Detached house residential units, development plan...

hello

I have a question about our development plan.

it states:

- Construction method for general residential areas: only single-family houses permitted according to §22 paragraph 2 of the Land Use Ordinance

Extent of structural use, construction method:

2.3 In general residential areas, a maximum of two apartments per residential building are allowed. Buildings that are predominantly used for residential purposes are also considered residential buildings.
2.4 In general residential areas, a maximum of one dwelling unit per started 1000 m² of land area is allowed in residential buildings.

Now a neighbor has created a granny flat, another is even obviously building a townhouse with 2 residential units (2x exactly the same floor plan, utility room directly accessible from outside, etc.). NO property reaches 1000 sqm, the largest property in the residential area is 900 sqm.
So how can someone be allowed to build something like this? I find it hard to imagine that someone just does this on their own authority or that the office is being fooled. Where is the catch that makes this allowed?!

In case of doubt, this can be really expensive, since it can't just be changed that easily.

Nobody can say anything about that? I am actually very capable of reading DIN and other strangely formulated things. Nevertheless, I don't understand how someone can include a granny flat in such a development plan, let alone obviously put up a two-family house (with one front door). And while we're at it, how can the utility room, which is being built outside in front of the house, be placed directly up to 1cm from the neighbor's private path (3-meter boundary construction?)

Good evening,

Where's the trick that something like this is allowed?!

I would guess an exemption from the development plan.

quite obviously a two-family house (with one front door).

Then the internal layout is, in my opinion, divided according to the condominium ownership act (WEG). That is a "trick" often used when two-family houses are not allowed according to the development plan.

and while we're at it, how can the utility room, which is built on the outside in front of the house, be built directly up to 1 cm from the neighbor's private path (3-meter boundary construction?)

Either also an exemption from the development plan, mutual building burden, or the utility room was applied for as a completely normal garage in the building application.

Why are you even interested in this?

Rhenish greetings

I would guess exemption from the development plan.

I rather doubt that. Those who impose such strict restrictions do not simply grant exemptions. Normally, development plans require a maximum of 2 residential units; why the restriction is based on the plot size here, where no plot is larger than 1,000 sqm, is probably known only to the building authority.

It really seems to be about the WEG division, because it exactly overrides the two regulations. But you have to know that first. The building authority does not issue any special exceptions, because basically everything you want is allowed. Single-family houses were explicitly required, there isn't even a semi-detached house here. And now, after 2 years and 60 out of 90 built single houses, someone comes along and cheekily builds a two-family house there.

Why is that cheeky? He will have found a way and it probably doesn't bother you either. So why bother worrying about other people's business?