Development of retail in the Czech Republic in the period of economic transformation after 1989 went through crucial changes including both privatization process in the first half of the 1990s and introduction of foreign retail concerns to the Czech market in the second half of the decade. The latter phase of transformation of the Czech retail influenced significantly formation of new network structure of retail. Its origin is related to process of spatial innovation diffusion of large-format sale concepts (super- and hypermarkets, discounts, shopping centres etc.) into the Czech environment, which took place during relatively short period. As presented by some studies (GfK Praha) adaptation of these concepts in the Czech Republic ranks among the highest in comparison with other post-communist countries in Europe. The most frequent type of diffusion was expansive hierarchical diffusion typical of hypermarkets, hobbymarkets, other specialised outlets and shopping centres.