our history

1970s-1980s: Building at Scale

Across New Zealand and Australia, rapid urban growth drives a construction boom. Commercial towers reshape city skylines, apartment developments increase urban density, and public infrastructure expands to support growing populations.

The industry's focus is on building quickly and efficiently.

Few are considering the long-term challenges that future owners will face as these assets age.

1991: NZ Building Act 1991

New Zealand introduces the Building Act 1991, replacing prescriptive building regulations with a performance-based framework designed to encourage innovation and new building methods.

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1994-2004: Leaky Building Crisis

A combination of regulatory change, changing construction methods, untreated timber framing and a nationwide building boom contributes to what becomes the Leaky Building Crisis. Thousands of buildings develop significant defects and weather-tightness failures.

The need for specialist remediation expertise becomes increasingly critical.

2005: ANZ Responds

New Zealand introduces the Building Act 2004, strengthening industry oversight, practitioner responsibilities and building controls following lessons from the weathertightness crisis.

Across the Tasman, Australian regulators are also placing greater emphasis on risk management, compliance and long-term building performance.

The focus is no longer solely on building new structures. Owners are increasingly concerned with protecting and extending the life of existing assets.
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2010

Brosnan is Founded

Brosnan started out in Auckland with a small team, a strong work ethic, and a belief that there was a better way to do remediation.

2011: Christchurch Quake

The Christchurch earthquakes created one of New Zealand's largest-ever building recovery efforts.

Engineers, consultants, contractors, and asset owners confront new questions about resilience, strengthening, and the long-term performance of buildings.

2013

Christchurch Branch Opens

Supporting post-quake recovery, Brosnan opens an office in Christchurch. Laveraging it's remedial capabilities and

2014: The Lacrosse Apartment Fire

The Lacrosse Apartment fire in Melbourne becomes one of Australia's most significant building-compliance incidents. The incident exposes risks associated with combustible cladding and triggers nationwide investigations into building safety and façade performance.

Overnight, remediation becomes a boardroom issue rather than simply a maintenance issue.

2019

First $100M Project

In 2019, Brosnan secured its first project valued at over $100 million, cementing its place as one of the leading remedial building companies in New Zealand.