peter eade

In order to submit a planning application you will require 1:100 scale drawings of the proposal, these would be the four elevations of the house and floor plans of each proposed floor. In addition you will need site and location maps showing where you intend to build the house. Subject to where you are located you may also need a design and access statement. If there has been an earlier planning application made and you do not intend making any significant changes to the design it's probably easiest if you copy and paste the plans off of the planning website and then get your architectural designer to redraw the whole thing. This redraw would not take more than eight hours to complete, so the cost would be whatever your designer charges for a days work. The location plans and maps can be downloaded from get mapping or similar websites. I notice you say you are engaging an architectural engineer... in my forty years of construction experience I've never heard of such a job title.