The 15-year-old, who attended Woden School, died after complications associated with his muscular dystrophy last June.

One of his teachers, Angela Payne, was in the United States when she found out.

"It was quite unexpected," she said.

"We'd had a really great year and Mark was planning on transitioning to Canberra College.

"He wasn't required to but he was making a very brave effort to transition into the mainstream."

When Ms Payne arrived back in Canberra, she found the entire school had come together to support each other and Mark's parents, Owen and Chris, while preparing a beautiful memorial service.

"I and the other teachers really wanted to do something to honour the time that he spent here and the experience that we'd had with him," she said.

"He was a very creative student. He was really good at art and he loved Lego.

"We thought we'll see if we can put together an annual event that would support muscular dystrophy and support our memory of him."

That's where Canberra's governing body on all things Lego, Bricks Enterprises, which runs the immensely popular Brick Expo, came in.

After Ms Payne contacted these Lego aficionados and, despite the organisation's packed fundraising schedule, the group committed to support the event.

"It looks like there will be about 20 exhibitors on board, which is a fabulous result," she said.

The result is the family friendly Bricks @ The Woden School Lego expo and competition.

All money raised from the event will go to the Muscular Dystrophy Association and support students with special needs.

Ms Payne said a range of sponsors had also come on board and there was a great deal of in-kind help to get the event off the ground.

Along with Lego displays, there will be a sausage sizzle, food, coffee stalls and plenty of fun activities for everyone.

The event takes place at The Woden School, Denison Street, Deakin, on Saturday, March 14, from 9am.

For more information about the event, call 6205 5966.