During the construction of the New Town, the polluted waters of the Nor Loch were drained, and the area was converted into private gardens called Princes Street Gardens. This was taken over by the Edinburgh Council in the late-nineteenth century, by which time most of the street was commercial and there was no great need for private residential gardens. The width of Princes Street was greatly increased soon after, onto what was the northern edge of the gardens. Due to the much lower position of the gardens this led to the creation of the steep embankment on the north side, still visible today. The gardens are one of the many green spaces in the heart of Edinburgh.