Can some one please help for the following: We have an easement at the back of our property, I've met with a few builders/developers. Some say I can build a triplex regardless of the easement and others say I can't and that it's better off doing a duplex. I got this response from Watercorp: I can confirm that there is a 150mm VC/AC sewer main running parallel along the inside of the rear boundary and northern boundary at approx. 1.0m and is approx. 4.0m deep. The minimum distance a building can be to the centre of this sewer main is1.0m with piling and 2.5m without piling. So whose telling the truth? and given this easement..is it better to go for a triplex or duplex? Units in the area range from 415K to 430K. Really would like some honesty rather than be taken advantage of..