The colombian current housing policy is not addressed to the informal sector families demand, in spite of the clear majority they represent in the potential demand for low cost housing. This article briefly describes some relevant issues of the low cost housing market and attempts to examine the informal sector participation in the growth of Bogotá, on the basis of the decade of the seventies. Moreover, there are sketched some former policy components that were applied in the seventies but, in spite of their relevance, they were abolished some years later. Finally, policy guidelines are proposed, towards the inclusion in the current housing policy of the informal sector demand.