If the Islands are already instanced, why not just ask for housing features added to that? I don't see the point in having an entire instance of Lavender Beds for one person to have one house in a neighborhood designed to be filled by 30 houses.

Different apartment or personal quarters sizes would be nice, maybe with or without the option of templates for different layouts of light fixtures. The biggest hurdle I've had in trying to design a room is that there's only one light fixture that can't be moved, and none of the furniture lights are even close to the same level of brightness, so if you try and create more than one "room" in a single space then the lighting is really unbalanced.

Can someone explain what "instanced" is being used to mean in this discussion, exactly?