The paper presents the system and methodology of digital census documentation of architectural heritage, which was first time adapted and applied to the heritage of Upper Kama region. The results and cataloguing process for the historical cities of Usolye and Cherdyn are described. The main objective of the study is the structuring of information through the definition of morphology and architectural features of objects. The cataloguing idea is to describe all the architectural and urban environment elements in the historical cities Usolye and Cherdyn, and attach to the map layer-by-layer using geographic information systems. The catalogs rely on reality-based data collected using architectural survey methods. Heterogeneous information about objects is structured through a system of codes and summarized in a single database. The resulting system of digital documents designed to coherent store and simple search of information about the architecture are introduced in the article.