ᐅ Single-family house or semi-detached house?

Created on: 2 Mar 2017 15:07
B
Bau_dus
Plot size: 13m (43 feet) wide, 40m (131 feet) deep (neighbor has the same), building allowed up to 2.5 stories, no flat roofs, building envelope: semi-detached house: 10x14m (33x46 feet), detached house: 7m (23 feet) wide x minimum 14m (46 feet) deep. The goal is to achieve 200sqm (2,153 sq ft) of living space plus a basement.

With a 7m (23 feet) wide detached house, can you achieve a good floor plan, or does it feel more like a townhouse? Would you recommend choosing the semi-detached option?

Considering 2.5 stories, space should not be an issue.

Thank you very much for your insights!
11ant3 Mar 2017 18:03
tempic schrieb:
I just can’t get my head around it,

... and it doesn’t have to be.
tempic schrieb:

why a joint planner/general contractor should be the only sensible approach and the only way to achieve a harmonious result.
Bieber0815 schrieb:
From my perspective, it’s simply more efficient to build the semi-detached house as a whole. Each party can still follow their own preferences during interior finishing.

Exactly. Because of the whole. The autonomy of the two halves is overrated. Each has its own land register entry, yes — but a condominium does too. The shared wall remains an "interface."
tempic schrieb:

And if built one after the other, it’s actually easier.

I wasn’t born in an office; I’ve worked on construction sites. That’s why I see it the other way around: active coordination is always easier than dealing later with facts that have already been set, measuring them, and then having to base your own planning on that.

Nobody has to celebrate their own topping out ceremony a year later than the neighbor’s just because they have a different building width and interior wall positions.

Architect A won’t make himself available as a planning contact for Architect B, nor will he share plan files to ensure the precision of their work at the interface.

And as I said: if Architect A proves to be such an absolute blockhead that no agreement can be reached, there’s always the option to work with their colleague instead.

Still, to rigidly choose someone else from the start, I’d call that “acting like a stubborn child.” It’s a bit like a phase of defiance.
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11ant3 Mar 2017 18:12
Nordlys schrieb:
And company xy is good, but expensive.[...] Where can we save on my half? Cheaper doors, Polish windows, concrete garage, and so on. [...] Then your half is just the welfare version of the neighbor’s house. So what.

Company xy is expensive when they build high-end, but upscale and cramped don’t really go together. If the neighbor had money to spare, he would have preferred dozens of other plots. There’s a reason why he ended up in Paderborn and not on Broadway. It’s fine as it is, or will be made to fit.
Nordlys schrieb:
Third and final version, if xy and neighbor are unpleasant. Then there’s no semi-detached house. You and I both keep our three meters (10 feet), maybe put the garages next to each other, and each build a two-story bowling alley. Watch out, he’ll soften up then!

Two-story bowling alley – you made my day!
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T
tempic
3 Mar 2017 19:20
You are giving the original poster incorrect information... hopefully, they will seek advice from another source.

When an architect wants to act like a building contractor, they are usually more expensive than a large home builder. There is no need to discourage the original poster from looking for more affordable alternatives with misleading arguments.

The idea of "unity" and "wholeness" is nonsense, which is obvious considering that both semi-detached houses can meet different energy standards. One side may comply with the Energy Saving Ordinance, while the other achieves KfW40+ certification.

A semi-detached house can also simply mean that two houses are built very close together... you need to move away from the mindset that a semi-detached house is a horizontally divided two-family house.
B
Bau_dus
3 Mar 2017 19:49
Thank you all. So, the plot is not in Paderborn: the neighbor will buy the plot just like I intend to, because it is quite central in Düsseldorf and relatively affordable – in that district, another plot is currently being offered for €1000 per square meter (approximately $100 per square foot). The neighbor will simply build on it, but the seller is ultimately willing to accept a lower price than I am: he reduces the price by the living area – 150 square meters (about 1,615 square feet) versus the 200 square meters (about 2,153 square feet) that I want. An 8x12 meter (26x39 feet) building envelope would probably be his initial idea.

Since I am allowed to build up to 10x14 meters (33x46 feet), would you distribute the 200 square meters (about 2,153 square feet) over two stories and fully utilize the building envelope, or perhaps go for 9x14 meters (30x46 feet) instead, without developing a second floor and with a smaller building envelope? Would this be more cost-effective in terms of construction expenses?
Y
ypg
3 Mar 2017 20:11
I don’t understand your question.
You list the required rooms based on the present and future, considering the size of the family, their habits, and hobbies — what is needed or will be needed. After that, a space plan is created to determine the best location for each room. Then construction begins.
Earlier you wrote some unusual things regarding this. Houses are built individually for oneself, not based on what one could do.

Regards, Yvonne
E
Escroda
4 Mar 2017 07:46
If I had to choose between a detached house and a semi-detached house, I would always opt for the detached house, even if it meant making some compromises regarding the floor plan or the exterior appearance of the building. Your discussion about being tied to a shared designer, coordinating different planners, agreeing on the exterior design, the scheduling, and so on, only confirms this. And later, I end up living next to a hobby craftsman who mounts shelves on the shared wall every Sunday morning.
Bau_dus schrieb:
But wouldn’t he just be out of luck if I want to build a single-family home?

Yes. In unplanned residential areas (§34 Building Code), the setback from the boundary line is the rule. Whoever wants to build on the boundary needs at least a declaration from the neighbor in which they also agree to boundary line construction. This can be (but does not have to be) secured by a formal easement.
§6 Building Regulations NRW, 1
...
b) opposite to those where building without a setback is allowed under planning regulations, if it is ensured that building without setback will occur on the neighboring property.
11ant schrieb:
The municipality must be crazy to allow that without both plots belonging to the same owner.

What does the municipality have to do with it? No development plan was adopted. Therefore, each landowner has free design options within the framework of §34 Building Code.
11ant schrieb:
The first one is interfering with the other’s freedom.

No, because the first party must also ask the neighbor whether they agree to building on the boundary. Only if the first party builds with a setback is neighbor approval not required. If you want to build a semi-detached house, the possibility of boundary line construction should be secured before purchasing the plot.