ᐅ Setback area, flat roof, building permit (also known as planning permission)

Hello everyone,

I have a question regarding setback distances and hope someone can help me.

Our three-story house with a flat roof, as shown in Image 1, was not approved because the setback distance could not be maintained as planned.

Therefore, the wall on the third floor was set back to meet the required setback distance. See Image 2.

Now, the roofer wants to build the roof so that it extends beyond the wall instead of aligning flush with it. See Image 3.

In my opinion, this would violate the setback distance again, as indicated by the red line in Image 3. Or is the setback distance still maintained since it is measured from the wall, as shown by the green line?

I hope I have explained myself clearly and that someone can answer my question.

Building regulations are subject to regional authority. So, which federal state is it?

What does the zoning plan specify regarding boundary setbacks? Up to which point are these defined?

Is there a building permit in place or is the shell construction already completed? What does the site manager say?

Eaves, gutters, window ledges, plinths, and similar elements are always disregarded. Balconies, bay windows, etc., are also excluded as long as they do not exceed a certain proportion of the wall area.

Scout schrieb:

Building regulations are managed at the regional level. So, which federal state is involved?

What does the zoning plan specify regarding setback distances? How are these defined exactly?

Is there a building permit in place or is the shell structure already constructed? What does the site manager say?

Sorry.

The house is being built in NRW.

The shell structure is up with the inset wall as shown in images 1 and 2.

Therefore, the setback area (height x 0.4) has been observed.

The roof will be installed soon.

The site manager thinks it is fine.

However, I am not so sure and am asking here for advice.

Mottenhausen schrieb:

Roof overhangs, gutters, window sills, plinths, and similar elements are always disregarded. Balconies, bay windows, etc. are also excluded as long as they do not exceed a certain portion of the wall surface.

Thanks for the reply.

A roof overhang can’t be excessively long either. Is there a general guideline for that?

No general guidelines, but specifically defined maximum dimensions. You need to check your national building regulations, which are usually freely available online on the authorities’ websites.