Whatever the reason for it and whatever the size of the project, the basis is still the same. You should carefully research the goal of the project before you begin: what do you want out of it? You should also do research in order to gain inspiration into the finished elements.
You’ll also need to do some research into suppliers like the builders (if relevant); you should ask them for customer testimonials, go and see their completed work but also ask family and friends for recommendations. Technology can assist also, in the form of phone and tablet apps.
This Infographic from the guys at EZ Living breaks down some useful apps to help you along with your project and they are broken down into different stages. Check it out below.