Middlesbrough number of major roads including the A19 (north/south), A66 (east/west), A171, A172 and A174. In the past Middlesbrough has been served by the Middlesbrough, Stockton and Thornaby Electric Tramways Company, Imperial Tramways Company, Middlesbrough Corporation Tramways, Tees-side Railless Traction Board and Teesside Municipal Transport. In the suburb and former village of Acklam, Middlesbrough's oldest domestic building is Acklam Hall of 1678. Built by Sir William Hustler, it is also Middlesbrough's sole Grade I listed building. The Restoration mansion, accessible through an avenue of trees off Acklam Road, has seen progressive updates through the centuries, making a captivating document of varying
Middlesbrough 16% of Middlesbrough's population in 1871. Business in Middlesbrough is still dominated by the nearby chemical industry which until 1995 in this locality was largely owned by Imperial Chemical Industries (ICI). The fragmentation of that company led to many smaller manufacturing units being owned and operated by a number of multinational organisations. The last part of ICI itself completely left the area in 2006 and the remaining companies are now members of the Northeast of England Process Industry Cluster (NEPIC). The port of Teesport, owned by PD Ports, is also vital to the economy of Middlesbrough and the port owners