If you are thinking of building or renovating, it's important to first be aware of regulations and recommendations about sewer mains in your area.
Note: It is not permitted to build over or near asbestos cement or vitrified clay sewer mains. Mains must be replaced and new protection such as piers & beams provided. It is also not permitted to build over large sewer mains.
View our Policy for Building over or adjacent to Sewer Mains (885 KB).
Also take a look at the plans and notes on building over or adjacent to sewer mains (148.59 KB).