Refurbishment «Haus zum Kiel», Zürich

2023

The manor house «Haus zum Kiel» is located on Hirschengraben in Zurich and was built between the medieval city wall and the baroque redoubt. The listed building had to be refurbished.

Facts and images
Construction Data
Involved
Wine cellar after renovation; Image: Roger Frei
Wine cellar after renovation; Image: Roger Frei
Floor slab before retrofitting
Floor slab before retrofitting
Renovation measures in the wine cellar
Renovation measures in the wine cellar
Picture: Roger Frei
Picture: Roger Frei
Picture: Roger Frei
Picture: Roger Frei

The project
The aim of the overall renovation of the building was to create contemporary residential and commercial spaces, as well as an event room in the basement. In addition to the structural upgrades, this required adjustments to the escape routes. In addition, the annexes and outbuildings could also be converted into apartments. The existing wine cellar was converted for the event room and fitted with a new escape staircase between the buildings.


The construction method
The building with solid quarry stone walls and wooden beams showed various signs of damage to the building structure and load-bearing structure (cracks, fractures, rot) due to conversion and subsidence. In the basement in particular, the main load-bearing axis had to be strengthened. The existing column and beam system was completely replaced for this purpose. Fire protection upgrades were required in the storey ceilings.

The challenge
The relocations led to severe overloading of junctions. For this reason, the existing joist in the basement had to be replaced with a new 400 x 600 mm ash beam. In order to install these beams, a former coal chute had to be opened up and the approx. 10 m long beams installed.

Construction costs

- Construction loan approx. CHF 13 million


Services of Timbatec

- SIA Phase 31 preliminary project

- Cost estimate

- Statics and construction

- SIA Phase 32 Construction project

- SIA Phase 41 Tendering and comparison of offers

- SIA Phase 51 Execution project

- SIA Phase 52 Execution

- SIA Phase 53 Commissioning

- Specialist planning Fire protection

- Fire protection Quality assurance QSS2

- SIA Phase 11 Condition analysis

- SIA Phase 21 Structural analysis

Client
City of Zurich
8021 Zurich

Architect
Edelmann Krell
8045 Zurich

Timber construction engineer
Timbatec Holzbauingenieure (Schweiz) AG Zurich
8005 Zurich


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