This is the front left corner of the shed.
This is the back elevation
Now after just one hour here is what I have achieved.
What I am proposing to do is brick the front road elevation up completely and then I have been given a plastic door and frame for the end elevation. I have a plastic window for the back elevation so I will need to brick up to the cill height and then fit the window. On the inside I am going to take the green frame out and block up the wall with a doorway leading into the greenhouse. The greenhouse will have a new frame put on it once I have finished the shed.