In most developing countries, existing public financial institutions do not fulfil the requirements for financial resources which are needed for critical inputs in construction. The few available financing institutions have had little impact. The normal practice in private sector low-income shelter construction is to depend on the builder's own finances, which are often limited. Public sector low-income shelter construction is often more vulnerable to limitations of cash flow.
Experience in housing finance development the world over demonstrates that broad, market-based systems are the most effective vehicle through which to provide financial resources for shelter development. Enabling shelter strategies imply a shift from a direct government construction effort to the encouragement of indviduals, small-scale enterprises and large contractors. Such operations tend to be more employment-intensive and involve unskilled workers.