Hello,
I am currently planning a new build (my first), which is intended to have 2-3 residential units and will likely aim for an energy efficiency rating of 40+. Essentially, it could be called a multi-generational house. Initially, only 2 units will be developed (one on the ground floor and one on the upper floor), but in the future, a third unit is planned for the attic. I would like to leave the attic unit as a shell at first, but have all the connections, wiring, and so on installed. The goal is to avoid any further construction work later so that it can be used as a separate unit.
As far as I know, a separate residential unit requires the following conditions:
- Its own lockable entrance
- Its own electricity meter
- One kitchen connection each
- One bathroom connection each (toilet and shower)
I hope I haven’t missed anything here. If so, please let me know.
Now to my question: To plan a bit better, I would like to get an idea of how much an additional residential unit costs in terms of installing connections for an extra kitchen and an additional bathroom, as well as setting up a separate electrical circuit with its own electricity meter in the utility room. In other words, the extra costs you should budget for when turning a standard single-family house into a house with 2 or 3 units.
For now, I am only interested in the cost of the connections—that is, the potential for an additional unit—not the cost of the kitchen or bathroom fixtures themselves.
I hope you can help. Many thanks in advance for any comments and explanations!
I am currently planning a new build (my first), which is intended to have 2-3 residential units and will likely aim for an energy efficiency rating of 40+. Essentially, it could be called a multi-generational house. Initially, only 2 units will be developed (one on the ground floor and one on the upper floor), but in the future, a third unit is planned for the attic. I would like to leave the attic unit as a shell at first, but have all the connections, wiring, and so on installed. The goal is to avoid any further construction work later so that it can be used as a separate unit.
As far as I know, a separate residential unit requires the following conditions:
- Its own lockable entrance
- Its own electricity meter
- One kitchen connection each
- One bathroom connection each (toilet and shower)
I hope I haven’t missed anything here. If so, please let me know.
Now to my question: To plan a bit better, I would like to get an idea of how much an additional residential unit costs in terms of installing connections for an extra kitchen and an additional bathroom, as well as setting up a separate electrical circuit with its own electricity meter in the utility room. In other words, the extra costs you should budget for when turning a standard single-family house into a house with 2 or 3 units.
For now, I am only interested in the cost of the connections—that is, the potential for an additional unit—not the cost of the kitchen or bathroom fixtures themselves.
I hope you can help. Many thanks in advance for any comments and explanations!
ypg schrieb:
Yes, it is like that. Perhaps you should find a real professional to answer your questions at the drawing board. Okay. In any case, I will discuss this again with a "real professional" so they can explain it to me.
For now, I hope you might be able to help me out. I had imagined it something like this:
In the picture, you can clearly see what I mean. The roof overhang extends beyond the main walls. The roof slope starts at the overhanging part of the roof, not directly above the main walls.
As an amateur, I have mostly been inspired by images I have seen. Am I missing something here? Or is the house in the picture basically constructed the way I sketched it?
This is at least very common with pyramid roofs on urban villas. That’s why I assumed it was normal and based my calculations on that.
Felix85 schrieb:
But let’s be honest. Please, be honest yourself: For someone planning something like this, your knowledge of the basics and facts is insufficient.
You could say: no homework means failing grade. Sit down and try again.
There are so many inconsistencies in your statements, even in definitions, which you would normally look up first via Google or Wikipedia when undertaking a big project.
You can see for yourself here: most people have stopped responding already because your plan sounds unfeasible.
Your house design seems to grow taller with every new reply.
Felix85 schrieb:
but limiting myself and living in several residential units under one roof. I used to be the tenant, now I am the landlord. First of all, I would ask very different questions in a forum like this, but well: everyone is different.
I’m out of here now. When the water tower gets planned with starry sky windows, feel free to show us 🙂
Felix85 schrieb:
Am I missing something here?Yes, the money issue. Man, everything is possible if you throw enough cash at it. I thought you were aiming for cost optimization – instead, luxurious materials are being used here like there’s no tomorrow.
ypg schrieb:
For someone planning something, you know too little about the basics and facts.Yes. I’m currently studying and I’m definitely not confident with all the terminology yet. However, I haven’t written thousands of posts in a housebuilding forum either. You probably have a few lessons ahead of me. I’m also sure I’m far from having a complete understanding, but when I look around at friends and acquaintances, many started building with far less planning and research. I want to do it differently and if needed, I’m willing to get insulted in a forum by more experienced people. It wasn’t exactly my idea of a constructive exchange, but well. You take what you get. The best I can do is slowly learn and get familiar with it.ypg schrieb:
There are so many inconsistencies with you.Which ones? I’ve already asked a few times about these misconceptions and misjudgments so I can correct them. It’s great that you see them. Of course, it would be even better if you could point them out so I can address them. For example, you calculate without a protractor and refer to values, while my drawing software, with a precise 35-degree line, produces the sketch above. Can’t you just admit that you were off and it’s actually a bit more than your 20 square meters (215 square feet)? That’s not a big deal. And if you see inconsistencies: why not just ask nicely? Maybe I can explain them, or I might see you’re right and learn something. That would be more constructive for both of us, wouldn’t it?ypg schrieb:
Your house seems to get taller with every response.“Seems” is the right word. But it’s not me creating that impression. With all due respect: You are the only one constantly saying that my planned project still needs to become bigger and taller and what else. I’ve been working on a rough floor plan for several weeks now. It’s not perfect in every detail but quite advanced. The areas and heights are fixed (unless there are later reasons to change them). I don’t intend to build bigger or spend more money than necessary. So please stop assuming that about me.ypg schrieb:
Yes, the money question. Man, anything is possible if you throw money at it.
I thought you wanted to optimize costs — but you’re installing premium materials like there’s no tomorrow.Again… I just asked a simple question. Why is it so difficult to simply respond to the question instead of always going into attack mode? The picture I posted looks very similar in many cases. Is that an unusually expensive, extremely complicated structure? Or are these images just a regular hip/tent roof with a wider eave that can be executed without issue? For planning a potential living area in the attic, knowing this would be helpful.Felix85 schrieb:
You calculate, for example, without a protractor and talk about figures, while my drawing software, using an exact 35-degree line, produces the sketch above. Can't you just admit that you were off and that it’s actually a bit more than your 20 square meters? It’s not a big deal.
And if you see inconsistencies: just ask Yes, I can! I do it without one as well.
You mentioned “without knee wall,” so I’m not mistaken there—I even rounded the numbers in your favor. Good night!
Felix85 schrieb:
What does Kniestock mean? Kniestock.
Felix85 schrieb:
So far, as an amateur, I have mostly been inspired by pictures I have seen. Am I missing something here? Or is the house in the picture basically built the way I designed it in my sketch? What you are overlooking is that the pictures with a pyramid roof don’t include any living space in the attic. Because that simply doesn’t make sense. If you want to rent out, reduce costs and maximize living space. So choose a gable roof.
How much equity and income do you have available for this project? Do you plan to live in one of the three apartments yourself?
Addendum: Do you already have a plot of land? If so, please share the key information about the possible building parameters.
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