Fixr estimates around $4,000–$13,000 for 100 sq., assuming the outdoor kitchen is being fully constructed with a new patio, countertops, storage, grills, refirgeration, plumbing, and cover. This guide shows typical price ranges in USD and highlights the main price drivers for U. The figures account for basic utilities, weatherproofing, and installation labor. Installing an outdoor kitchen costs an average of $16,000, but outdoor kitchen project costs can range from $1,400 for a small pre-made island with cabinets and a grill up to $65,000 or more for a custom, luxury outdoor kitchen complete with a pergola, pizza oven, and full set of cabinets. Installing an outdoor kitchen costs $7,000 to $35,000 on average. Outdoor kitchen prices are $1,500 to $6,000 for BBQ island kits with DIY. For the most accurate price quote, try our FREE outdoor kitchen cabinet design service. These outdoor kitchen cabinet projects were all custom. Though it's impossible to provide a firm answer regarding the cost of outdoor kitchens, we'll try our best to give you at least an idea of what you should expect your project to cost.