LEGO Building Systems

40505-1·Promotional·2024·271 parts

Used Avg

$102.60

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New Avg

$102.60

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About LEGO Building Systems

LEGO Building Systems (40505-1) is a LEGO Promotional set from 2024. There isn't enough recent sales data for a reliable price estimate.

Parts (271)

Plate 3 x 3

×16

Minifigure Footgear Roller Skate

×4

Minifigure Footgear Roller Skate

×3

Minifigure Footgear Roller Skate

×5

Minifigure Footgear Roller Skate

×13

Common questions about LEGO Building Systems

How much is LEGO LEGO Building Systems (40505-1) worth?

LEGO Building Systems sells for an average of $102.60 new/sealed on BrickLink based on 6 months of completed sales. Current retail availability may affect secondary market prices. Actual prices vary with completeness. Missing minifigures or key parts will lower the value.

Is LEGO LEGO Building Systems (40505-1) retired?

LEGO Building Systems was released in 2024. It may still be available at some retailers, but check availability. Retirement could be approaching.

How do I check if my LEGO Building Systems set is complete?

Use the parts list on this page to check every piece. For the minifigures specifically, you can use the brick'em scanner to identify each figure from a photo and confirm it matches what should be in this set. Missing pieces can be individually sourced on BrickLink.