A2: C Develop
By the end of your development pages, your design should meet all your spec points, each stage of development should slowly tick these off. Your final design must look significantly different from the first development page, and you HAVE TO include design elements from previous designs. The Writing Frame Guidance can be found here.
Links: Types of Roof | 10 Types of Roof | Roofing Materials and Styles | Choosing Render | Exterior Finishes | Cladding for Buildings | Facades and Interfaces (Technical) | Types of Cladding | Green Living | Energy-Efficient Home | Kevin McCloud’s Green Home Tips