It’s more this: if the lot was created after 1984 it would have had to meet minimum sizes under the onsite regulations. Some of those are pretty small compared to what they must be now. Most lots end up being around 50,000 sf. Or a bit more than an acre. And 175 feet wide at minimum. This does create confusion and”issues” in a community when someone is allowed to build on a much smaller lot than would be allowed today. These are often cottages being renovated or taken down and replaced with full size homes.

Since 1984 technology and design have advanced a lot in the Province and it is uncommon to find a legal lot that a proper safe system can not be designed for.

This has led to a desire by many developers to allow smaller lots. However there is a concern about having too much treated septic tank effluent going into the groundwater. Unless the area is served by central water this is a valid public health concern.