Construction materials used in Roman buildings in Lucus Augusti were truly varied. The main raw material was local slabs, used generally for building walls and partitioning. The use of granite was very selective, being more widely usedfor the architectural elements (columns, doorways, lintels and cornices); while the use of marble wasvery scarce, due to the lack of quarries in the region. Brick, with its different styles and shapes, was reserved for the construction of small columns and arches supporting hypocausts or for paving.

The wooden roofs of the houses were covered with two complementary construction elements: the flat and rectangular roof tile (tegula) and the curved half round roof tile (imbrix). For the construction of the canals to distribute water in the city, the Romans used lead pipes (fistulae plumbeis), although its use was restricted; but they could also be made of stone or pottery.