Building boundary distance at the front door canopy

Lol... is this going to be an endless loop?
That is exactly what it means.

I just wanted to make sure I understood that correctly

Not necessarily, quote paragraph 1 again and not just the more convenient paragraph 2
Using my phone is too annoying right now, hence my laziness

Roof overhangs and cornices by no more than 0.50 m,

In my opinion, this is to be understood as meaning that you are not allowed to build the full length of the roof overhang beyond 0.50 m; up to 0.50 m the outer wall counts, and above that the outer edge of the roof overhang counts as the fixed point for measuring the minimum setback distance of 3 m!