All new residential dwellings must have a sprinkler system. We have been asked to make a decision if we want to install an irrigation system with 30 sprinkler heads now or not.Could you all provide some perspective? The purpose of the following section is to insure that the highest standards of site, building, and landscape design are conscientiously met. You will need electrical , mechanical , public right-of-way , well , septic, and fire protection permits to complete your new home construction. Licensed Engineer, Architect or Planner. 2.