ᐅ Planning a Semi-Detached House? Cost Comparison Between a Semi-Detached House and a Detached Single-Family Home? Experiences?

Created on: 26 Aug 2018 21:19
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BonkoHonko
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BonkoHonko
26 Aug 2018 21:19
Hello,

Until now, I have only been reading in this forum. Since a new residential development is being built near us that we are interested in, we now want to gather more information about which building plots might be suitable for us.

The initial consultations at the bank and general conversations with acquaintances who have built homes show that we can no longer (or do not want to) fulfill the dream of a detached single-family house in our area. Therefore, as a compromise, only a semi-detached house is still an option. According to the development plan, both single-family houses and semi-detached houses are permitted with a defined length.
- Is there a rule of thumb for how much you save with a semi-detached house compared to a single-family house?
- Assuming we get a building plot, how can I estimate what kind of semi-detached house can be built on it?
- How are semi-detached houses planned if the homes have not yet been designed? When you apply for a plot, aren’t you basically buying a pig in a poke? Perhaps you “have” to bite the bullet and build a single-family house after all, for example, if you don’t get along with the neighbor?
- Do you have any experience with getting along with neighbors in a semi-detached house?
- Since I am quite tall, a comfortable ceiling height is important to me. How can this be practically planned when building a semi-detached house?

I have uploaded the usable area template. I have the following questions:
- A and B are clear to me. But C and D are not: a hip roof or a pyramid roof with a roof pitch of 0-10 degrees?
- I have not found any definition of the different building types, for example a1 or a3. Where are these normally defined?

Thank you very much for your answers!

Technische Haustechnik-Installationszeichnungen mit Wasseranschlüssen und Abmessungen (WA)
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Müllerin
26 Aug 2018 21:39
Just a moment...
So, if you buy a plot of land where either a semi-detached house or a single-family home is allowed to be built, then to build a semi-detached house you need someone to buy the land with you and share it.
That’s usually how it works.
Sometimes the seller might help find a partner if there are enough interested parties.

And of course, you can come to an agreement with your neighbor; ideally, your ideas will match quite well. In the worst case, you won’t agree and compromises will be difficult, which will significantly delay everything at first.
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Bookstar
26 Aug 2018 22:13
The potential savings with a semi-detached house compared to a detached house are very limited, except of course for the smaller plot of land.

On the construction side, if built simultaneously, some equipment can be shared. Overall, I would estimate a maximum of 10,000.
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ypg
26 Aug 2018 23:10
Flat roofs, mono-pitched roofs, hip roofs, and pyramid roofs with slopes ranging from 0 to 10 degrees.
Maximum building height 7.20 m (24 feet), which corresponds to a two-story construction.

Save money, as @Bookstar already mentioned.
11ant27 Aug 2018 01:35
The rule of thumb is simple: a semi-detached house does not save you any costs on the house itself compared to a detached single-family home; the savings come only from the plot of land: the semi-detached house saves one side of the setback distance to the property boundary – that’s all.

A plot of land approved for both building types ("E/D") is useless for you. First, as mentioned above: if the width allows for "E" (detached), it will be too expensive for your budget if you want "D" (semi-detached). Second, if the width is only enough for "D" and on both sides the neighbors have lots wide enough for "E," then you lack the partner half. You could only be faster (and force the neighbor on the side adjacent to the semi-detached house to build accordingly) – or alternatively, you will be forced into "E" and then it will be very narrow.

So it should already be clear: if you are set on a semi-detached house, look only for plots designated for semi-detached construction.

Now about the semi-detached house itself: in my opinion, this type of house is only suitable for developers (or neighbors planning together). Otherwise, there is a wide variety of risks that the two uneven halves will not fit together well at the "joint."

The worst case is when the partner half starts building later and wants a basement, but the first builder does not. Another common source of complications is exterior wall insulation (on the shared side), especially if one is finished and the other is still waiting; particularly if one is built with solid construction and the other with timber framing.

My advice is: if it comes down to a semi-detached house, look for developer offers or for a specific "partner family" with similar ideas (the floor plans can be different, but planners who communicate with each other – or even a shared planner – are very helpful).

Alternatively: considering that with a semi-detached house you only save about 3m (10 feet) in plot width, think again about building a detached house. You can save elsewhere: on the third shower in the guest bathroom, on bay windows, on a carport that you plan to add later, and so on.
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kaho67427 Aug 2018 07:32
What does land cost per square meter in your area? In my opinion, the question is whether it is really so expensive that you can only afford a house on a “half” plot of land. If that is the case, the project might be questionable from the start, or the land is genuinely almost unaffordable for you, so it might be better to look for alternatives.