We are planning our smart home in the single-family house

For me, this is actually one of the "coolest" features. We have a relatively long hallway with several meters to the wardrobe. If vacuuming and mopping are done regularly here, it can prevent the dirt from spreading further in the house. This can also mean vacuuming after taking out the trash. Since the area is relatively small, the vacuum/mop would be done again after 5 minutes. The function could also be linked to a button at the exit or a voice command "Alexa, bye" so that the robot doesn’t start up for every little thing. You have to test what fits best into the routine.

At this point, I recommend a freshwater connection and drainage in the hallway. We did that for the vacuum robot. It can now run up to 3 months without maintenance or until the dust container is full.
Check out the Dreame L20 Ultra and the associated fixed water connection set. Both together cost around €1,500 but it’s really cool. It’s hidden in a room niche where the cabinet door is shortened by 12 cm at the bottom so it can get through. This was planned anyway since we didn’t want a fully functional pantry.

(2) In the guest bathroom, music should additionally start playing when someone is present and, if necessary, the ventilation should be turned up a bit

Yes, great. Sports broadcast, sometimes you have to watch, and you deliberately leave the door ajar to catch something. In the background, Eros RamazDädädädädädädäBayerndreimiteinerdringendenVerkehrsmeldungdieKuhElsaistaufdieAutobahngelaufen is softly humming. Mood spoiled.

(4) Vacuum cleaning robot in the hallway that automatically starts when you enter and/or leave the house (dirt in the hallway)

That sounds like an animal- and toddler-free household. I can also thoroughly get excited about every piece of tech junk, but luckily the boss plans the single-family homes, that can’t be left to the men like grilling without risk ;-)

At that point, I recommend a fresh water connection and drain in the hallway. We did that for the robot vacuum. It can now run for up to 3 months without maintenance or until the dustbin is full.
Take a look at the Dreame L20 Ultra and the associated continuous water connection set. Both together cost around €1,500, but it’s super cool. It’s hidden for us in a room recess where the cupboard door is trimmed 12cm at the bottom so it can pass underneath. This was planned anyway since we didn’t want a full pantry.

Cool thing! But without an automatic dustbin emptying function into a large container in the station (which I know from other models), the water connection only makes limited sense. For us, the dustbin fills up after 1-2 vacuum sessions. But I will definitely keep it in mind.

Let's establish this: With KNX or any other serious smart home system, you can do whatever you want. Everyone can decide for themselves how meaningful it is.

Unfortunately, Mr. lacks a bit of creativity to imagine the comfort of it all. But there are nice examples: Today you can have a car that more or less automates all functions in a neat infotainment system and takes a lot of tasks off your hands that you had to do yourself before: regulating temperature, turning on lights in rain or darkness, windshield wipers in rain, activating recirculation when a 190D is in front of you, switching high beams on and off depending on oncoming traffic, adjusting volume according to speed and road noise, and so on and so forth. Would you - unless you are a strong technology refuser - still order a new vehicle today without such systems? I don’t think so.

By analogy, to help imagine it better, you would then have a fan heater on the passenger seat, a portable radio on the back seat, a window crank, a nice slider to close the recirculation flap (like on the old Landy, cool!) and the constant attention to not blind anyone at night with the high beam. Sure, you would get from A to B that way, but do you want that in a new car today?

Cool gadget! But without an automatic emptying function of the dust container into a large container in the station (which I know from other models), the water connection only makes limited sense. In our case, the dust container is full after 1-2 vacuuming sessions. But I will definitely keep it in mind.

There is a dust container in the station. An improvement would be a connection to a central vacuum system, but you have a budget with which you want to implement KNX and not a fully automatic house cleaning system ;-)

We are currently planning with KNX, a complete renovation in an old building, i.e. comparable to new construction.

About 200m2, no crazy LED madness, but otherwise everything included, alarm system, pool control, in addition to the front door 2 garage doors and a courtyard gate.

I have a system integrator who takes care of it for us, so far he makes a very competent impression and knows what he is doing.

Costs:
Planning EUR 5K
Implementation EUR 10K
Hardware estimated EUR 15-18K

In addition, the executing electrician costs about 40K.

So I am currently planning with about EUR 80K for the electrical work.

Before the system integrator:
Offer from electrical company:
Conventional wiring 80K, with KNX 120K...
That makes the planner pay off quickly oO