Alster Gate Hamburg

In Hamburg’s Hohenfelde district, the new Alster Gate Hamburg office tower is being built on the corner of Wallstraße and Steinhauerdamm. With two basement floors, 12 full storeys and a staggered storey, the building reaches a height of approximately 50 m. The ground plan of the Z-shaped structure is triangular. The curved, Z-shaped building stands on a triangular plot. It forms two “flanks” parallel to the adjacent streets.

The Goal: LEED Gold Standard

Exterior solar shading measures and opaque facade areas reduce solar radiation. In this way, high-quality summer thermal protection is achieved. At the same time, the facade systems meet increased sound insulation requirements. The building’s heat supply, in turn, is provided by the Hamburg district heating system.

Minimal Power Requirement for Artificial Lighting

A daylight- and presence-dependent lighting control system reduces the electricity demand for artificial lighting to a minimum. The building is to achieve the LEED Gold standard as part of the sustainability certification.

Architecture
gmp Architekten von Gerkan, Marg und Partner, Hamburg/Germany

Planning time
2020 − 2021

Construction time
2020 − 2023

Services by Werner Sobek
Facade planning
Thermal building physics
Architectural acoustics
Room acoustics
Dynamic thermal building simulations
Thermal bridge simulation

GFA
22,420 m²

Client
MAGNA Projektentwicklungs GmbH, Hamburg/Deutschland

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