The importance of (savings incentive) lottery houses that emerged in the late 1930 s and served for nearly fourty years as tools in theformation and development of Turkey s accommodation/habitation culture has been largely ignored in architectural history. Temainstream historic accounts based mostly on public buildings or a minimum of civil architectural constructions that may only serve anideological benefit for the dominant narrative, have disregarded the field of lottery houses. Lottery houses have stayed/keptout of thetraditional narrative based on the accommodation culture proposed by the state. Tus, this study aims to investigate the lottery houses process in Turkey, and look at the development of that process, as regards particularlythe buildings produced by İş Bank in Ankara. İş Bank was chosen as the subject, as it was the originator of the savings incentive lotteryhouse plans and it has emerged as one of the most well-established and powerful institutions in the process, producing architecturalconstructions distinctive both in terms of quality and quantity.