Mikuláš retired from mining in 1976. He spent the rest of his life in the Píly Housing Estate in the city of Prievidza, close to Handlová. Mikuláš and his wife were the first two inhabitants of the housing estate. Mikuláš was highly involved in its development, which he saw as integral to improving living conditions of miners as it was developed chiefly to provide adequate housing for the miners of the region.
