Calculate floor area ratio and exceedance correctly

Hello everyone,

I think I once read a corresponding explanation / calculation here, but even after hours of searching I can't find it again. Therefore:

according to §19 Baunutzungsverordnung:
....
(4) When determining the ground area, the ground areas of
1. garages and parking spaces with their access roads,
2. ancillary facilities within the meaning of § 14,
3. structures below the surface of the terrain, through which the building plot is merely underbuilt,
must be included. The permissible ground area may be exceeded by up to 50 percent by the ground areas of the facilities designated in sentence 1, …

=>

[*]The base of L-walls / L-stones for slope stabilization ("through which the building plot is merely underbuilt") must therefore be included!?
[*]In case of an exceedance of the floor space index ("up to 50 percent"), ONLY "the facilities mentioned in sentence 1", i.e. ONLY garages, parking spaces and access roads are to be counted (no paths, garden houses, bollards… for example)?
[*]Terraces belong to the main building and must (according to an old post here) always be applied for? (even if they are allegedly not going to be built, because the floor space index calculation is already at the upper limit, or only lawn is drawn at floor-to-ceiling terrace doors.)

Thanks in advance!

So the base of L-walls / L-stones for slope stabilization ("through which the building plot is only underbuilt") must be included!?

Strictly interpreted according to the regulation text, yes, but I have never done that myself nor have I ever seen anyone do it.

the installations mentioned in sentence 1

Sentence 1 ends at the period after "must be included". So it doesn’t just mean point 1, but all three points.

paths, garden houses, polls…

I don’t know what polls are, but paths and garden houses fall under §14.

Terraces belong to the main building

Yes.

and must (according to an old post here) always be applied for?

No. If you don’t want to build any, you shouldn’t apply for any either. Which old post?

I don’t know what Polls are,

I think those are Pools.

Oh sorry!

[*]for the typo! It should have said Pools.

[*]I had confused the old post and found it in another forum.
[*]according to 1. Garages and parking spaces with their driveways, => Driveways are not parking spaces and are not considered as such. (If, for example, 2 parking spaces / residential unit are to be proven, then possibly 1. the garage with driveway and 2. an additional separate parking space must be created!)?

The above sought calculation was however here in the forum.

Driveways are not parking spaces and are not considered as such.

This does not apply universally and depends on
state,
municipal parking space regulations,
specific regulations in the development plan.

If, for example, 2 parking spaces per residential unit must be provided, then possibly 1. the garage with driveway and 2. an additional separate parking space must be created!

I do not understand what you are getting at. Is it still about preventing the construction project on the neighboring property?

But the above-mentioned calculation was here in the forum.

What exactly are you looking for? I have done some calculations here:

Floor area ratio I: Residential house + terrace = 120m² + 28m² = 148m²; 148m² / 668m² = 0.222 < 0.3 => fits
Floor area ratio II: Floor area ratio I + roof + carport + tool shed + driveway = 148m² + 11m² + 33m² + 12m² + 80m² = 284m²; 284m² / 668m² = 0.425 < 0.45 => fits

or here:

Floor plan I = 10m * 11m = 110m²
Floor plan II = Floor area ratio I + garage + driveway = 110m² + 22.44m² + 37.70m² = 170.14m²
Floor area ratio I = 110 / 365 = 0.30 allowed 0.3
Floor area ratio II = 170.14 / 365 = 0.47 allowed 0.45

First of all, it must be checked which version of the land use ordinance is applicable.