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The original was posted on /r/homeassistant by /u/petyusa on 2025-12-27 08:40:50+00:00.
Hi everyone,
My family (2 adults, 2 small kids) is about to move into a new 130m² (approx. 1400 sq ft) apartment. We plan to live here for the long term, so I want to build a rock-solid foundation for my smart home.
I’m a software engineer, so I’m comfortable with the software side (HA, scripts, networking), but right now is my only window to run cables behind the walls.
Here is the floor plan of the apartment:
https://preview.redd.it/itgttdhblp9g1.png?width=1280&format=png&auto=webp&s=0568aa6448a9783435da5b8eaf921fb805947688
Hardware & Infrastructure planned:
- Networking: UniFi Dream Router (UDR) as the base, paired with a 16 or 24-port UniFi PoE switch.
- Ethernet everywhere: Dedicated Cat6a runs to every room, the home server, PC, and future console spots.
- Deep wall boxes: Every switch will have deep boxes to fit smart relays (Shelly/Sonoff) comfortably.
- Central Tablet: A wall-mounted dashboard with a dedicated PoE Ethernet run.
- LED Lighting: Ethernet runs to every location where I'll have LED strips for QuinLED controllers (WLED).
- HVAC: The apartment has a ceiling heating and cooling system. Integrating this into HA is a priority, especially for dew point monitoring during summer.
The Question: Since the walls are still open (Ytong/brick), what am I missing? What are those "I wish I had a cable there" moments you've experienced?
I’m thinking about mmWave presence sensors, motorized curtains, or specific sensors for the ceiling HVAC. If you were in my shoes with a clean slate and a dev background, what infrastructure would you prioritize to make the home future-proof for the next 10+ years?
Looking forward to your suggestions!
