Hey !
As our house is mainly underground the front door is above ground . It will no doubt become a pain going upstairs to answer the door . So a electronic activated lock seems the answer with Cctv - so door can be opened remotely for us lazy people .
Another aspect that could be added was a finger print scanner to unlock the door externally - wife always fluffs to find the front door key ; but it’s £700
So ; I was trying to think of a way that simply her having her phone and being in the presence of the door and outside would cause it to unlock .
Any ideas ? - assume this would be somewhat cheaper than £700 !!