There is a rumour doing the the rounds at the moment that the Mercadona in Almerimar might be moving in the next couple of years.
Apparently, Mercadona lease the property at their current location rather than own it themselves. The rumour is that the owners of the freehold (the urbanisation(s) of properties nearly) are unhappy with the overnight noise of deliveries and the difficulty parking near their urbanisation. Also, perhaps Mercadona would prefer to own their own premises.
So it sounds like there may be a plan being hatched for Mercadona to relocate to another place in Almerimar in the next couple of years. I guess we will have to wait and see.