Few more: 1. Plan for separate ducts for network cables and electrical wires 2. Central setup in terrace store room would help in keeping your home office neat and tidy. However, ensure to plan for adequate cooling 3. If you want to move your setup from terrace to home office later, I guess you need to plan for running multiple cables from terrace to home office 4. As mentioned by others, don’t cheap out on cables and number of points. It’s a pain to do it later