It would be inadvisable to put a built-in outdoor grill against the house. The CPSC recommends using any grill at least 10 feet away from the house or any building or structure that could catch fire. So, keep the built-in grill away from the side of the house to prevent fire hazards. Built-in outdoor grills can be built into a patio or kitchen island on the patio, though. These outdoor kitchen islands containing the built-in grill can be beautifully done. Many of them are built out of either stone or brick and can match the design of the house or the patio beneath it. There are many styles of built-in outdoor grills. Go for a rustic look if you like the classic, earthy feeling. Or, you could style your outdoor kitchen in a chic, contemporary fashion with granite tops and a minimalist appeal - try to match your built-in grill to the style of the rest of your patio, house, or outdoor kitchen for a consistent design.