About Hadley Consultants

Hadley Consultants Building on Robins Road

About Us

Hadley Consultants Ltd was established in Queenstown by James Hadley in 2000 to provide local clients with cost effective, practical and design focussed solutions.

Since establishment, the company has grown to become a boutique firm specialising in solving difficult problems. This reputation has attracted staff with a broad range of technical skills and interests who are committed to the lower South Island.

We undertake large scale utilities projects to minor house renovations and most things in between. While we are Queenstown based, we also deliver projects in Southland, Central Otago, Fiordland, Dunedin, Marlborough and the Mackenzie Basin.

The professional reputation of the firm has continued to grow and numerous commissions from large corporates and Territorial Authorities have resulted.

The company culture is focussed on excellent engineering solutions tailored to specific client needs. As staff have joined the company, they have identified with this culture and are encouraged to question and think independently to achieve different solutions. As a result, staff happily work extremely hard when required for clients, but they are also encouraged to appreciate the need to enjoy where they live.

Our People

Irwin Imhoff
Senior Structural Engineer

Irwin is a Structural Engineer with 10 years of work experience. Irwin has experience in commercial and residential design projects using steel, concrete,  masonry and timber, earthquake strengthening projects and crane verification. Irwin has a good understanding of NZ design codes for structural engineering as well as a range of euro-codes. He has experience with foundation design including rib-raft foundation design and screw piles. He also has experience with marine structures.

Professional Qualifications

  • HTI Concrete, Amsterdam, Netherlands, 2014 - 2015
  • HTI Steel, Amsterdam, Netherlands, 2010 - 2012
  • Bachelor of Structural Engineering, Utrecht, Netherlands, 2008 - 2009
  • Bachelor of Building Environment (Civil), 2002 - 2005
  • Member, Institution of Professional Engineers, New Zealand (GIPENZ) 2013

Professional Experience

2016 - current Hadley Consultants Ltd Senior Structural Engineer
2014 - 2015 Technish Buro de Heer, The Netherlands Structural Engineer
2013 - 2014 Design Engineering, Timaru Structural Engineer
2007 - 2012 Technish Buro de Heer, The Netherlands Structrual Engineer
2006 - 2007 Netherlands Airport Consultancies (NACO), The Netherlands Draftsman

Areas of Specialist Expertise

  • Structural Design in structural steel and reinforced concrete
  • Construction Supervision

Major Project Experience

  • Cardrona Parking Building, Cardrona Alpine Resort, Structural Design
  • S76 Industrial Building, Frankton
  • Blackstone Apartments, Queenstown
  • Ponte Palazzo, Den Bosch, The Netherlands, Connection Design and shopdrawing
  • Caisson Quay, Fuijan, China, Pre-Design
  • Hal 6 Huisman, Schiedam, The Netherlands, Site Inspection and Supervision
  • 196 River Road, Christchurch, Concrete Foundation
  • Waitaki Dam Cranes, Kurow, Design Verification