Planning Utilities
If you are going to keep the layout of a new kitchen similar to that of the old one, this will cut down on a lot of work. However, in most cases some rerouting of utilities will be necessary. The main issues to consider are outlined below.

Natural Gas or Propane
Consider whether the position of any existing gas pipes needs rerouting or adjusting. When purchasing new gas appliances, check where the connections are. In some situations, the supply pipes may need to be converted. Ask an appliance installer or other qualified professional to hook up new gas appliances.

Electricity
Kitchens are full of electrical appliances, large and small. As well as standard outlets above the countertops for coffeemakers, toasters, and blenders, large appliances may need to be connected to special outlets that run 220 volts.

Lighting should be planned to combine general illumination with directed task lighting above sinks and food preparation areas. As well as ceiling lights, wall cabinets and range hoods can have lighting installed underneath.

Once you have designed your layout, use it to plan how to reroute the electrical wiring. Any rewiring is most easily carried out after an old kitchen has been removed and before the new one is installed. In most places you can do the rewiring yourself, but always check with your local planning department or electrician.