Prime Tower

The 126-metre-high office tower features retail floor space, a bar situated on the ground floor and a publicly accessible restaurant with bar and lounge on the top floor. Tenants primarily include clients from the upscale services sector.

Address Hardstrasse 201, 8005 Zurich
Number of floors 36
Height 126 metres
Total workplaces approx. 2 000
Rental floor space approx. 40 000 m2
Volume approx. 228 000 m3
Parking places (including Platform) approx. 250
Environmental labels LEED Gold, Leadership in Energy and Environmental Design
greenproperty, the Credit Suisse AG seal of approval for sustainable real estate


The annex building Diagonal has undergone restoration and comprises a restaurant located on the ground and first floor as well as two international art galleries situated on the second to fourth floor.

Address Maagplatz 3, 8005 Zurich
Number of floors 5
Total rental floor space 2 100 m2
Maximum rental floor space per floor 550 m2
Volume 18 000 m3


The annex building Cubus offers floor space for small offices and an archive. The building is also home to tenants such as a training centre, child day-care facility and convenience food shop.

Address Hardstrasse 221, 8005 Zurich
Number of floors 7
Total rental floor space 5 300 m2
Maximum rental floor space per floor 810 m2
Volume 35 000 m3


The Platform commercial building, with spacious atrium as entrance, is the new Zurich headquarters of auditing and consulting firm Ernst & Young AG. The complex also houses a Coop store.

Address Maagplatz 1, 8005 Zurich
Number of floors 7
Total number of workplaces approx. 1 000
Rental floor space approx. 20 900 m2
Volume approx. 109 000 m3


Architect Gigon/Guyer Architekten, Zurich
Investor / property owner Swiss Prime Site AG, Olten
Investment volume (all four buildings) CHF 380 million