Olbia in Provence (Hyères, Var), a Massalia colony, has recently been excavated under the direction of Michel Bats : the complete study of block VI of this Hellenistic city has revealed many workshops specialized in metallurgy in different areas of the same block, which took place from the last quarter of the 4th century B.C. to the middle of the 1st century B.C. Four workshops delivered different structures and slags, all evidencing iron metallurgy activity; they were installed in three different domestic spaces, as they were apparently displaced during each major phase of restructuration of the block. Four of the workshops showed different structures and slags bound to iron metallurgy; they are settled in three different domestic spaces, since they move in each phase when the block is restructured. The presentation of these various workshops and their articulation with life spaces allows to underline the importance of the durability of artisanal spaces and of their topographic establishment.