The 60-metre-high residential tower at Hardturmstrasse 5 was built by Allreal in 2014 and designed by e2a Architekten. The building combines modern living with an industrial identity and incorporates the model warehouse from 1900, which is now used as the rehearsal stage by Zurich Opera House. With 51 rental apartments in a central location in the Escher-Wyss district, the property offers an urban lifestyle for people who appreciate modern design and culture.
| Ownership status | condominium ownership |
| Year of construction | 2014 |
| Area of property in m² | 2 651 |
| Other uses in m² | 14 |
| Renovation | - |
| 1–1½-room apartments | - |
| 2–2½-room apartments | 17 |
| 3–3½-room apartments | 27 |
| 4–4½-room apartments | 6 |
| > 5-room apartments | 1 |