Many electronic government (e-Government) initiatives in Sub-Saharan Africa, of which Nigeria is a part, have proven to be largely unsuccessful. However, the need for effective e-Government initiatives still remains obligatory. Lagos State in Nigeria is no different to other states where e-Government is necessary. The purpose of this study is to investigate factors that influence the successful implementation of integrated e-Government in a specific sector, in particular the housing and urban development sector (HUDA) in Nigeria. To accomplish this, a quantitative research approach was adopted based on a conceptual framework, which is grounded in the technology-organisation-environment framework and drivers-barriers model. Questionnaires were administered to the officials of the 5 public sector organisations involved in issuing building permits to the citizens to elicit their views. The analysis revealed that the factors that influence integrated e-Government implementation in Lagos, Nigeria, relate to technological, organisational, and environmental factors, including benefits and barriers identified. The regression analysis showed that these constructs account for a significant 23.1% f variance on the acceptance of e-Government integration in HUDA. The study highlights implications for practice and research, as well as future research directions. However, the mere use of technology is not enough, but the systematic approach to the use of information and communication technology (ICT) in the public-sector organisations is what needs to be effective. The past decade has seen the rapid development of ICT in many sectors of the government such as health and education. According to Maumbe, Owei, and Alexander (2008), the application of ICT-based initiatives for improving internal processes and government public service delivery is referred to as electronic government (e-Government). Globally, the public sector is charged with the growing demand of reforming their policies and making government more responsive to the citizens' needs.In Nigeria, people are responsible for erecting their own houses or physical structures, provide water, and generate their own power to enjoy a steady supply thereof. Unlike the operations in other parts of the world where local governments or councils are responsible for the issuance of housing development licenses and the purchase of property, in Nigeria, it is the remit of the state government to grant development licenses without which one cannot commence construction. The citizens are now saddled with the responsibility of buying land, which is more easily attainable than buying a house provided one has the funds. However, the process of acquiring development licenses to build houses has proven extremely difficult. Furthermore, beside the approved statutory fees and transaction cost, securing a development permit from the housing and urban development agencies (HUDAs) in Lagos State, more often than not, involves many processes. This process entails endless paper work, lack ...