From which office? Some people have to provide proof here. A hairdresser has even sacrificed a garden because of this. However, the nail lady does not have one. Same location, both in the basement or lower ground floor.
To stay very concrete with the floor plan. With potentially three treatment rooms, three potential sinks should also be planned. I have the impression that your plans are still in the initial idea stage, could that be?
Only one treatment room is needed. More would be nice to have, but it is not required. As you say, it is important that a sink fits in a treatment room. This is mandatory. Initial idea stage: sort of.. We just sketched ourselves what we liked so far at friends' places and then the planner sent us his draft no. 1 based on that. Now the second draft will hopefully follow soon with some changes. (As we already wrote before, we left out a few points because approx. 160 m² of living space on the ground floor + attic would be sufficient for us. The requirement for the basement is simply that we can pick up the second residential unit from the BAFA for the KFW55 house.)
Well, a hairdressing salon as a secondary business is something different from a medical practice. There are hygiene regulations from the health department as well as the already mentioned requirements for accessibility. The change of use from residential space to commercial space must also be reported. You cannot switch between residential use and practice use at will, depending on which offers more advantages.
As a concrete example: In our town, there has been a hair salon for about 5 years. Small, cozy, integrated in the basement. It was subsequently built into an existing apartment. Without designating parking spaces or anything similar. It is clear to me that this does not help me for my construction project (back then at someone else's...). That's why I have the requirement catalog for the parking situation. and it stipulates 2 parking spaces. These are located in front of the garage.
... In our town, there has been a hair salon for about 5 years. Small, cozy, integrated in the basement. This was retrofitted into an already existing apartment. Without designating parking spaces or anything similar. ...
It was the same with my acquaintance. First the basement, then the hair salon. Then the tax office reported a five-figure back payment. But that probably (?) had other reasons and was in another federal state ...
So I won’t say anything about the finances now – rather about the distribution/approach in general.
Personally, with a 1200 sqm garden, I would want to use it and definitely have direct access to it (especially if 3 kids are planned).
That means I would follow the approach: living in the basement with direct access to the garden and moving work to the ground/upper floor.
What I can also say: I would definitely not discuss such a complex project with these "practice" requirements with a general contractor’s planner, but first invest a lot of planning work with an independent architect to be 100% sure that everything works (unfortunately the budget is part of it. Just for comparison with our project: we are currently in the planning phase for about 150 sqm plus carport and hope we will manage here (just for the building!) with 450,000 euros.
Thanks for the feedback. Let’s see if we can implement this with us as well. We have already passed some points on to our independent architect.
If the heating engineer gives the OK here, the garden will be outfitted with ground collectors. This would at least contribute partially to its use:)