Is there a better option than PowerLine or WiFi to "bridge" two networks together?

I live in a rental, and can't run cables through walls. I want to move my servers out into the conservatory so the noise doesn't bother me.

Problem is that I don't know how to connect back to the rest of the network that lives in my home office room, where my internet connection also comes in.

The distance is only around 30m point to point.

Anyone have any suggestions?

#homelab