In a word? Extremely!
Without a plan, you are going in hoping for the best. You want to avoid doing this as much as possible, as it can often lead to mistakes. The main benefit of floor plans in any housing design is accuracy. It lets you know where each room will be and the right dimensions. This ensures that your home is in proportion and that each room is given the right amount of space.
You should, therefore, always make sure you hire a specialist in floor plans. These are often designed in 3D, taking your ideas and turning them into something different. You could even have 2D plans drawn up and then given to a construction team. Either way, only start building with detailed floor plans!
