You should be able to use the out door kitchen all year round. Build the barbecue grill to stand up to all the seasons in your location. You want the outdoor kitchen to last. With a little extra thought you could have good storage and preparation space
When designing the out door grill [...]

If you plan on adding electricity or a gas burner you will likely need additional permits which are usually issued by your town, city, or region. Regulations may require the gas or electric apparatus to be installed by a licensed professional. So take some time to research your project.
You also have to decide [...]

Finding plans to build your own back yard BBQ can be a bit of a challenge. The best place to look is online where there are several sites with basic plans