The world-wide trend towards a growing urbanization mainly affects suburban areas. These areas are subject to rapid modifications such as an increase of impervious areas, concentration of runoff in sewer systems, river regulations, but also a decline of agricultural areas causing a forest increase. These changes have an impact on the local hydrology and can induce floods, pollution or decrease of groundwater resource. Distributed hydrological models are useful tools for water management in these areas. They can simulate floods or the impact of land use scenarios on the water balance. This paper presents the PUMMA model (Peri-Urban Model for landscape MAnagement), dedicated to the hydrology of suburban catchments. The model is built within the LIQUID® modelling framework. LIQUID® facilitates the development of PUMMA by providing a set of modules for different hydrological processes, templates for easy development of new modules and module coupling mechanisms. PUMMA follows an object-oriented approach. The landscape is discretized into cadastral units in urban areas and irregular hydrolandscapes, resulting from intersection of land use, geology, soil and sub-basin maps in rural areas. Each model unit represents one implementation of a module. The considered hydrological processes are infiltration in natural soils and hedgerows; overland flow in urban zones and over roads, storage in storm water retention basins and flow routing within networks consisting of ditches, natural rivers and sewer pipes. Several drainage networks can coexist and interact, which allows the modelling of complex suburban drainage systems. The paper presents the model structure and a first application to a simple test case.