Lean To conservatories originate from greenhouses built against south-facing walls, which allowed for a maximum of sun and shelter against cold winds from the North. Today they are probably the most desired home improvement, as they extend naturally the living space of a house.
Lean To conservatories allow for the most simple design, and, because at least one wall less is needed, they save a substantial amount of material and work, which has a significant impact on price. If you are looking for rather cheap conservatories a Lean To will be the first choice. In addition, close to the house facilities like heating and electricity or water are normally available, which will bring the installation and maintenance costs down. Less blinds may be needed, heating will be a lot cheaper. In many cases planning permission is easier to obtain or, up to a certain size, not even required. Lean To Greenhouses can improve the energetic balance of a house, providing additional shelter and wind protection and catching the sun light during the the colder times of the year. They can serve as greenhouses, living or dining rooms and even as kitchens.
The purpose of your Lean To impacts its design. Do you want to keep comfortable temperatures all the year? Floor heating and insulative double glazing should then be planned right from the begin. If you mainly want space for your non-hardy plants during the winter and a place to enjoy the sun in late autumn and early spring, just keeping it frost free is sufficient. A stone rather than a wood floor may then be recommended though.
