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Lead design, general plan­ning

Turning old into new – re­fur­bish­ment of occupied homes

Insurer Helvetia Versicherungen commissioned Gruner to oversee the wholesale refurbishment of its residential property at Sissach. The 42-unit development with indoor car park was built in 1979. Preparation of the refurbishment concept was preceded by a detailed condition survey and cost appraisal by all specialist designers. Gruner then superintended the design of the necessary works and the bidding process for all construction trades. The final step involved on-site execution of the renovation works in two phases.

Apart from deadline and cost control, the resident site supervisor played a pivotal role in ensuring the successful completion of the project. Not only was it important to coordinate the various contractors, it was also crucial to provide round-the-clock support for the tenants, who remained in their homes throughout the site operations. Gruner’s General Planning team also views tasks such as these as a vital part of their remit.


Gruner Generalplanung AG
St. Jakobs-Strasse 199
4020 Basel
Contact Person
Lutz Wörner
T +41 61 317 63 37
Lutz Wörner Gruner AG Generalplanung