Some fans of the famous plastic bricks camped overnight to be among the first into the store attached to the theme park.

Initially slated to open in November last year, the opening date had been pushed back to January 28.

Dreamworld chief executive Craig Davidson said the delay was a great way to make a fresh beginning in the new year.

"We stopped all construction for the whole time we were closed. It worked out well, it was a great way to start the year," Mr Davidson said.

Dreamworld shut its gate for more than a month after a malfunction on the Thunder River Rapids ride led to the deaths of four people in October 2016.

The store will employ 20 staff to help budding builders of the iconic Danish toys.

It will also feature 10 life-size Stormtroopers and the Incredible Hulk, all made with Lego.

"It's going well, there has been a massive response, we had people camping out in the car park."

Mr Davidson said the Lego Store was the start of a new precinct that would include a Kodak photography store, a Jelly Belly jelly beans store and more food and beverage shops to be ready by April.

Lego head of marketing in Australia Troy Taylor said the seven-month build covered 350 square metres and took more than 50 construction workers to build.

The store would offer fans and those new to the bricks a chance to find the newest and some of the more rare Lego sets.

Among other features is the chance to make your own Lego Man or Woman and for those with more particular tastes, a wall with thousands of individual bricks to pick from.