Kano City Walls and Associated Sites (KCWAS) was included in to the United Nations Education Scientific and Cultural Organisation (UNESCO) tentative list of World heritage sites 2007. Since then, the heritage site has failed to make the substantive list of World heritage sites due to poor management. The Federal, State and Local governments through the National Commission for museums and monuments, the Kano Tourism Board, the Kano Urban Planning Development Authority (KNUPDA) and the Kano Emirate council are the major decision makers on the heritage site. These bodies were establish by different legislation, having different mandate with poorly defined procedure and decision making criteria in managing the heritage site. Both spatial and non-spatial information sharing are done using paper files which takes a long time for stakeholders to be on the same page on the decision making table. Correspondences, updates and reports generation in maintenance, monitoring and evaluation is proving impossible. The Government established the Committee for the Protection and Preservation of Kano City Walls and Associated Sites (CPPKCWAS) to draft the proposal for the UNESCO nomination which is made up of representatives of all the major stakeholders. This initiative emerged as the viable direction of managing the heritage site. KCWAS which is rated the tenth amazing ancient wall around the world and finest tourist attraction in Nigeria, is a place of spiritual, historical and cultural significance shinning as a fascinating evidence of African’s indigenous use of its architecture to define and organize spaces for government, spiritual activities, commerce and defence as a critical heritage. It is a cultural heritage asset that exhibits centuries old enormous ancient evidence of existing customs, whose active role in the present city landscape confers on KCWAS the status of an invaluable urban heritage. Dala Hill is known to be the base of the first settlement in Kano city and it created the nucleus for the people of Kano city and was the foundation of its economic and political development. The study involved inquiry in to Heritage management practice of KCWAS which directed it’s qualitative research to collection of narrative data in a natural setting in order to gain insights in to the heritage site management with view of proposing a web based collaborative SDSS to help improve management of the Heritage site. The conceptual design of this projected was based on Densham, 2011’s SDSS Functional Requirement Study (FRS) methodological workflow. This research studied the legislation mandating the major stakeholder, in the management of KCWAS and decision making structure and process, including the likely changes in the future. It analysed the information needed to support this decision making process and the data, GIS and modelling requirements. All these requirements are harnessed in single interface of a web based collaborative Spatial Decision Support System (SDSS) which proves be a potential future of heritage.