Greater Manchester spans 493 square miles (1,277 km2), which roughly covers the territory of the Greater Manchester Built-up Area, the second most populous urban area in the UK. It is landlocked and borders Cheshire (to the south-west and south), Derbyshire (to the south-east), West Yorkshire (to the north-east), Lancashire (to the north) and Merseyside (to the west). There is a mix of high-density urban areas, suburbs, semi-rural and rural locations in Greater Manchester, but land use is mostly urban—the product of concentric urbanisation and industrialisation which occurred mostly during the 19th century when the region flourished as the global centre of the cotton industry. It has a focused central business district, formed by Manchester city centre and the adjoining parts of Salford and Trafford, but Greater Manchester is also a polycentric county with ten metropolitan districts, each of which has at least one major town centre and outlying suburbs.
In 2002, Wallwork moved to West Bromwich Albion, where he was the Player of the Year for 2004–05. He was not always a regular in the side however, and spent time on loan at Bradford City, Barnsley and Huddersfield Town. His spell at Barnsley was cut short when he was stabbed in a nightclub, causing him to miss more than two months of the 2006–07 season. Wallwork was transferred to Sheffield Wednesday in January 2008, but was released just four months later and has since been without a club.