Historic Custom House, Greenock's Custom House Quay, Inverclyde, Scotland, UK at night

In 1714 Greenock became a custom house port as a branch of Port Glasgow, and for a period this operated from rooms leased in Greenock. Receipts rose rapidly with the expansion of colonial trade, and in 1778 the custom house moved to new built premises at the West Quay of the harbour. By 1791 a new pier was constructed at the East Quay. In 1812 Europe's first steamboat service was introduced by PS Comet with frequent sailings between Glasgow, Greenock and Helensburgh, and as trade built up the pier became known as Steamboat Quay. The custom house needed larger premises, and in May 1817 the foundation stone was laid at the quay for a Custom House building designed by William Burn, which was completed in 1818. Its gracious neoclassical architecture features a Grecian Doric portico looking out over the quayside, which was given the name Customhouse Quay. In 1828 the Custom House was praised as "a grand National Structure" in "the highest style of elegance". By then there were scheduled steamboat sailings to Belfast, Londonderry, Liverpool, Inverness, Campbeltown, the Hebrides and "all the principal places in the Highlands". The Custom House underwent extensive refurbishment which was completed in 1989 and, until closure of the building in 2010, housed a customs and excise museum which was open to the public. In June 2008 HM Revenue and Customs (HMRC) announced that the building would close in 2011 as part of a rationalisation project with any jobs being transferred to offices in Glasgow, and despite a campaign to oppose these plans, the building closed in August 2010. Riverside Inverclyde arranged further refurbishment works, and in 2013 announced that space had already been let to companies including PG Paper Company Ltd and Toshiba which had planning permission to form meeting rooms and an executive office in the building. Greenock Telegraph estimated that £4.1 million has been spent over 5-year period for the renovation works