david...
since your premises in under_construction. you have Cat6 cable dropped at relevant location on each floor...
use unleashed AP for wifi purpose.
If dropping cable drop is not a possible now then again you can go with Unleashed AP's (R500/R510, R600/R610 and so on) with mesh feature to have better and consistent connectivity.
unleashed is cost effective and shall meet your smart home needs including rogue device detection 🙂