selling an apartment on the coast in spain

[angelita]

Hello, I would like to clarify if according to the Ley de Costas is it still possible to sell an apartment?
It was originally purchased in 1976, before this law was put into practice in the 1980's. The building is a small block of 6 flats and is quite far back from the coast, on the sand dunes. The owner has never received any letter of notification about it being in the coastal delineation.