Lighting control for new house
I will be building a new house (in Europe) and I am looking for lighting control solution for my open plan ground floor + garden, that can meet the following requirements:
1. Ability to easily choose scenes, preferably with a keypad with physical buttons
2. Nice looking switches / dimmers, that will not take too much space on the walls
3. Ability to integrate with Harmony and/or SmartThings
4. Reliable, either using open standards or by a company that will most likely continue to support its products for decades
5. Not too expensive
I came across Lutron, and I like the keypads of RA2. However RA2 doesn't seem to support Harmony and SmartThings and I suspect it could be quite expensive. Caseta and RA2 Select support Harmony and SmartThings, but seem to have more basic keypads with less functionality. Also, the dimmers of Lutron in general seem to be available only with the US standard, which takes up a lot more space on the wall.
Another company I found is LightwaveRF. They have more compact switches which look nice, and they support IFTTT (so I guess Harmony and/or SmartThings also). But it seems that they don't make Scene keypads anymore, and I doubt they are anywhere as reliable as Lutron.
Any other suggestions?
The house isn't build yet, so I can do it any way I want. That said I would prefer to follow some standards with wiring, just in case I need to replace the whole system with something else in the future.