The selection of sites below reflects some of the most distinctive additions of 2012, arranged according to a number of themes, which reflect a dominant and continuing interest in sites that illuminate the urban and civic characteristics of archaeological locations in mainland Greece.

Among the important discoveries of 2012 was the prehistoric stone pile and chamber tomb cut into bedrock at the Early Helladic cemetery of Asteria (ID3306), near Glyphada, Attica, which is discussed by David Smith below. The tomb was repeatedly reused: it contained one strongly contracted skeleton in front of the door and a pile of bones in the east half of the chamber representing at least 20 individuals (17 adults and three children). M. Pantelidou Gofa (ASA) reports on the 2012 season at Tsepi, Marathon, where a new deposit was investigated outside tomb 39, as well as two new tombs, 56 and 58 (ID3311), noting that Tomb 56 has all the known characteristics of the Tsepi tombs: rectangular with a built chamber, walls and threshold.

In the Athenian Agora, investigations continued in 2012 of the Hellenistic and Classical road levels of the Panathenaic Way. John Camp reports the following on behalf of the ASCSA (ID2893, cf. ID2471).