How Long Does LEGO® Bikini Bottom Undersea Party (3818) Take to Build?

A typical builder finishes LEGO® Bikini Bottom Undersea Party (set 3818, 471 pieces) in about 1 hour 10 minutes. Taking it slowly runs closer to 1 hour 35 minutes; building at a fast pace, about 55 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.