The purpose of this paper is to make a review of renewable energy generation and recovery from untapped bio-energy resources within the present Lagos metropolis.The efficient use of bio-energy has been tagged as part of the solution to be adopted for emission reduction, and as a necessary inclusive tool towards creating a sustainable city. Most cities in Nigeria are faced with a waste management problem. The insufficiency of services results in deterioration of the urban environment. The focus of this thesis is on creating a sustainable Lagos city by utilizing the opportunities that come with the utilization of untapped biomass resources. In order to fulfill this purpose, the present waste management methods were analysed, data was collected in the form of books, articles, journals, online sources and some interview were carried out. In the last few years, a lot of laudable actions have been achieved in Lagos waste management, but with the annual increasing population, the challenges seem growing in bounds. The research was carried out within the scope of the CONNECT project. The study lays emphasis on potentials of efficient municipal solid waste management, sawdust utilization and proper engineering and management of landfill sites. A well planned integrated waste management, which includes efficient solid waste, landfill gas and sawdust utilization, will take Lagos city to the path of sustainability.