In October 2012, the new gate A-Plus Terminal 1 of Frankfurt Airport was comissioned. Thanks to the extension, the terminal can now handle even more large-capacity aircrafts. The extension houses a large variety of retail and catering trade shops, it is also fitted with state-of-the-art terminal fittings and furnishings. The extension raises the terminal's capacity by 6 million passengers per year. In addition to the extension, five new Lufthansa Lounges were put into comission. Lindner was also responsible for the fit-out of these Lounges.