ᐅ Is the construction of a duplex allowed?

Good morning everyone,

I have a question about the zoning plan. What exactly does it mean?
We would like to build a duplex. Is that allowed there?

"A maximum of one dwelling unit is permitted in each residential building. A second dwelling unit may exceptionally be allowed if it is subordinate to the first unit."

Without knowing the complete development plan, the question cannot be answered. There is a lot of confusion between common language, planning law, and building regulations regarding the terms duplex, semi-detached house, single-family house, residential building, and dwelling unit.

You probably want to build, from a planning law perspective, a single house that consists of two attached residential buildings on one plot. The quoted sentence does not exclude this.

Escroda schrieb:

You probably want to build a single-family house according to planning regulations, which consists of two adjacent residential buildings on one property. The quoted sentence does not exclude this.

Zinada1 schrieb:

"A maximum of one dwelling unit is permitted per residential building. A second dwelling unit may exceptionally be allowed if it is subordinate to the first unit."

Zinada1 schrieb:

A couple of friends contacted us recently; they would like to build a semi-detached house together with us.

Effectively, I see that you will need to keep looking. If you really believe you can find something faster together with the other couple, then specifically look for D or E/D designated plots. However, I think you should also consider searching for developer projects.

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Zinada1 schrieb:

A second residential unit may exceptionally be permitted if it is clearly subordinate to the first dwelling.

Well, if one half is 250m² (2,690 ft²) and the other is 90m² (970 ft²), the "subordinate" condition might work.
What does the zoning plan say about semi-detached houses on separate plots? In that case, you would "only" need to acquire two adjacent plots.

Hmm… I understand it as an area designated for single-family homes, and if someone wants to build two residential units, it would be more in the direction of a secondary apartment. So, a house plus a smaller dwelling unit in the attic or next to it.

Yes, that’s how I read it as well, at least for one plot of land. The interpretation of "subordinate" is certainly open to discussion.

However, I don’t see any specification regarding a semi-detached house on one plot or one semi-detached house on two plots. In the case of party wall construction (semi-detached house), it involves two residential buildings that are built attached to each other.