In the modern city of Durrёs (ancient Dyrrhachion), near by Sh. Mazreku school, were revealed the remains of an ancient wall structure, 2.80m long, built in reticulate masonry. Remains of a black and white chest shape mosaic (c. 1m²), were discovered on the floor of this building. The material from the excavation consists of: building materials (mainly tiles); pottery vessels (Italian and African Red Slip of Hayes 23, amphorae of Dressel 2-4 type and other locally produced vessel). These materials date from the late 1st century B.C. to the end of the 3rd century A.D., giving thus for a dating chronology for this building. The ruins revealed during this excavation are the remains of the outskirts of a roman building that might have been destroyed by the construction of the Byzantine fortress.