How do I advertise this lot ?
You can advertise the lot in the same way you would a regular home. You just should be very specific about the zoning (ie: RF1 or RF3), if it is sub-dividable, and the and lot size.
You can find out about Edmonton zoning bylaws here:
Here are the infill guidelines, as well:
Lastly, here is an example of a current listing that is doing exactly what you seem to be aspiring to accomplish:
Hope this helps,