How much is LEGO Belle Bottom, Kevin and Bob worth?
Set 40421-1 · 309 pieces
$29.99
new / sealed
$18.06
used
+50%
vs $19.99 RRP
$0.10
per piece
LEGO Belle Bottom, Kevin and Bob (40421-1) is worth about $29.99 new (or $18.06 used) at current secondary-market prices, up 50% from its $19.99 retail price.
Value history
Value historytracking since Jul 27, 2026
Currently $29.99 new. We just started tracking this set’s value. The chart fills in as prices are re-checked over the coming weeks.
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