Knights Challenge #1584 — LEGO Castle Set Value
LEGO CastleWhat the Knights Challenge #1584 LEGO set is worth — loose, complete, and sealed.
Knights Challenge #1584 value — Loose $140 · Complete (CIB) $162 · Sealed (new) $1,710. Prices updated August 2026.
Monthly CIB value, based on sold comps.
See the actual sold listings on eBay ↗Live on eBay right now
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Price data verified against · 1
Item details
- UPC / EAN
- 5702010915842
- Brand
- LEGO
- Theme
- LEGO Castle
- Set number
- #1584
- Release date
- January 1, 1988
Knights Challenge #1584 (LEGO Castle) resale value
A loose Knights Challenge #1584 set runs around $140, a complete copy (all pieces + box + instructions) about $162, and a factory-sealed box commands $1710.
What drives the price
Retired sets, completeness (every piece + minifigs + instructions + box), and sealed condition drive LEGO value. Exclusive sets and discontinued themes appreciate the most; minifigs alone can carry significant value.
Price guide
What this actually trades for — sold values by condition vs. what sellers are asking today
| Condition | Value | Based on |
|---|---|---|
| Loose | $140 | eBay sold comps |
| Complete (CIB) | $162 | eBay sold comps |
| Sealed (new) | $1,710 | eBay sold comps |
| Live asking — low / typical / high | $2.95 / $15.99 / $175 | 20 live eBay listings ↗ |
Market check: As of July 18, 2026, 20 live eBay listings ask $2.95–$175.00 (median $15.99).
Frequently asked questions
- What is the best value condition for Knights Challenge #1584?
- For the best balance of value and playability, the Loose condition at $162 offers a great entry point.
- How much is a sealed copy of this LEGO set worth?
- A brand new, sealed copy of Knights Challenge #1584 is currently valued at $1710.
- Can I get this set for less than $332?
- Yes, the set is available loose for $162, which is significantly less than the Complete in Box price.