“This is good news! Thanks for your help in having our property assessed as being more that 33% NBS. My fellow unit owners and myself appreciate your efforts”. – C. Anderson

Earthquake specialities


Following the devastating earthquakes both in Christchurch and overseas in recent times, earthquake preparedness is in the forefront of a lot of people’s minds.

We have a large portfolio of building both in Wellington and around the country now that we have assessed and/or strengthened.

We work for clients that have national building portfolios and who have a policy in place for the assessment and strengthening in a set time frame. Through our expert contacts we can provide investigation and costing services to make sure the complete picture is presented to our clients.

Silvester Clark is also working hard with plant and other non-structural element providers to provide restraint in seismic events.

Colmar Brunton Building

The client of this iconic eight storey, 1920’s concrete building on the corner of Taranaki and Wakefield Streets had been notified that this was a potentially earthquake prone building.

By completing a sophisticated 3D push over analysis Silvester Clark were able to show that this building was not earthquake prone and provided a report detailing the assessment method and findings to Wellington City Council. The Colmar Brunton Building has been removed from the Wellington City Earthquake Prone Building Register.

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