Backward leaning lean-to greenhouse might have advantages.
I recently got free glass and made a greenhouse with it (not yet complete) Due to the number of panes and height of panes I made a backward leaning leanto close to a fence at the best location for eastern morning light. It is on the south facing side of a fence that goes east west. BUT after making it, I looked at google images of leanto greenhouses and there is NOTHING that slopes back in that manner among the images. (Which I think is kinda weird). The neat thing is that the backward sloping roof helps bounce a bit more of the light away at midday (helps prevent overheating) but is angled so that the summer evening light comes in nicely through the roof . Sun sets in north west in summer so it comes in over the fence in the evening.
Anyone want to check it out? A forward sloping greenhouse near a typical victoria fence would be ideal for a person who is about 4 ft high. There are height restrictions. Anyway, I came up with this by accident, probably it will be useful to thousands of people. http://www.youtube.com/watch?v=Pd9xQiZxKlQ
I will add more pictures and some diagrams as the project progresses.