Shell form ap apartment

The building where I bought my apartment is still under construction. I want to make some changes that will make my apartment different from the actual plan. For example I want to change the entrance doors. They are situated inside the building and they are not visible from outside. Can I do the changes like that without asking the developer? What changes I can do without the process of accepting by the other authorities like the main architect etc?

Any change in structural layout needs planning approval.

Some like slightly moving a door might only need a retro filled notification of variance but in general if you change structures you have to go through the whole process.

Suggest you ask the architect who can advise you

Thank you.