ᐅ Complete duplex with a separate granny flat/apartment. What are the base and eaves heights?

Hello everyone,

We are planning to build a complete semi-detached house with a granny flat.
Now, one provider is telling me that this is not possible because of the plinth height (0.5m (20 inches))?

Could that be true?
The eaves height would be 6.5m (21 feet) or 12m (39 feet) available.

Thanks for your help and ideas.

Yes, that is possible. Since eave height measurements sometimes refer to the top edge of the finished floor of the ground floor, the development plan often limits how far this reference height may be above the terrain. Raising the house to accommodate a basement-level apartment (resulting in the ground floor being an elevated ground floor) is therefore not allowed.

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Thank you very much :-)

So even with a 12m (39 feet) eaves height, it doesn’t help?

But I can raise the granny flat by 0.5m (20 inches) or just place it entirely in the basement?

A 12m (39ft) eaves height suggests a typical narrow townhouse floor plan. This makes it difficult to provide access to the granny flat. Having the ground floor slab half a meter (1.6ft) above ground level is also hardly sufficient for a basement apartment, as you would need a significant slope or hillside for that.

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So the plot is intended for semi-detached houses.
So that only leaves a basement apartment with a large outdoor seating area or significant excavations?

michi216 schrieb:
So, the plot is intended for semi-detached houses.
So, does that leave only a basement apartment with a large outdoor seating area or excavation?

You will most likely not get approval for this as living space, at least not as an independent dwelling unit.
Are two separate dwelling units even allowed on one half?
After all, a parking space would also have to be provided – doesn’t that make things a bit tight?

Why do you want an in-law apartment?

Best regards in brief