I can only comment about the cowhide rug idea as that's my area of expertise. Cowhide are still going very strong as a design trend, they haven't been overdone in my opinion. Also cowhide rugs break all the normal rules of standard rugs because they are an organic shape. So they visually take up more room than they physically occupy. So you don't need a cowhide rug to be as large as a wool rug. They also look better on a 45 degree angle to furniture and it is OK for one or several legs to go underneath furniture as this can anchor a group of furniture. For how to clean a cowhide rug there is some great info on my website plus a video that is really interesting.

Lower right. You don't neccessarily have to have all 4 feet of sofa on the rug, but you should have at least the front 2. You'tt probably want a more durable, washable rug because of it's location at the door. Best length would have to be judged based on door location and some sensible distance from TV -your 10 - 20 cm? Out of curiousity, what is the white box in the upper right of the room? Is it movable? If it is, it looks like your sofa could go on that wall, and a light chair (or 2) where sofa currently is. Then the area rug would be centred on the sofa, the chair legs might not be on it, and rug would be away from the patio door. Is that any better?

Can anyone tell me what the actual difference is between a "living" room and a "family" room? Also is a "lounge" room just another name for either one of the above? Thanks

Your powder room is a bit too cosy for an inward opening door. I would steal a bit of space from your bathroom. You need to be precise about your toilet pan measurements - the toilet symbol shown by the draftsperson may not be an accurate representation of the size of the toilet pan that is selected. In these types of situations, millimetres are crucial. Best of luck and remember that God is in the details, and never assume that others have checked the details. Dr Retro of Dr Retro House Calls and Dr Retro Virtual Visits via Zoom