There are many factors that go into starting a business. There are products, marketing, finances, location, and most importantly licensing and permits.
Before your can hang your shingle there are a few things you need to take care of first. Kitsap County has a great resource outlining some of these factors like licensing and your Certificate of Occupancy.
Whether you are in the County or within the City limits, these are things you must keep in mind before you can open your doors.
Check out the County resources here.