Just chucking around a few ideas here. Our wedding present from DH's grandad was the money for a fairly posh greenhouse. We've been waiting to put it up until more of the other buildin works are done. Now it's occurred to me that we could probably do a small 'orangery' instead - by which I mean a room with a low wall round the bottom, three-quarter length windows, and a solid roof, perhaps with a rooflight in it. It might or might not link through into the house, and might or might not have central heating.
Would one be more practical in terms of the plants than the other? I'm looking to overwinter some plants (which I currently do in the potting shed) and do seedlings, etc (which I currently do in a spare bedroom)