Is a permit needed for installing security bars on a window?

A permit is required for security bars to be installed on a bedroom window, but not on other residential windows. However, in either instance, the Planning Division requires a floor plan to show the sizes and locations of all windows and windows on which a security bar is to be installed. 

If the security bar is to be installed at a place of business, a floor plan of the store or office is required. It must show sizes and locations of all windows, which windows will have security bars, and placement of the bars either on the interior or exterior of the building. The Planning Division must approve the floor plan if the security bars are to be installed in the interior of the building; the Design Review Board must approve the bars if they are to be installed on the exterior of the building.