We start our list with the Disney Castle which contains 614 unique bricks.

As one of the smaller sets from our original top 30 largest LEGO sets, the Disney Castle has a great amount of variation with lots of the interior bricks used only one or two times.

Releasing in January 2022, but falling short of our top 30 biggest LEGO sets, is the new LEGO Creator Boutique Hotel.

With 635 unique pieces, this set offers a lot of variety and variation with its interesting iron shaped hotel build.

The largest of the LEGO Creator sets designed for the 10th anniversary of the Modular Buildings has 645 unique pieces.

Often heralded as the best of the modular buildings, this set is full of variation with stores including a bakery, florist, musician, dentist and café, as well as a photo studio and dance studio.

The latest LEGO Star Wars UCS set has 657 unique parts.

The giant walker requires around 800 Technic connectors to hold it together!

But there's still lots of unique parts in here, including a single pink brick that LEGO designers try to hide in many of the Star Wars sets in return for cake.

Despite being the largest LEGO Star Wars set, the Millennium Falcon has 676 unique pieces. This is in part thanks to the sheer number of Technic connectors that are used to keep the giant spaceship together, and partly due to the amount of grey.

Still, the grey is broken up with maroon and tan pieces, and the build never feels monotonous.

If you speak to anyone about their experience of building the Titanic, they will probably mention the portholes. Let's just say there's a lot of them.

But with 9,090 pieces, there's also a far amount of variation. The LEGO Titanic includes 692 unique parts.

With 3,955 pieces, Home Alone sits fairly low on our top 30 biggest LEGO sets list - but it sits high up on this list with 739 unique pieces.

To look at the Home Alone house, you may be wondering how this is possible - the brown exterior walls do make up a lot of the larger brick quantities in the set (143 brown 2x1 brick pieces anyone?). But there are a ton of single quantity unique bricks that make up the interior of this build.

There are 920 unique brick types in the 4,873 brick NINJAGO City set.

The unique look and feel of the city with each floor representing a different age and time helps ensure there is lots of variation in brick and a ton of variation during the build. Even if you're not a fan of NINJAGO, there is a lot to enjoy here!

Diagon Alley is our first LEGO set to hit the 1k mark in terms of unique parts - with 1,013 unique pieces.

That must be in part thanks to the modular structure of Diagon Alley's four buildings which can be treated as four completely separate LEGO sets.

LEGO Fans often say NINJAGO Gardens is one of the best LEGO sets to build, and it's not hard to see why when you count its unique parts list. There are a whopping 1,125 unique pieces in this set.

That's not to say there isn't any repetition. As with the other NINJAGO City Modular sets, this set also sits on a base of water which consists of 328 translucent blue tiles. But after these first steps, you'll soon be building a unique and colourful structure!