I will be getting keys to my inter terrace in Aug 2012. I already know what I want to do, mainly 1. Repaint all interior and exterior walls 2. Replace all floor tiles in living and dining room 3. Replace all parquet 4. Redo all toilets (2 normal ones, and 1 small one with WC only) 5. Replace kitchen cabinet doors and drawers (don't like the colours) 6. Some minor stuff like extra wiring and installation of ceiling fans (not sure if it's feasible as whole house has false ceiling), installation of cooker hood, etc In such a scenario, do I need an ID? Do I need a contractor? Or is it better for me to engage separate contractors for each piece of work? Thanks and appreciate all advice.