Don't worry I am having a proper one done
It's just I will not have many chances to see the building until a decision is made as to whether I can rent it or not
& as soon as I now I can rent it I need to start work
So I am
Measuring everything -
size & floorspace,
window sizes & positions,
doors sizes & positions,
garden (incl patio),
I'm not marking electrics as we are replacing them all
What else could be necessary?