Alpha Tower is Grade II listed office skyscraper in Birmingham, England. It was designed by the Birmingham-born architect George Marsh of Richard Seifert & Partners as the headquarters of the commercial television company ATV (Associated Television) and part of the company's production studio complex known as ATV Centre, an adjacent shorter tower was planned but was never built. ATV closed in 1982, after which the building became offices. Birmingham City Council took a large tenancy of the building until they vacated in 2010. It is the third tallest building in Birmingham and the tallest office building in Birmingham.Building and architectureIt is a Grade A locally listed building. It was nominated for listed building status by the Twentieth Century Society in 2002, although the owners applied for a Certificate of Immunity from Listing. However, English Heritage added Alpha Tower to The National Heritage List for England on 31 July 2014.