years. Festival moved its facilities to a site in nearby Pyrmont in 1966. In 1973, the Builders Labourers Federation organised a green ban with Pyrmont to stop the construction of the North-Western Expressway, which would've destroyed large parts of both suburbs. Subsequently, many industries began to move to cheaper land further from the CBD, and the decline of the wool industry made Ultimo's 15 woolstores redundant. By the start of the 1980s, derelict industrial sites began to be redeveloped for residences, mostly as apartments, a process that continues to the present. Very little industry remains in the area, and its current character is a combination of residential and commercial. One conspicuous industrial relic is the brick shell of Davey's Flour Mill, built in 1911, and adjacent to the southern approach to the Anzac Bridge. The Dairy Farmer's Cooperative operated from its facility in Harris Street and Ultimo Road from 1912 to its closure in 2009, after which the site was redeveloped by the nearby UTS in a project designed by architect Frank Gehry. Wentworth Park commenced its life as a creek and swamp, known from the 1830s as Blackwattle Cove Swamp. Wentworth Park became a rugby league oval and the home ground of the Glebe Dirty Reds who were a part of the New South Wales Rugby League premiership back in its inception. Since 1991, the national public broadcaster, the Australian Broadcasting Corporation has been headquartered in Ultimo. Heritage listings Ultimo has a number of heritage-listed sites, including: Darling Harbour goods railway: Ultimo Road railway underbridge 494 Harris Street: Ultimo Post Office 41 Mountain Street: Ultimo Substation William Henry Street: Ultimo Sewage Pumping Station Churches One of the landmarks in the area is the Uniting Church on the corner of Quarry Street and Bulwara Road. The church was originally built in 1883 to replace the old Presbyterian Church at Mount Street, Pyrmont. The latter had been the first Presbyterian Church in the colony, but it outgrew its old premises and the congregation had to move to the new church in Ultimo. A manse was built a few years later. By 2001 the church was in bad repair and had to be restored with help from a government grant. The church is still active and the congregation goes by the name of The Mustard Seed. Commercial area of architecture The commercial areas of Ultimo are mainly centred on Broadway, Harris Street