Interior designers mostly copy design from magazines. During design also many house owners are the one that tell what they want and the designer just put the ideas together

No, my house just basically the same. The renovation is just back extension and relocate the main door.

The TV designated location was on the West wall. So, the main sofa would be close to opposite wall (East) and the door was on the right (North). Once you open the door, you are exposed to outside world That's the main reason.

Sometimes it is hard to imagine before hand what you want to add and which is better and practical. The contractor of my previous house was good. During wiring stage, they asked me if I wanted to add more power socket or switch. The for has house drawing sketch so I could mark the point. The charge is much cheaper that adding point after the house was completed.

For my current house, I laid big 60A power cable before the extension work took place so that I have another separate DB box at the kitchen. Serve as distribution point for air-con power point for other rooms at the back and also for the kitchen. The house developer only provided the power point for master bedroom. I did the wiring with my friend and costed my 1k+. I think the contractor would have cost me about 6k

No. The house was bought before development. It was just that during each construction stage the developer sent letter to ask if you want to add power point and additional wiring. Most developers won't do this. When installing the sliding door and windows, they asked if I wanted a dark tinted glass (not film tinted). I declined, but when I got the house the glass was tinted. Get it for free

Suddenly the 2018 tered is brought to life