SIGNIFICANT WASTE FACTORS INFLUENCING DELIVERY COST PERFORMANCE OF DESIGN AND BUILD LOW-COST HOUSING PROJECTS IN IMO STATE NIGERIA

Abstract

Effective performances particularly on Low-cost housing projects has been a major problem in many developing countries. In Nigeria, public sector clients have adopted the design and build (DB) procurement strategy as one of the strategies to deliver Lowcost housing (LcH) projects following potential benefits to facilitate improved performances particularly as it pertains to project cost. Yet, many design and build low-cost housing (DBLcH) projects are not delivered within expected target cost performances resulting from the influences of waste factors amongst several others identified. This paper aim to identify the waste factors that significantly influence poor cost performances of DBLcH projects based on the investigation of the LcH sector in Imo State Nigeria. A mixed method design, using literature review and survey questionnaire, was adopted in this study, to identify and validate contextual waste factors influencing DBLcH project cost performances. Findings revealed the significant waste factors influencing poor cost performances of DBLcH projects. This study’s findings is expected to increase the awareness of the project team on the significant waste factors that will need to be mitigated towards improving the cost performances of DBLcH projects in Imo State Nigeria.