How Long Does LEGO® LEGO Design Seminar Set 2025 (40231) Take to Build?

A typical builder finishes LEGO® LEGO Design Seminar Set 2025 (set 40231, 175 pieces) in about 25 minutes. Taking it slowly runs closer to 35 minutes; building at a fast pace, about 20 minutes.

PieceTick estimates build time from piece count, part complexity, the set’s age rating, your experience level, and how you sort pieces. Adjust those on this page for an estimate matched to how you build.