Additional costs for residential units

Maybe first a few words about the concept: We thought about creating modular units that can be easily combined or separated in one direction or another.

Huh? The residential units are stacked on top of each other. How do you want to combine or separate something afterwards? Combining the residential units will be difficult, because thanks to the staircase it will always feel like they don’t belong together. If you want to rent it out sometime, you also have to build very solidly so that soundproofing etc. is guaranteed. A bit of modular drywall is not enough there.

Something like that... so it should offer various possibilities and be able to adapt well if something changes.

I am very curious about the floor plans. Post those first before optimizing the last detail. First clarify the basics.

What I’m really curious about is how you plan to do the stairs. Usually, the stairwell is right next to the exterior wall. But that wouldn’t work here because in the attic the stairs have to come out more towards the center. Doesn’t that waste too much space for the stairs?

Sorry, I totally forgot to mention that just now. In fact, in my plan the stairwell is on the exterior wall. For the ground floor and upper floor that’s unproblematic anyway. The attic is basically the exciting part. Of course, I could be wrong, but this is how I pictured it: The stairs start at the exterior wall and then spiral, after which they go straight towards the middle of the attic. Since the pitch of the stairs should not significantly exceed 35 degrees (it might even be less) and the roof above has a 35-degree pitch as well, I assumed that both would match. So you basically go "with the roof" going up. Accordingly, there is always enough space so that you don’t bump yourself. You then arrive in the attic after about 3.5 to 4 meters of stairs. Since I would like to have a 120 cm walking width (but that’s not fixed yet, just a wish), the space lost in the attic for the stairs (excluding surrounding walls) would be about 4.5 m². But like I said: This is just my rough amateur plan. It’s quite possible that the architect will slam that in my face later.

Huh? The residential units are stacked on top of each other. How do you want to combine or separate anything afterwards?

I had considered that the main challenge in the planning. I wanted to build it so that you can do exactly that. So it would feel like 1-3 residential units without having to make major structural changes (except maybe taking off the apartment door). I don’t know yet if I will succeed, but my first impression was at least not entirely negative.

I can upload floor plans later. I have already been able to quickly adjust my roof construction. I still don’t have an answer to the question (here: ), but I simply suspect that my assumption is correct and that image 1 is just a clad knee wall. If so, my tent roof would be planned roughly like this:

For simplicity’s sake, I always assumed 50 cm foundation walls, 50 cm roof thickness, 30 cm ceilings/floors, and 20 cm interior walls (which will be relevant for the floor plans) in my previous sketches. I think this is somewhat generous, but for the first step I preferred to stack a few centimeters too high rather than too low.

Sorry, but the concept is simply nonsense from every angle. From the revolutionary 'modularity' to an apartment in the tent roof and a staircase that first spirals and then straightens, using up the barely existing space in the attic. The egg-laying wool-milk-sow with a pirouette that you are planning doesn’t work. Either you plan a 3-family house or you plan a single-family house. If I were you, I would take a few steps back and wait until your architect has time for you. The land situation also still sounds a bit strange. It is 'qasi reserved' but you don’t know where it is or what it looks like? The development plan is also unknown. First, have a real plot of land with a real development plan in hand, then you can start planning. Your mental exercises are quite fun to follow but for your project a waste of time for now.

Say the house height again quickly. I don't feel like searching. Of course, you can also measure it yourself in your sketch. Is the knee wall feasible? You are drawing one with about 1.5 m???

For design reasons, city villas are usually built with a 20-degree roof pitch. 35 degrees are rather unattractive.

I'll ask . Wasn't there someone here who turned a semi-detached house into 4 apartments?

First have a real plot of land with a real development plan in hand, then you can start planning. Your mental exercises are quite amusing to follow, but for your project, they are a waste of time for now.

You are completely right. Only when the plot is purchased should you show up here again with the plans from the architect. That is more sensible. As we often find here, it is counterproductive to show up at the architect with your own plans. However, he would also very quickly calculate for you how pointless a tent roof is for your requirements.