ᐅ Concept Development / Construction Project

Hello everyone,

We own a plot of land in North Rhine-Westphalia (NRW). It is about 11m (36 feet) wide at the access side and approximately 40m (131 feet) long – basically a “narrow strip.” The neighboring property belongs to my sister-in-law and was built on some time ago with a prefab house directly on the boundary line to our plot.

Currently, we have the following questions:
- According to my sister-in-law, the house can and (presumably) must be built against “her” exterior wall. Could you provide a rough estimate on this, or is it regulated by the building permit/planning permission from the local building authority?
- Are there prefab house suppliers that can build directly against an existing exterior wall?

The information is a bit sparse at the moment, as we have only recently started thinking about building a house. Maybe you can help us move forward a bit 🙂

Thanks in advance.

Best regards (still from the South)

Any reputable builder should be able to extend an existing house. After all, quite a few terraced and semi-detached houses are being built.

Whether you need to add an extension depends on the development plan. If an extension is required, it will say "closed development" there. You can obtain the development plan from the local authority. Your sister-in-law should also have it somewhere in her documents 😉

I think you’ve already answered the question yourself 😉

The zoning plan will tell you whether you have a building boundary next to your sister-in-law’s house or not, and whether there is a building on the other side of the plot.
Then you can see which building zone you are allowed to use.

If you want to build there, you will definitely find a company for the job. It’s basically like a typical semi-detached house. These are available in all kinds of construction methods.

Prefabricated house = timber frame construction?

grund_nrw_bb schrieb:

The adjacent neighboring plot belongs to the sister-in-law and was built some time ago with a prefabricated Allkauf house directly on the property boundary of our lot.

Then either single-family or semi-detached housing will be specified, and the sister-in-law has decided together with you to build semi-detached houses; or you would have had to agree to transfer setback areas and have this recorded in your land register entry. In the latter case, an 11 m (36 feet) wide lot could only be built up to about 2 m (6.5 feet) wide (slightly less in Baden-Württemberg).

WilderSueden schrieb:

If an extension is mandatory, it states “closed development” there.

No – also single- or semi-detached housing is marked as “o”.

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https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/

11ant schrieb:

No – E/D is also “o.”

But then the duplex must be built on a single lot, not on two separate ones, right?

Hello everyone,
great to see such quick and detailed responses.

We will now focus on the zoning plan / development plan – everything else will follow from that.
The building method for the house has not been decided yet – I am a strong supporter of solid construction (it’s possible that my sister-in-law’s experience during her build will influence this 😉

Thanks again.