montat holdings limited

Deemed a total constructive loss, the building owner had the choice of demolition or repair. Repair work has strengthened the existing building to 100% of NBS for its new tenant.


Montat Holdings Limited


October 2010 - August 2013

total value


project description

The building at 55 Montreal Street, Christchurch has undergone significant repair and strengthening works following damage from the 2011 Canterbury earthquakes. Following occupancy and evaluation reports, strengthening works were designed to bring the building to approximately 100% of NBS. Before demolishing the existing slab, the superstructure was reinforced with additional steel columns and roof bracing. The concrete floor was removed in stages so that building integrity was maintained. Foundation beams underpinned with 13.2 metre piles were laid, and the concrete slab re-poured in a staged process.

project detail

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our role

  • Project management of earthquake repair and strengthening process
  • Final fit-out management
  • Insurance claim management

particular challenges

  • Coordinating demolition of the floor slab and installation of screw piles and foundation beams, minimizing down time and maintaining building integrity during the process.
  • Removal of liquefaction
  • Managing the tenant fit-out in conjunction with strengthening work
  • Administering the insurance settlement process


  • Met cost expectations
  • Work completed on schedule for government tenant
Retro-fitted cross bracing in the roof
Tilt slab panels strengthened by new steel columns
New foundation beams tied to piles
Reinstated concrete floor poured in 2 stages