Planning a scrap space

I'm really excited about the impending renovations/extension of my home and the inclusion of a scrap room!!  I have a draftsman coming for an appointment tomorrow to discuss what I want and design all my ideas for me.  It's going to be a huge job.  We are basically doubling the size of our home which for 6 of us is just too small now.

I've been researching some scrap spaces and my head is overflowing with ideas and wish lists!  It's not going to be an overly big area and I really like the idea of having it all hidden behind cupboards so I can just close the door and it's instantly "clean" and beyond the reach of curious little people.