in Ireland were landed at Bristol and then herded across England on drovers' roads to Smithfield, London, passing through Calne. The factory started in the second half of the 18th century when brothers John and Henry Harris started businesses which merged in 1888 as C. & T. Harris & Co. The factory has now been fully demolished and its site redeveloped as shops, housing and a library. As a result of the closure, unemployment in the town increased considerably and during much of the 1980s Calne suffered many of the economic restructuring problems more usually associated with large cities. Economy During the late 1990s and early 2000s, Calne saw rapid expansion compared to most other towns in the South West region, with a population which the district council projected to peak at around 19,000 by 2015 but which has since been surpassed. The Lansdowne Park housing development (completed in early 2007) has substantially increased the size of the town, creating a new northwestern suburb, including a new primary school, a medical centre and a small shopping area. This area has attracted professional workers from traditionally more expensive areas such as Bath, Bristol, Marlborough and as far afield as the 'silicon valley' towns of central Berkshire. The development's name reflects its proximity to the seat of the Marquess of Lansdowne, whose family have owned the nearby Bowood House country estate since 1784. The Porte Marsh Industrial Estate on the north side of the town provides the bulk of the town's internal employment, and is home to around 100 companies in predominantly light industries and information technology. The Belgian company Deceuninck has invested considerably in this area and operates two large facilities for production and distribution. Another significant employer is the Exception Group, an electronics manufacturer which, as of 2013, was the town's largest employer with some 220 employees. In 2006, plans to build a cement production plant on the Porte Marsh site were vigorously opposed by local residents and planning permission was refused by the council. Aside from the completion of Lansdowne Park, smaller pockets of new housing were built. A £900,000 Football Foundation outdoor facility at Beversbrook, on Calne's northern edge, opened in April 2009. Retail Calne has Sainsbury's, Tesco and Iceland supermarkets, and an intermediate-sized Tesco store on the northern edge of the town. As part of the New Heart of Calne initiative, a section of the Phelps Parade