He added that, "as it is their primary role to assess the physical effects of proposed development on a historic environment, further analysis was needed to find out the communal value of the Undercroft is necessary to ascertain the impact on recent cultural heritage". In September 2013 English Heritage published the following statement on its website. "In 2012 the Department for Culture, Media and Sport granted the Southbank Centre a Certificate of Immunity from listing. This Certificate is valid for five years and during this period the building cannot be considered for listing. The decision cannot be challenged until this time has elapsed which, in this case, means June 2017. We appreciate the community value of the skate park and welcome the Southbank Centre’s commitment to providing a new one not far from the present location." Kate Hoey, MP for Vauxhall, was initially in favour of the development and was quoted in the March press release as saying "Southbank Centre has played a leading role in helping to transform the Southbank into London's top destination and this project will make the South Bank one of the world's most vibrant areas". Kate Hoey has since become an active MP in the movement against the plans. On 27 June Hoey presented the 40,000-signature petition (which was later replaced by a preservation statement with 150,000 signatures) to save the Southbank skate area to the House of Commons. She spoke to the House and advised that the Undercroft is a ‘culturally and historically important area of the South Bank’. Hoey has also become active on her Twitter site in support of the campaign. The Twentieth Century Society initially welcomed the development and was pleased by the Southbank Centre’s enthusiasm for redevelopment of the existing buildings. However, they felt frustrated that neither Southbank Centre nor their architects addressed the society's concerns regarding the size of the building in the pre-application meetings. Director Catherine Croft wrote that the Twentieth Century Society were "deeply disappointed" that they cannot support the Southbank Centre’s scheme. The organisation feels that the proposals are "too big and over ambitious" and will dwarf the neighbouring National Theatre’s Howarth Tomkins scheme. Furthermore, the society recognise the "immense interest and opposition" that has been generated by the plans to relocate the skateboarders. They feel that the skateboarders "bring a unique visual and cultural interest" to the South Bank and feel that the Southbank Centre has not "fully appreciated" the "communal value".