Which smart home system is suitable for our new building?

There are also Flex switches. They have already been mentioned here. But maybe a double socket is enough for you. You will then have the best WLAN reception at the TV. ;-) TV, Media Receiver, AV Receiver, Retro Pi -> Four Why a 500 line if your WLAN only does 100-250 anyway?

At least 100 mb should still reach the end of the garden that means it does not have to be the maximum internet all the way to the end of the garden 100 mb would also be enough for surfing and watching videos The question is whether I can live with AVM without an outdoor access point or not I would like to connect as many devices as possible to the LAN What comes to mind for me to connect to the TV would be Nvidia Shield, TV Receiver, XBOX, TV (the TV could also go on WLAN if necessary) What about various smart home gateways like Hue Bridge, they should also be optimally connected to the LAN, right? Yes, the Unifi FlexHD is really still an option (probably even the best in the Unifi universe)

At the end of the garden, at least 100 mb should still arrive
this means that it does not have to be the maximum internet speed up to the end of the garden
for surfing and watching videos, 100 mb would also be enough

The question is whether I can live without an outdoor access point with AVM or not

I would preferably like to get as many devices as possible into the LAN

for the TV, the following come to mind that I would connect

Nvidia Shield, TV receiver, XBOX, TV (which could also be put into the WLAN if necessary)
What about various smart home gateways like Hue Bridge, they should also ideally be in the LAN, right?

Yes, the Unifi FlexHD is really still an option (probably even the best in the Unifi universe)

Originally this was about smart home and considering smart garden irrigation and robotic mowers etc., I have directly planned a network cable into the garden house so that from there either more devices/bridges can be connected directly via LAN or another access point can be hung inside the dry part of the house, so that laptop/tablet nearby still gets enough signal.

If you go with Unifi, just take a Switch Flex Mini behind the TV (and in the garden house). It is powered via PoE, which already saves you a power outlet. (and no, it does not provide further PoE for the devices connected to it, which wouldn't help with your multimedia devices anyway).

And even though I have already been reprimanded for unnecessary complications: PoE surveillance cameras will also be connected to the switch in the garden house, which I separate via VLAN from the rest of the network.

My goodness...

if I have a 16 port POE switch and I only connect, for example, 5 POE devices (the rest normal LAN), does the switch still consume that much power? or does it only consume as much as is connected?

It consumes as much power as the devices draw. The power doesn't just leak out of the unused ports and drip onto the floor. The base consumption will certainly be somewhat higher, but negligible.

the Unifi switch lite 16 port cannot be screwed into a 19" network cabinet, I would have to put it somewhere else

Then just take the 19" switch USW-16-PoE, what's the problem?

May I ask how many devices you have connected to the LAN at the TV spot?

As many as you want to have there. What good does it do you to know that I have 7 devices? In the new house it's 1, the TV, because the rest is in the server cabinet.

with Unifi I’m maybe afraid that it’s overkill for me and I spend unnecessarily much money on it (that I could put into something else) since I don’t need most of the functions of Unifi

You don’t even know what you need. Just because there are 2-3 features included that you won’t need, the advantages still outweigh that.

The question is whether I can live with AVM without an outdoor access point or not

If that thing is inside, hardly anything reaches outside. Experienced that multiple times. Besides, AVM has nothing to do with PoE, so you still need a power outlet nearby. Better not even think about wireless mesh...

at the end of the garden at least 100 mb should still arrive

Then get something decent, for example the U6 Mesh from Unifi. Mount it under the roof overhang in the ceiling and you will be happy.

What about various smart home gateways, like the Hue Bridge, they should also be optimally on LAN, right?

The Hue Bridge doesn’t have any WLAN at all.

It’s really exhausting dealing with you. Every piece of advice gets torn apart and because of your cluelessness you’re back at zero again. Why don’t you just do what the majority of people recommend? Why always doubt and start from scratch? How did you manage to build your house?

If this now also shifts to all those DIY smart home devices and gateways for all sorts of things, I really have to unsubscribe from this thread. It gives you hives.

If this now also switches over to all the DIY smart home devices and gateways for all sorts of things, I urgently need to unsubscribe from the thread. It gives you pimples.

Let's see if he continues here, as he also asked the AVM or Unifi question in another forum today.

Just a stupid question: What's all the fuss about?

To watch or stream a bit of video in the house or garden? 4k via Prime or Netflix comes with about 15Mbit or so. Any lousy DIY solution with a random access point is enough for that.

As long as you can't clearly name why you need special technology, please just keep it simple:

No offense meant, but a sincere advice: Use AVM and extra switches where needed – done. Then you won't drive yourself and us so crazy.

100% my opinion. Just place an AVM well positioned in the house for internet, WLAN, DECT and then put additional access points, e.g. in the garden, if the data rate is too low somewhere. Of course, connect all stationary devices by cable.

That's how I do it too. The Fritzbox is hidden somewhere behind a kitchen panel. Internet comes via the double socket from outside to the Fritzbox, and the local network goes back into the basement through the second line, where it is further distributed with a PoE switch. Connected to that are the rest of the devices like PCs, Pi, APs, etc. I also deliberately don't have a large switch with 16 ports, but what I really need and was cheap (in my case free) to get.

possibly the fear that it’s over the top for me and that I’m spending unnecessarily a lot of money (which I could invest elsewhere) because I don’t need most of the functions from Unifi

See, the money isn't that easy to come by and you don't need anything special. Then please just make a simple solution. If you need more, you upgrade. That's exactly the advantage of the central 19" rack.

Thank you, I was just uncertain because everyone always talks about Unifi access points being much better than those from AVM.

How would you set up an AVM access point in the garden? I would have to lay a LAN cable to the garden shed since it is relatively dry there (in winter the AVM probably has to be brought inside, right?

So for my intended use, AVM is completely sufficient?

I just want good Wi-Fi everywhere and it should work perfectly for IPTV, surfing, and gaming (low ping and high download via LAN mostly depend on the connection and less on the router).

The Fritzbox has to be placed in the basement because the modem is needed there. Or would you use the provider's standard modem?