The key to a robust small home is Bluetooth wireless. The wireless connect is what gives you the ability to control remotely. As long as your app on your smartphone can connect you have control.
When I do a remodel I can incorporate smart controls. It does usually take some wiring and with the walls open up a remodeling project is the perfect time to retrofit your home. Everyone’s list of automation functions differ, but the most popular are controlling your alarm system and your keypad at your front door. How easy is it to unlock the front door and turn off the alarm when you’re expecting house guests before you get home from work?
And how about landscape watering? When you’re away on summer vacation and there’s an unusually hot stretch at home. It makes it so easy to add an additional water cycle.