Despite the Domain being whittled away in subsequent years it remained an important buffer to the Gardens. The native vegetation was cleared and the gullies of Phillip Precinct filled. During the 1830s the expansive green space of the Domain was now opened to the public, who strolled and picnicked there. The Domain west of Macquarie Street was then sold to pay for the construction of new Government House and Circular Quay. Throughout the 19th century, the south-western part of the Domain was gradually taken up by government and public buildings, including the Hyde Park Barracks, the Sydney Mint, Sydney Hospital, Parliament House, the State Library of New South Wales and the Land Registry Office. The Art Gallery of New South Wales was built on the eastern side of The Domain.