
Tax year 2026 · after any cap, before exemptions
Living area
3,185 sqft
$157 per sqft
Year built
1978
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 0.3% from $500,169 in 2025 to $498,503 in 2026.
  • Appraised value per square footThe current public record shows about $157 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.

  • 20103 Wickham Ct, Katy, TX 77450
    3,196 sqft | $115/sqft | built 1974 | Similar size (3,196 vs 3,185 sqft); Similar age (1974 vs 1978); Similar lot size (13,519 vs 13,588 sqft)
    $369,081
  • 407 Sancroft Ct, Katy, TX 77450
    3,104 sqft | $130/sqft | built 1975 | Similar size (3,104 vs 3,185 sqft); Similar age (1975 vs 1978); Similar lot size (14,025 vs 13,588 sqft)
    $402,362
  • 726 Cascet Ct, Katy, TX 77450
    3,269 sqft | $136/sqft | built 1977 | Similar size (3,269 vs 3,185 sqft); Similar age (1977 vs 1978); Lot 13% smaller (11,850 vs 13,588 sqft)
    $446,184
  • 510 Candover Ct, Katy, TX 77450
    3,000 sqft | $142/sqft | built 1977 | 6% smaller (3,000 vs 3,185 sqft); Similar age (1977 vs 1978); Similar lot size (14,860 vs 13,588 sqft)
    $427,292
  • 414 Bauxhall Ct, Katy, TX 77450
    3,328 sqft | $128/sqft | built 1973 | Similar size (3,328 vs 3,185 sqft); Similar age (1973 vs 1978); Similar lot size (12,293 vs 13,588 sqft)
    $425,590

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.

  • 20203 Cadogan Ct, Katy, TX 77450
    July-1-2026 | 3,256 sqft | $203/sqft | built 1982 | Similar size (3,256 sqft); Moderate age difference (4 years newer); Sold after the valuation date
    $660,000
  • 614 Houghton Rd, Katy, TX 77450
    August-4-2026 | 3,125 sqft | $142/sqft | built 1974 | Similar size (3,125 sqft); Moderate age difference (4 years older); Sold after the valuation date
    $445,000
  • 1919 Wine Cedar Ln, Katy, TX 77450
    May-29-2026 | 3,185 sqft | $204/sqft | built 1985 | Similar size (3,185 sqft); Moderate age difference (7 years newer); Sold after the valuation date
    $649,876
  • 615 Brenwick Ct, Katy, TX 77450
    July-31-2026 | 3,110 sqft | $225/sqft | built 1976 | Similar size (3,110 sqft); Similar age (1976); Sold after the valuation date
    $699,000
  • 702 Calthorte Ct, Katy, TX 77450
    June-5-2026 | 3,407 sqft | $167/sqft | built 1974 | 7% size difference (3,407 sqft); Moderate age difference (4 years older); Sold after the valuation date
    $570,000

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.