Successive administrations in Nigeria have expended several efforts on housing delivery through either the traditional (TRD), or public-private partnership (PPP) procurement route among others. Considering the relationship between housing demand and supply, there is no record of meaningful achievements due to several factors. This study explored the factors affecting the cost performance of TRD and PPP with a view to enhance their performance. Eighty questionnaires retrieved from two sets of respondents were analysed on housing project at Suleja, Niger State, Nigeria. Mean score and Mann-Whitney test were used to assess the influence of these factors, and test the significance of the difference between the views of both set of respondents. The study revealed that economic conditions, unforeseen ground conditions and cash flow/finance as the key factors influencing TRD, while fluctuation in prices of materials, late delivery of materials, and economic conditions are the key factors influencing PPP.