Planning Drawings: Warehouse Extension

I’m taking my 18 m × 18 m steel-portal warehouse and adding a matching 18 m × 18 m bay across the front. To secure planning consent I need a clean, professional drawing package—nothing construction-level yet, just the material the council expects for validation... (Budget: €250 - €750 EUR, Jobs: 3D Modelling, 3D Rendering, AutoCAD, Building Architecture, Building Design, Construction Management, Drafting, Structural Engineering)