ᐅ Convert a single-family home into a two-family home?

Hello,
we have found an existing property that we are interested in.
It is a large single-family house.
We would like to purchase it and convert the upper floor for my wife’s parents.
The house has a main entrance door. The staircase to the upper floor and basement is not accessible from the main entrance but is located next to the kitchen. In other words, you would have to go either through the basement or through the kitchen to reach the upper floor.
For us, this is not a problem. However, is this allowed from a building regulation and insurance perspective?

Best regards and thank you in advance
Andreas

Andi1991 schrieb:

So, they would have to go either through the basement or through our kitchen to reach the upper floor. For us, this is not a problem.

What do you mean by "for you this is not a problem"? We are talking about a permanent situation that a) is not particularly convenient for seniors and b) is hardly practical for families on a daily basis.
What about visitors to the parents, who have to pass through your kitchen during a relaxed family evening?

Good morning Ypg,
thank you for your response.
Unfortunately, your answer does not address my question.

Best regards

Andi1991 schrieb:
Unfortunately, your answer does not address my question.

@ypg .. Yvonne is only responding to what she can actually answer. Whether it is legally permitted under building regulations/planning permission ... we do not know the zoning plan.

Andi1991 schrieb:
Unfortunately, your response does not address my question.

Then take this as a suggestion to improve the clarity of your questions. For example, including images of the situation could be extremely helpful and also significantly increase the number of people able to respond. A quick note: even poor screenshots of original floor plans are vastly better than distorted, non-scale drawings that omit essential details, which only reveal a lack of graphic skills.

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Andi1991 schrieb:

Hello,
we have found an existing property that we are interested in.
It is a large single-family house.
We would like to purchase it and convert the upper floor for my wife’s parents.
The house has a front door. However, the stairwell to the upper floor as well as the basement are not accessible through the front entrance but next to the kitchen. In other words, to reach the upper floor, you would have to go either through the basement or through our kitchen.
For us, this would not be a problem. But is this legally allowed in terms of building regulations and insurance?

Best regards and thanks in advance
Andreas

From a building regulation perspective, the upper floor would not be considered a separate living unit and therefore would not be permitted as a self-contained apartment or granny flat, if that is what you were asking. It would remain part of a single dwelling unit.