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From Ugly Duckling to Swan. John Storey Centre for Building Performance Research School of Architecture Victoria University of Wellington New Zealand. Paper Outline. WHAT Transformation WHY Many poor quality office towers litter the world’s cities
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From Ugly Duckling to Swan John Storey Centre for Building Performance Research School of Architecture Victoria University of Wellington New Zealand
Paper Outline WHAT Transformation WHY Many poor quality office towers litter the world’s cities What do we do with them? Demolish or Refurbish SCOPE Focus on Construction Material Stewardship issues CONCLUSIONS Lessons learnt and their applicability nationally and internationally
Background 60-80s boom time office sector 87 crash affected NZ badly 15 years cosmetic refurbishment 2002 started building new again
Background 2006NZ Green Building Council formed 2007Office Building Assessment Tool 2008 NZ Government only rent 5 Star NZGBC rated green buildings in Central Business Districts 2009 economic slump no more new buildings for at least 4 years
21 Queen Street THE UGLY DUCKLING True child of the 70s Decline and degradation Site views and location CHOICE Demolish and rebuild OR Retain and refurbishment Refurbishment best option 5 Star Outcome Fraction Time and Cost Photo courtesy of Peddle Thorp Architects
Structure and Structural Core Retention Photo courtesy of Peddle Thorp Architects 21 Queen Street
21 Queen Street Bare Bones Removal of precast concrete façade and ribbon windows Stripping out interior Photo courtesy of Peddle Thorp Architects
4 extra floors added without altering existing structure Photo courtesy of Peddle Thorp Architects 21 Queen Street
Re-cladding with full height, high performance double glazing system Photo courtesy of Peddle Thorp Architects 21 Queen Street
21 Queen Street New Façade Photo courtesy of Peddle Thorp Architects
THE SWAN TRIPLE BOTTOM LINE FINANCIAL SOCIAL ENVIRONMENTAL SUSTAINABILITY Photo courtesy of Peddle Thorp Architects Photo courtesy of Peddle Thorp Architects 21 Queen Street
Conclusions • UNIVERSAL TYPOLOGY • SPECIAL CIRCUMSTANCES • CMS • APPLICABILITY • GREEN STAR AGENDAS • VIABLE OPTION • BEST OPTION Photos courtesy of Peddle Thorp Architects