Is a bungalow possible? What speaks against a bungalow?

Wasn't there a difference for determining the buildable area depending on whether it is the house or outbuildings/driveway/terrace? I thought there was a 50% surcharge for outbuildings/terrace and driveway. I'm just not sure anymore if that depends on the federal state.

I thought there was a 50% surcharge for outbuildings/terrace and driveway. I'm just not sure anymore if that depends on the federal state.

I'm not even sure if it is uniform across the country or if it can vary depending on the development plan. But yes, you often read about this surcharge, and it would be the saving grace here (or rather, it would make the difference between needing 900 sqm or only 600 sqm).

Is actually regulated in the Land Use Ordinance, so not regional. Exceptions are presumably proportional crediting of permeable paving or similar (then according to the development plan).

It is actually regulated in the Baunutzungsverordnung, so not regional.

Ah yes, that would be uniform nationwide.

Exceptions are presumably proportional crediting of permeable pavement or similar (then according to the development plan)

Exactly, that is at least municipality-specific, but can differ again there by development plan.

It is actually regulated in the Baunutzungsverordnung, so not regionally.

Then it is clearly stated there.

§ 19 Floor area ratio, permissible floor area

(4) When determining the floor area, the floor areas of
1.
garages and parking spaces with their driveways,
2.
ancillary facilities within the meaning of § 14,
3.
structural installations below ground level, which only underpin the building plot,
must be included. The permissible floor area may be exceeded by up to 50 percent due to the floor areas of the installations specified in sentence 1, but not beyond a floor area ratio of 0.8; further minor exceedances may be permitted. Deviating provisions may be made in the development plan from sentence 2. As far as the development plan does not specify otherwise, in individual cases, compliance with the limits resulting from sentence 2 can be waived
1.
in the case of exceedances with minor impacts on the natural functions of the soil, or
2.
if compliance with the limits would lead to a significant impairment of the appropriate use of the property.

in individual cases, the compliance with the limits resulting from sentence 2 may be waived

... practically means that the approval authority can grant exemptions.