Typology residential Location Hamburg Construction volume site area approx. 4,730m²; GFA approx. 19,000m² with approx. 11,900m² for 190 rental units (33 % publicly funded), underground car park with 400 bicycle and 50 vehicle spaces with 30% for car sharing Client Moringa GmbH by Landmarken Project developer Landmarken AG Property development competition performed by the City of Hamburg, 2020 Planning from 2020 Realisation 2021 – 2027 Awards ldeenPreis Wohnbau Hamburg 2020, Polis Award 2022, 1st place in the ‘Ecological Reality’ category
The building complex follows the Cradle-to-Cradle principle—the residential high-rise is one of the first in Germany to meet this standard. A high proportion of the construction and finishing materials (excluding the structural framework) can be dismantled, sorted by type, and reused. Healthy materials, extensive greenery to enhance biodiversity, and social diversity are further aspects of the sustainable design.
In the Elbbrückenquartier district of Hamburg’s HafenCity, on the northern shore of the Baakenhafen, a residential complex comprising 217 flats is being built. Three building blocks are arranged around a green inner courtyard. Based on the cradle-to-cradle principle, the building is being assembled with recyclable and non-toxic materials that can be dismantled separately and reused at the end of the life cycle. All in all, the area created by horizontal and vertical greenery is larger than the building’s footprint. The green facade cools and conditions the air, produces oxygen and contributes towards the biodiversity in the city, characterises the residents’ urban realm and enhances the building’s design. In addition to being used as retention space and generate renewable energy, the horizontal areas are intended as exterior zones for private and communal use, for recreational purposes, urban farming, working and communication. The purely tenant-occupied property with variable floor plans and one third subsidized units is designed to accommodate people from different social backgrounds. The building incorporates co-living and co-working space, communal areas, such as kitchens and multi-purpose rooms, which can be booked via an app, a children’s day-care centre and a variety of exterior space on terraces, balconies and in the courtyard.
„As a green oasis, Moringa will contribute towards improving the climate and air quality in HafenCity and, thus, increase the wellbeing of its own residents as well as those living in the neighbourhood.“
Gerhard Wittfeld
The vegetation functions as a “green lung” within the quarter by producing oxygen, reducing particulate matter, binding carbon dioxide and nitrogen, as well as cooling the microclimate in summer. Moreover, it provides a habitat for a variety of animals, increases biodiversity in the urban realm and creates a retreat where residents and neighbours can relax and recharge.
A particular advantage of the planned timber façade is its modular design. The detachable construction allows for easy dismantling and supports the building’s recyclability. The rear-ventilated clay brick façade is fixed to an aluminium substructure, which in turn rests on a timber frame.
Care was also taken to use recyclable materials in the interior fit-out. Instead of a liquid screed, a demountable dry screed was used, complemented by C2C-certified parquet flooring, recyclable carpets and Cocoa linoleum made from cocoa shells. Many manufacturers also offer take-back and recycling programmes for their products.
Large sections of the exposed concrete ceilings and walls were left unclad. The building services were installed as visible surface-mounted systems, which saves on materials and facilitates future dismantling.
„Due to its hybrid mix of uses and wide range of spatial functions, Germany’s first C2C-inspired residential block adds value, benefiting the entire quarter.“
Gerhard Wittfeld
The mixed use of the building is an important aspect concerning the development of a lively quarter. In addition to the children’s day-care centre at ground floor and basement level, the building also includes catering facilities, retail units, as well as event and co-working space.
Module 1
Government-funded units for singles, couples and families (floors 1 to 6)
Children’s day-care centre with outdoor area for 80 children
Retail unit, kiosk
Communal areas
Module 2
Co-living space (floors 0 to 6)
Co-working space on ground floor
Communal areas
Event space
Roof terrace and urban farming facilities
Module 3
Private residential units (floors 1 to 12)
Catering facilities in semi basement
Café on ground floor
Roof terrace
Buildings as material banks
73 percent of construction and finishing materials (excluding the structural framework) can be dismantled, 94 percent can be sorted by type, and 94 percent can be reused. The assessment and coordination were carried out by the Environmental Protection Encouragement Agency (EPEA) in accordance with the Moringa Material Passport. As a result, the building adheres to the principles of the circular economy and urban mining: materials are viewed as long-term resources, material cycles are closed, and waste and disposal costs are reduced.
