That is gorgeous Lin. I have a room like that off the kitchen but it is small 12 x 12 and because my kitchen is small I use it as a dining area. I call it my morning room because it is where I go every morning with my cup of tea.
I like the idea of having a room with all my plants and a place to sit because we have such harsh winters. When they came out and measured and gave me a price for the room I was shocked at how reasonable it was. compared to the prices I had gotten to build the greenhouse.
It comes mostly pre-assembled and because they do not have to do a foundation because it is over the garage it really cut the price. The heating is was going to be easy because it is on that side and there was already a door that leads to the roof of the garage. I think the previous owners had planned to do a deck over the garage so they put a door leading from that bedroom to the garage. There are so many things that are in place that is making this option so cheap.
This is a pic before I dropped the trees on that side. Over to the left over the garage is where it is going.