Having a dedicated space makes a huge difference in concentration. However, it also helps you feel relaxed in other parts of the house.

I lived long in a single space studio and worked everywhere in the flat. After a few months I ended up hating just being at home and had to work at coffee places (noisy, productivity killer).

Now I have a slightly larger flat with a designated office corner. Not only it is more convenient, but when I saturate I go to the reading corner and switch off more effectively.

I also found buying a cheap monitor and an external keyboard to plug the laptop a huge productivity improvement.