ᐅ Building an End-Terrace House as a Self-Managed Project with a General Contractor

Created on: 27 May 2019 10:48
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goalkeeper
Hello everyone,

some of you might have already followed one of my threads about us having to or being allowed to build our end-terrace house on our own responsibility – depending on how you look at it. This means that we are buying an end-terrace plot (215 sqm (2315 sq ft)) in a new development area in the Rhein-Neckar district and will be building on it ourselves – but in coordination with our two terrace neighbors.

The municipality, which sold the plots through a local resident model, ideally wanted applicants to apply as a complete housing group with several families and then build accordingly with a general contractor, construction manager, or architect. Of course, that didn’t really work out, so now there are only individual applicants and also homeowners.

After we were awarded the plot, the addresses of the other terrace neighbors were shared to discuss certain matters, such as roof style, whether or not to have a basement, etc. It was immediately clear that everyone preferred to do their own thing. However, we were still able to agree that the housing group will have a gable roof with a pitch of 35 to 40 degrees (within this 5-degree range).

As the end house, we will build without a basement, while the middle house and the other end house will have basements. This obviously presents a challenge as we would have to make a deep foundation or simply skip it, and the middle house would have to support us, as we will start construction first. The current agreement with the middle house is that we will build a deeper foundation at his expense, as supporting our house later on would be considerably more expensive for him.

We are currently close to signing with the construction manager, the notarization appointment for the plot is at the end of June, and we hope to start construction in the fall of this year. Meanwhile, several other freely planned housing groups are being built around us, which might get in the way with their cranes.

I will document the progress here from time to time – such a self-planned terraced house doesn’t come along very often.
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apokolok
27 Jan 2020 13:53
Well, to be honest, the electricians are right.
Who here has ever replaced media cables?
And successfully pulled them through the proper conduit pipes with DIN-compliant bending radii?
Anyone installing CAT7 or higher inside the wall won’t have to touch it for a lifetime.
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danixf
27 Jan 2020 13:55
hanse987 schrieb:

Many electricians just see DIN 18015-1 as a rough guideline. Considering the price of a network outlet here, I would never accept anything less than running all the cables completely inside conduit. The typical electrician’s response is probably: "Even if we put the cables in conduit, you won't be able to replace them afterward anyway."
I fully agree.
goalkeeper schrieb:

That’s exactly what my electrician friend said as well during a walkthrough yesterday.
The part about "not being able to replace them"?

I installed three conduits myself to enable installing stairway spotlights afterward. I was a complete novice in this regard, and my bending radii were far from standard-compliant. But with two people, the whole process went so smoothly that I really don’t understand that statement at all.

I still want to ask again, just out of curiosity because I don’t get it.
danixf schrieb:

I’m a bit confused about the cable routing? Is only one conduit leading there? Where does the network cable end?
Where does the yellow cable go? Is it inside the same conduit?
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goalkeeper
27 Jan 2020 14:00
danixf schrieb:

Where does the yellow cable go? Is it inside the conduit as well?

In this picture? It goes inside the conduit and then into the utility room to a patch panel.

Four red round buttons in a wall opening; cables running below on a construction site.
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danixf
27 Jan 2020 14:10
goalkeeper schrieb:

In this picture? It goes into the conduit and then into the house connection room onto a patch panel.
Exactly. Your equipment was in the attic before. Now it makes sense...
apokolok schrieb:

Well, to be honest, the electricians are right.
Who here has ever replaced media cables?
And successfully pulled them through the required conduits and DIN-compliant bending radii?
Anyone installing CAT7 or higher into the wall won’t touch it for their entire lifetime.
I have. Even duplex. And you can see how quickly something can go wrong. In the photo, the conduit looks huge... but it’s only M25.
Similar arguments were made 20 years ago. No one really knows what data volumes will be needed in 10-20 years. You’re probably right, but with minimal effort you can prepare for the future.

Close-up of the inside of a conduit with dirt in the building services area
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Scout
27 Jan 2020 14:19
apokolok schrieb:

Who here has ever replaced utility cables?
And successfully pulled them through standard conduit pipes and compliant bending radii according to DIN standards?
Anyone installing CAT7 or higher inside walls now won’t need to touch it for a lifetime.

[x] Replaced ISDN wiring with CAT cables in the parents’ house. Luckily through conduit!

[ ] Photovoltaic system preparation using conduit and pull boxes. Whether that will work, we’ll find out eventually.
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goalkeeper
27 Jan 2020 14:24
Well... I just got in touch with the electrician: he will fix it tomorrow and also install the socket for the router in the utility room that I forgot.