From the period of Irish Independence right up to the 1960s there was very little development in Limerick. Housing had become a major problem as many of the city's poorer residents lived in overcrowded slums, streets and laneways in the oldest parts of the city. Life in these parts of the city in the early 20th century are perhaps best described in the worldwide best seller "Angelas Ashes" written by Frank McCourt. During the 1960s Limerick Corporation began to clear the slums and laneways by relocating families to new large council estates on the edge of the city. The estates were built primarily in Moyross, Southill, the Island Field (St. Marys Park) and Ballinacurra Weston. Initially seen to be a success these estates began to experience high levels of disadvantage, unemployment, poverty and crime as was replicated in other parts of Ireland such as Ballymun. Today the estates can be described as Sink estates and are awaiting a massive regeneration project.