Walls and ceilings of the different rooms in the houses were decorated with murals. Although murals in Lugo are frequently discovered, their poor state of preservation, due to the degree of degradation of the supportive structures or walls, barely provides us with rebuilding patterns and decorative compositions. Nevertheless, pictorial fragments with contrasting bright coloured band decorations or, rather less bright colours such as grey and ochre are often found.

Geometrical motifs prevail, in both the separation and framing bands within the panels; but we can also find multiple examples of motifs that imitate the different types of marble (frequently used on the wall socles) or the vegetable and floral compositions, such as the astonishing decoration in House of the Mosaics, part of which were saved and restored. The variety of colours and the excellent finish of most of the recovered samples prove the existence in Lucus of a team of painters who perfectly mastered decoration techniques and knew the fashion trends that prevailed in the rest of the Empire.However, one of the unique complexes of Roman artwork is in a rural location: in the low area of the monument of Santalla de Bóveda.