Firstly I work in a geographic area that is cut into too many municipalities and they all differ on planning and zoning drastically !
I have worked in small lots of 3500-4000 sf in a few districts.
One here has just initiated lots of 221 sq metres , 2400 sf ! !
Front yard (primarily parking) is 30'x15' Rear yard 30'x18', 4' to sideyards..
Can barely get a typical typical townhouse plan on it... Might as well just stick em together and call em rowhouses.
What size lots have you in your territories ?
Ron in BC