LEGO’s biggest set yet leaks with 12,000+ pieces

LEGO may release its biggest set yet, with leaks pointing to a 12,000-piece Sagrada Familia build

LEGO may be gearing up to release its largest set ever, as new leaks suggest a massive build with over 12,000 pieces is on the way.

According to reports from Brick Tap, the rumored set is an LEGO Architecture model of the iconic Sagrada Familia in Barcelona. If accurate, the set would include around 12,060 pieces, surpassing current record holders like the LEGO World Map and the Eiffel Tower set.

The biggest Lego set ever created has reportedly leaked and has over 12,000 pieces

The set is based on the Sagrada Familia pic.twitter.com/c6IDHdQxDd

— Dexerto (@Dexerto) March 24, 2026

The real-life basilica, originally designed by Antoni Gaudí, has been under construction since 1882 and is not expected to be completed until 2034, adding to the appeal of recreating it in brick form.

The leaked set is rumored to launch on July 1 with a price tag of around $600, though nothing has been officially confirmed by LEGO. If true, it would mark one of the company’s most ambitious, and expensive, builds to date.