It is suggested that you meet with your own pertinent professional (zoning/realty attorney, surveyor, engineer, contractor, etc.), then check with the Zoning Officer, Building Inspector, and Planner. The Zoning Ordinance has specific uses it allows in each zoning district. Don't interpret the ordinance yourself. Be sure the Zoning Officer agrees that the use you propose for a given location is permissible and is able to be supported by proposed parking or other accessory uses you need. Then, check with the Planner to ascertain if your project will be subject to the planning process and if additional water and sewer charges will be applied. These charges can be higher than you might expect. You won't want to be surprised. Finally, check with the Commercial Building Inspector to learn whether you will have to make significant upgrades to the building you propose to occupy. Required renovations can be very costly. Find out what they might be before you are committed to the occupancy.