Two seasons of archaeological excavation in Mäsiarska 57/A Street in Košice are a great contribution in the exploration of the development of municipal houselot. The explored area offered a possibility of relatively extensive view, both from the spatial as well as chronological aspect on a lot which (as far as its location in municipal built-up area is concerned) was one of rather peripheral lots, and, as regards the settlement intensity, the less exposed ones. The archaeological excavation detected features of various natures. In addition to simple sunken features – the pits of undoubtedly short duration, there were detected also ground features of regular shape, sometimes also with indications of building construction, where the ambition of their longer duration has to be counted with. Even longer duration must be expected in the case of features with solid wooden building construction, which could be functional for one or two generations. The most durable are stone walled features, specifically the more extensive buildings with solid and deep foundations. As regards the chronological aspect, it may be stated that thin settlement in the High Middle Ages (13th – 14th cent.) became significantly more intensive in Late Middle Ages (15th cent.), and culminated in the older Postmedieval Period (16th – 17th cent.). In the younger Postmedieval Period (18th – 19th cent.) the settlement function of the lot gradually perishes and changes only to an un-built area, originally with a garden arrangement. Later on, this function is degraded as well. The study also discusses the finds obtained from individual settlement features and situations.