Refurbishment and revitalization of the existing Arne Jacobsen House in Hamburg

• Plot area: approx. 29,844 m²
• Gross floor area: approx. 50,718 m² GFA
• Converted space: approx. 184,638 m³ BRI
• Number of full storeys above ground: 13
• Number of storeys underground: 2
• Building length of the administration tower: approx. 152.80 m
• Building width of the administration tower: approx. 30.79 m
• Building height above ground: approx. 44.35 m

• Façade, demolition from August 2025 to June 2026
• Façade, installation from October 2025 to October 2026
• Shell construction from November 2025 to February 2027
• Cement screed from February 2026 to December 2026
• Interior plastering work from January 2026 to May 2027
• Completion 30.09.2027

• Monday to Friday 07:00 to 18:00
• Saturday 07:00 to 14:00
• There is generally no work on Sundays and public holidays.

Resource-conserving construction methods and measures to increase energy efficiency save CO₂ emissions. While the old façade of the high-rise building is being removed floor by floor in the middle and upper areas, floors in the lower area are already being closed with the new façade in order to reduce the overall construction time as well as the need for construction heating in the colder months of the year, thereby saving CO2 and energy.

As part of the lean approach, a production plan with call-off dates (e.g. insulation) was created. Construction production planning is detailed on a weekly basis and adapted to actual production progress. Changes in the construction process are constantly taken into account and just-in-time deliveries can be better implemented. Repeat orders and new orders due to late changes to the plan are avoided.

Turnkey revitalization of the high-rise building built in 1969. It has impressed for decades with its clear lines, minimalist forms and detailed interior design. Today, more than half a century after its completion, the project has created a place that focuses on the needs of modern working environments - versatile, sustainable and creative.

The project is located on a spacious site with green outdoor areas and no directly adjacent buildings, so there are few residents. Nevertheless, the aim is to avoid or reduce the impact of the construction site as much as possible.

It is planned that all motorized equipment and machinery used on the construction site, e.g. construction machinery, compressors and lifting equipment, with an output of over 75 kW will be documented and it will be recorded which EU level (energy efficiency class/EEK) they meet in order to ensure that the most energy-efficient construction machinery possible is used.

Where possible, regional companies and suppliers are used in order to reduce transportation and working distances.

The risk of accidents is reduced through the creation and application of comprehensive health and safety measures. Hazard analyses are used to identify potential hazards for each trade in advance and possible prevention measures are defined. In addition, the risk of accidents is reduced through the creation and application of comprehensive safety and health documents. They also help to maintain staff performance.

Before the order is placed, material declaration lists are used to check whether the building materials and components comply with the recognized rules of technology and the contractual agreements. A target/actual comparison of the delivered building materials is carried out by means of incoming goods inspection. Before and during the execution of construction work, compliance with technical regulations is documented using quality inspection plans.

An effective waste management system will be set up for the project. Targeted waste sorting and separation will take place on the construction site. This ensures that the resulting construction waste is properly disposed of and/or recycled.