ᐅ Conversion of a Two-Family House into a Duplex with Comprehensive Renovation
Created on: 27 Jun 2023 19:42
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Baubiene321B
Baubiene32127 Jun 2023 19:42Hello everyone, we already own a house from the 1950s. A complete renovation is urgently needed.
Our current plan is as follows: to convert/extend the existing two-family house (basement, ground floor, 1st floor, attic) – if possible – into a semi-detached house. We want to create two separate semi-detached units. However, we are not yet sure whether this is possible or economically viable due to the existing staircase.
Does anyone have experience with such a project or any ideas/suggestions? So far, I have not found anything online that helps us.
One half of the semi-detached house will be for us (2 adults, 2 children), and the other half for grandma (who may require less living space). Separate entrances, terraces, and gardens are important to us.
Here are the current plans (we own the approximately 800 sqm (8,600 sq ft) plot 15; the red building does not exist):
Our current plan is as follows: to convert/extend the existing two-family house (basement, ground floor, 1st floor, attic) – if possible – into a semi-detached house. We want to create two separate semi-detached units. However, we are not yet sure whether this is possible or economically viable due to the existing staircase.
Does anyone have experience with such a project or any ideas/suggestions? So far, I have not found anything online that helps us.
One half of the semi-detached house will be for us (2 adults, 2 children), and the other half for grandma (who may require less living space). Separate entrances, terraces, and gardens are important to us.
Here are the current plans (we own the approximately 800 sqm (8,600 sq ft) plot 15; the red building does not exist):
[Continuation from: https://www.hausbau-forum.de/threads/zweifamilienhaus-zu-dreifamilienhaus-erweitern-ideen-gesucht.43383/ ]
Your floor plans are incomplete, and the small site plan excerpt is not really useful. The floor plans also do not appear to date from the original year of construction (more likely from the attic conversion?). The floor plans seem to confirm a suspicion of @Tolentino (it seems that a mix of old and new brick sizes was used). Why you insist on the idea of turning the granny flat into a semi-detached house, only the gods know. The extension potential of the current house does not support this concept in any case. Possibly, an upper-level entrance could be created for the “upper floor & attic” unit. What about the shed / barn / laundry room—what role should this secondary building play in the future, and could it possibly be removed?
Give up withholding background information, then you can be helped.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
Your floor plans are incomplete, and the small site plan excerpt is not really useful. The floor plans also do not appear to date from the original year of construction (more likely from the attic conversion?). The floor plans seem to confirm a suspicion of @Tolentino (it seems that a mix of old and new brick sizes was used). Why you insist on the idea of turning the granny flat into a semi-detached house, only the gods know. The extension potential of the current house does not support this concept in any case. Possibly, an upper-level entrance could be created for the “upper floor & attic” unit. What about the shed / barn / laundry room—what role should this secondary building play in the future, and could it possibly be removed?
Give up withholding background information, then you can be helped.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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HeimatBauer28 Jun 2023 08:46What is still missing:
- Photos of the house, masonry, infrastructure, roof, etc.
- The repeatedly requested information on budget, requirements, etc.
- Explanation of why these very specific solutions are necessary
I also have a house from 1953 here. Of course, it can be lived in, and of course, it can be renovated, but even a basic refurbishment is more expensive than new construction, and an energy-efficient house is out of the question—let alone a passive house. Renovation while still living in it? No way.
- Photos of the house, masonry, infrastructure, roof, etc.
- The repeatedly requested information on budget, requirements, etc.
- Explanation of why these very specific solutions are necessary
I also have a house from 1953 here. Of course, it can be lived in, and of course, it can be renovated, but even a basic refurbishment is more expensive than new construction, and an energy-efficient house is out of the question—let alone a passive house. Renovation while still living in it? No way.
HeimatBauer schrieb:
- Reason why it has to be these very specific solutions I think, at its core, it’s simply about having a separate front door for grandma (so it doesn’t cause trouble if she comes home very early from the club?). One thing I can guarantee: separate front doors won’t stop grandma from secretly giving the kids chocolate whenever she feels like it.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
H
HeimatBauer28 Jun 2023 16:4311ant schrieb:
I think, at its core, it’s simply about having a separate front door for "Grandma" (so it doesn’t cause a disturbance if she comes home very early from the disco?). One thing I can guarantee for sure: separate front doors won’t stop Grandma from sneaking chocolates to the kids as she pleases.I meant it more on a global scale, like why the house is being fully renovated and expanded instead of building a new one – if you have to move out temporarily anyway, it doesn’t really matter whether you are away for two or twelve months.
I’m somewhat fascinated by the resilience in asking the same question every year, expecting a different answer – at least the initial situation has changed a little by now. If only there were photos, detailed information, etc., then one could say something meaningful.
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Baubiene32128 Jun 2023 19:51@11ant
Why always so unfriendly? Personal issues? I kindly ask you not to respond further or offer any “tips,” thank you.
@HeimatBauer
Yes, you are right, the situation has changed in that the first floor is no longer occupied, and our grandmother (who lives on the ground floor) is open to all suggestions and options. Since she still lives in the house, it does make a difference for her whether she would have to move out permanently (in case of demolition and new construction) or only for 1–2 months. The energy standard the house (possibly a duplex) can be brought up to during a major renovation or conversion also matters. It should be a low-energy house; a passive house standard is probably impossible with the renovation. Basically, our first step is to clarify which floor plans are possible with the existing house. Then we would compare the costs of new construction versus renovation, as well as the energy standards, and so on. If a duplex is not possible from the start, or if a house with separate ground floors (an entrance through the first floor is not an option) is excluded, then a renovation won’t be considered anyway. For KfW funding, renovation would of course be ideal.
The shed is not an issue and can definitely be removed.
Unfortunately, there are no additional plans of the house apart from those already uploaded 🙂 Or which plan exactly do you mean?
I will take some photos of the house tomorrow, but I don’t think they are that important for floor plan planning yet, right?
Thank you very much!
Why always so unfriendly? Personal issues? I kindly ask you not to respond further or offer any “tips,” thank you.
@HeimatBauer
Yes, you are right, the situation has changed in that the first floor is no longer occupied, and our grandmother (who lives on the ground floor) is open to all suggestions and options. Since she still lives in the house, it does make a difference for her whether she would have to move out permanently (in case of demolition and new construction) or only for 1–2 months. The energy standard the house (possibly a duplex) can be brought up to during a major renovation or conversion also matters. It should be a low-energy house; a passive house standard is probably impossible with the renovation. Basically, our first step is to clarify which floor plans are possible with the existing house. Then we would compare the costs of new construction versus renovation, as well as the energy standards, and so on. If a duplex is not possible from the start, or if a house with separate ground floors (an entrance through the first floor is not an option) is excluded, then a renovation won’t be considered anyway. For KfW funding, renovation would of course be ideal.
The shed is not an issue and can definitely be removed.
Unfortunately, there are no additional plans of the house apart from those already uploaded 🙂 Or which plan exactly do you mean?
I will take some photos of the house tomorrow, but I don’t think they are that important for floor plan planning yet, right?
Thank you very much!
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