Construction cost information management in Nigeria

Quantity surveyors are the hub of construction cost control in Nigeria. A total of 29 quantity surveying firms were surveyed using a structured questionnaire, augmented with formal interviews, with a vieW to determine the sources of, and how, cost information are managed in the country. An analysis of contractors' tenders is the cheapest, fastest and most frequently used source of cost data. More reliable sources, such as market surveys and the technical press, are referred to less often. Greatest constraints identified against adequate management of construction cost information are with respect to insufficient design information, unavailability of relevant database and fluctuating construction input prices.