Do I need planning permission? Post date 28/04/2020 It depends on your local council guidelines plus what and how you are planning to build? If it is just a stand-alone kitchen island with a grill you should be fine, but it is always prudent to check with your local planning department to be sure. If you are looking to install gas, power or water supply you must be aware of any existing utilities or underground obstacles. ← Where is the best place for an outdoor kitchen? → What if I want to run gas out to the site?