The paper presents the results of the excavations and studies undertaken from 2017 to 2020 by the team of the Uşaklı Höyük Archaeological Project. Uşaklı Höyük is a multi-period site, with evidence of permanent settlement dating from the late 3rd millennium BC onwards. The main period of occupation dates to the 2nd millennium when the site hosted an important Hittite settlement. Excavations of both the lower town in Area A and halfway down the southern slope of the citadel in Area D revealed the presence of imposing buildings made of large granite blocks, which must have been two of the principal public buildings of the town during the Hittite phase, evidencing the greatest urban development of the site. The impressive architecture in grani...