The reconstruction of Herrenhausen Palace (construction from summer 2009 till January 2013) is an investment project of the Volkswagen Foundation. The real estate develoer is the IVA Kg, a subsidiary company of the foundation. The reconstruction of the facade was rebuilt in neo-classical style taking in account the historic plans of master builder Georg Ludwig Friedrich Laves. According to its new function as a convention center and museum, the interior parts have been altered by the ideas of Office JK – Jastrzembski Kotulla Architects Hamburg. IVA KG has leased the conference center to an external operator.