This work focuses attention on the design of a renewed theoretical-methodological device on which a comprehensive Archaeology of Architecture could be based. It brings together the papers from two EAA sessions organized in San Petersburg 2003 and Lyon 2004. The interest in this line of work became evident in both sessions, with outstanding contributions from several European specialists, who at the same time, focused attention on chronological-cultural matters spanning the period from the Neolithic to the Modern Age. It follows on from BAR S1175 (2003) by the same editors. Contents: 1) The Lower Danube Chalcolithic Megaron House with Internal Column: the Technology of Building interpreted through experiments (Dragos Gheorghiu); 2) Liminality and the management of space on Late Bronze Age settlements in central and Eastern Slovenia (Phil Mason); 3) Architectural analysis of monumental motives Towards a methodological investigation into Iron Age drystone roundhouses in Scotland: an interims statement from an architectural perspective (Tanja Romankiewicz); 4) Landscape, Material Culture and Social Process along Galician Iron Age: the Architecture of Castros of Neixon (Galicia, Spain) (Xurxo M. Ayan Vila); 5) The ordinary medieval house: the use of wall stratification in French preventive archaeology of built space (Astrid Huser); 6) Concepts dominants en construction ancienne de maisons dhabitation de la zone forestiere de la region de lOural ouest (Elisaveta Tchernykh); 7) The fortress of Rocha Forte and European military building trends A concentric castle (14th century) (Xose M. Sanchez Sanchez); 8) The Archaeological impact of the Lisbon earthquake (1755): the Archaeology of Built Space applied to the monastery of Santa Maria de Melon (Galice, Spain) (Rebeca Blanco Rotea and Begona Fernandez Gonzalez); 9) Deep-mapping the Gumuz house (Alfredo Gonzalez Ruibal, Xurxo M. Ayan Vila and Alvaro Falquina Aparicio).