Posted: 05/05/2015 at 15:37
Well, I have what I call a Garden Room. It is an extension with lots of windows and roof lights. I can use it every day of the year. Conservatories are either costly to heat or unusable either because it is too hot or too cold. Take care there are lots of sharks pretending to be nice people out there.
Visit some of your friends and see what they have. Might French windows serve your purpose?