Frankfurt am Main is well-known for its financial centre of Europe and recognised as the German city with the highest concentration of high-rise buildings (“skyline”). For several years now, this construction class has also been discovered for hotel, residential and hybrid usages. After the events of 9/11, high-rise construction came to a standstill worldwide. Which domestic and international developer would want to build the highest high-rise as an investment landmark in a city? Instead, smaller residential towers at a height of 60–80 m were preferred by investors. Twenty years later, the completion of an initial 15 hybrid-use high-rise towers in the city of Frankfurt am Main is expected by the year 2023. Other German cities such as Berlin, Hamburg and Dusseldorf are following similar strategies to implement vertical allocations of property rights in towers embedded in selected privately owned (semi-)public spaces. The amenities include arcades, pocket parks, seating areas, landscape terraces, rooftop bars and swimming pools. We will discuss the renaissance of high-rises, which is a market-based and marketing-based approach following the monetary policy of the European Central Bank, wooing investors at a time of unprecedented speed of construction of tall, particularly hybrid, buildings. In the case study of the ‘Four’ inner-city revitalisation project, located on plots formerly known as ‘ the forbidden town’ of Frankfurt as this area was blocked to the public for decades, we will pay particular attention to the planning department’s right to regulate. The findings presented here are the result of scientific project work conducted in 2019–2020. The local government has imposed a 30% mandatory quota for affordable, subsidised housing rents and price reduced condominiums as legally binding requirements for tower constructions to prevent vertical gated communities. Our essay deals with the central areas of real estate development: land and capital investment.

美因河畔法兰克福以其欧洲金融中心而闻名，被公认为高层建筑（“天际线”）最集中的德国城市。几年来，这种建筑等级也被发现用于酒店，住宅和混合用途。9/11事件发生后，高层建筑在世界范围内停滞不前。哪个国内外开发商想要在城市中建造最高的高层建筑作为投资地标？相反，投资者更喜欢高度在60-80 m的小型住宅塔楼。二十年后，预计到2023年将在美因河畔法兰克福完成最初的15座混合用途高层塔楼的建设。其他德国城市，如柏林，汉堡和杜塞尔多夫正在采取类似的策略，在嵌入选定的私有（半）公共空间的塔中实现垂直分配产权。设施包括拱廊，小型公园，休息区，景观露台，屋顶酒吧和游泳池。我们将讨论高层建筑的复兴，这是遵循欧洲中央银行的货币政策的一种基于市场和市场营销的方法，在高层建筑（尤其是混合型建筑）空前的建造速度下吸引了投资者。在“四个”城市振兴项目的案例研究中，该项目位于法兰克福以前被称为“紫禁城”的地块，因为该地区已经被公众封锁了数十年，我们将特别注意规划部门的权利调节。此处介绍的发现是2019–2020年进行的科学项目工作的结果。当地政府已对负担得起的，有补贴的住房租金和价格降低的公寓征收30％的强制性配额，作为对塔式建筑进行法律约束的要求，以防止垂直封闭式社区。我们的文章涉及房地产开发的中心领域：土地和资本投资。