I need a proffesional looking plan to presnet to the council, I have attached the files made with a simple floorplanner app. You will see that compared to the current floor plan, there's an extra floor, this is the loft conversion, the walls need to be angled, like a double lean-to roof.
There are also changes to the staircase, ideally this would be a spiral or a compact staircase (as the current one is very steep) and to the loft a smaller spiral staircase.
The extension would be ideally made of brick, with two large windows and a bifold door to the garden and the flat ceiling should have large windows, sky light style. I would also like to have a separate plan with this same extension made as a glass box, with structural glass walls and a pitched ceiling (the corridor would be a lean-to ceiling) and the kitchen/dining will be a pitched roof ideally.
I do not need the furniture to be placed, but it would be a nice detail in order to get an idea of the overall space.