This paper presents a simple methodology for river flood risk map prediction in an urbanized area. River flood risk map is a function of hazard, vulnerability and exposure. Hence, in this case, water depth and flow velocity (river flood hazard), land-use type, road accessibility and debris flow (vulnerability and exposure) were incorporated. Furthermore, a systematic methodology was proposed in order to develop and predict river flood risk map for a range of defined scenarios. Therefore, a total of 6 scenarios were identified including three rainfall magnitude (20 year, 50 year and 100 year ARI) and two river basin development conditions (existing and ultimate). The risk components were combined in GIS interface and categorized based on a proposed risk value classification. This case study confirms the efficiency of the proposed method to some extent. However, more detailed analysis need to be undertaken towards a well-developed and applicable framework.