New semi-detached house - smart home setup with an extra 10,000 EUR?

(electric roller shutters 510.- each, conventionally wired, nothing central!).

What would be a fair price? For us, it was about 380 euros on average. I already found that relatively expensive.

feel free to report what the result was. I also want to speak with the electrician from our construction company soon. The question is whether the pricing will work out. If I roughly calculate or based on what I've seen: planning 2,500 EUR (?), switch cabinet all-inclusive 5,000 EUR (?), not much left for the electrician and at least a stripped-down ETS version is still needed. Hmm.

So, I have meanwhile spoken with the electrician of the general contractor.
He has little experience with KNX, but sounded very nice and open to new things.
I think we will get a few green bus lines and some additional copper for sockets and heat sources installed by him.
However, I think I will have to get involved in the planning myself, but I also want to.
Even though the K-U-F would probably call for an integrator here, I think it will work out.
In the worst case, a few sockets will simply not be individually switchable and measurable.
I don’t currently really have many use cases there anyway.
So for posting wiring I am currently assuming about 2k€ extra.

I have already roughly planned the distribution box myself, or rather selected components, and will probably have it planned and built externally.
Currently, I expect about 5k€ for KNX components and 4k€ for the rest (planning, construction, cabinet, small stuff).

In addition, there are KNX components outside the distribution box such as switches, presence detectors, and other sensors.
Right now, roughly parts worth 5,000€ are on the shopping list.

For the ETS, I’m currently strongly leaning towards Inside.
Not only because it is cheaper but also because of usability under Linux.
Maybe we’ll be lucky and the version 6 will come out in time.

If you now add up the numbers, it probably won’t stay at 10k€ for me.
There is still saving potential from my point of view in the number of "socket actuators"; I have initially planned 26 channels, although I will probably connect many to continuous power first and don’t even know exactly what I want to switch and measure with them yet.
I want to plan more concretely before commissioning.
Also some dimming actuators, which are not exactly cheap, and currently at least one presence detector in every room.
I was very sparing with switches (8 switches, 18 presence detectors) so far.

Has little experience with KNX, but sounded very nice and open to new things.

That is already positive - and unfortunately rather rare.

Even though the K-U-F here would surely call for an integrator, I think it will work out.

That only calls for an integrator if (obviously) there is no knowledge and no understanding of such technical topics.

With posting the wiring I currently assume about 2k€ extra.

I consider that clearly too little.

Here I currently assume about 5k€ for KNX components and 4k€ for the rest (planning, construction, cabinet, small stuff).

That could fit better, but does not correspond with the surcharge for wiring.

Currently, parts worth roughly 5000€ are on the shopping list.

Check.

For the ETS, I am currently leaning strongly towards the Inside version.

I would reconsider that. The Inside version is based on a different foundation and therefore runs with mobile devices as clients, but is actually something quite different from the "real" ETS. In case of doubt, I would buy the ETS 5 Pro and in the worst case upgrade to version 6 sometime later. Unless you are sure that the Lite will be sufficient for you.

From my point of view, there is still potential to save on the number of "socket actuators"; I have planned 26 channels for now, although I will probably connect many of them to continuous power initially and don't yet know exactly what I want to switch and measure with them.

You can certainly save on actuator channels at first and upgrade gradually, but the wiring must support that from the outset.

I consider that clearly too little.

Even if the entire "budget" for light switches, roller shutter switches, room thermostats, and so on also goes into wiring? But yes, it may well be that in the end it will be another 2k more as encouragement for more network sockets, preparation for electric vehicle charging stations, outdoor lighting, and so on. I will draw that concretely again over the weekend and compare it with the offer.

So then we would have 7 K instead of 2 K. That should fit better, but then you don’t have any light switches. :D Of course, it also depends a bit on the level of equipment, but just assume that, for example, network sockets (Duplex) cost around 200 EUR each. You quickly have ten of them, which alone already uses up the 2 K.

Where is the construction site?

The thing with the budget and being open to new ideas already sounds pretty good. Your approach with fewer switching actuators would also fit for now. The important thing is that the prerequisites are created. So at least 3 separately switchable circuits per room to the distribution board. Which are initially laid on terminal strips and all sockets are initially on permanent power. Later, you can rewire as needed.

And of course bus cables at every corner and everywhere you could possibly imagine sensors or actuators (plan so that expansion is possible even in 10 years). Also don’t forget empty boxes. Laying the bus cable alongside NYM is really no hassle and practically cost-neutral.

Don’t plan too many switching points; 8-10 are more than you would actually need for a "typical house."

The distribution board itself (depending on size and equipment) could alone cost around 2K (probably more... experience value).