ᐅ Smart Home System Recommendations for Beginners

Hello community,

I will start the shell construction of my semi-detached house in about two months. I want to make my house a bit smarter in terms of control and monitoring. Whether the system is wired or wireless is not very important to me at this point.

Since there are so many systems available, I’m not sure which one would be the right fit for me. For example, I’ve heard about Wibutler, which seems good in theory. Here in the forum, KNX is often recommended.

I hope you can help me and point me in the right direction.

What I want:
Light control, dimming, and motion detectors for hallways, storage rooms, and stairs.
Time- and brightness-controlled operation of selected lights.
For example:
Light control based on the brightness sensor—if it’s too dark in the room and motion is detected, the light turns on; manual activation should also be possible. This also applies outdoors on the property.
Dimmed lighting in selected rooms from 10 p.m. to 7 a.m.
Light control via smartphone
Heating control (underfloor heating with heat pump) if possible
Shutter/blind control via smartphone
Garage door control via smartphone
Camera surveillance via smartphone or web server
Opening the entrance door to the property via smartphone
Smart plugs controllable via smartphone

That’s roughly it.
There are a maximum of 20 lights inside and about 5 outside.
20 switchable power outlets
Up to 10 brightness sensors and up to 10 motion detectors inside (hallways, stairs, storage room)
3 brightness sensors and about 5 motion detectors outside
About 10 windows with electric shutters/blinds
3–5 cameras

Is such a control system sensible?
What system would you recommend?
For a wired system, I’m not sure if the conduit pipes are thick enough.
What approximate costs would I have to expect?

I’m very thankful for your help.