Maritime Provençal
Oustau basti, vigno plantado.
Meaning
A house already built, a vineyard already planted.
Note : To indicate that a house already built costs less than one still to be built.
Theme
Source : La Tour-Keyrié, Recueil de proverbes provençaux (1882), Gallica — public domain. Maritime Mistralian normalisation by Lingua Nostra.