• Australia : +61 7 3299 1233
  • United Kingdom : +44 (0) 1233 333 532
  • Papua New Guinea : +675 7429 2124

Regulated by RICS

Meet The Team


The opportunities within the construction sector throughout the world are becoming endless. As we formally tie our four offices in Australia, Papua New Guinea and the United Kingdom under COSTPLAN GROUP, it is very exciting to be involved with the youth of each office and expand the company to a wider audience in the coming years. It is a testament to the continual service our staff provide to our clients which is creating this future growth.

I have been fortunate enough to work on various project scales presenting their own challenges throughout the world from a hotel in Birmingham, UK to an aquarium in Majorca, a new town in Libya, a hotel in Lijiang just to name a few. The level of technology and aesthetic design requirements in modern society will make the future of construction very exciting and will hopefully increase the attraction for the future leaders of today to start careers in construction management.

I am delighted to be supported by a group of young, like-minded hard working staff members who are prepared to go the extra mile to provide first class, professional services to our clients.


David Tilby, CEO


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David TilbyGroup CEO
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Rudi PiebengaDirector (AUS & PNG)
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Aaron TomsettDirector (UK)
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James MitchellDirector (UK)
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Matthew LeeDirector (AUS)
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Matt Valentine Planning Director
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Sarah NormanOffice Manager
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Blaze XuSenior Quantity Surveyor
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Michael ButcherSenior Quantity Surveyor
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Ross MorpheyQuantity Surveyor
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Liam HanaganQuantity Surveyor
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Rebecca HolwellHR and Office Administrator
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James ElvyTrainee Quantity Surveyor
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Adam EllerkerTrainee Quantity Surveyor
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Stewart BassPlanner
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Michelle MulloSenior Quantity Surveyor
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Rachel YanCadet Quantity Surveyor
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Lucio LuCadet Quantity Surveyor
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Fitler KaulaQuantity Surveyor

I was extremely pleased with the level of service that I received from Costplan Services. Their professional, but personable approach helped me to resolve a potentially difficult situation. I would have no hesitation in recommending them.

Kay Walsh

QLD Residential Project

We really enjoyed working with Matthew Lee, and hugely appreciated the speedy, professional and efficient way the reports were completed & sent onto the bank. Thank you Matt!

Kerry B

Pacific Architects (PNG) Limited

Since taking the position of Managing Director of PAC Architects in 1999, PAC has had a continuous highly professional and mutually beneficial relationship with CPSQS. 
Whenever CPSQS prepared a Bill of Quantities as part of a Project, PAC always appreciated the additional quality check of the Final Drawings and Specification by CPSQS.
We find that CPSQS are generally very accurate with Cost Estimating, no doubt as a result of their intimate knowledge of the Papua New Guinea Building Industry. 
Although a business association, I have thoroughly enjoyed the congenial approach and unflinching willingness to help. I count the current CPSQS Team also as good friends.

Gregory James Runnegar, Managing Director

JPD Architecture UK Ltd

Since our first project with Costplan Services albeit small, gave us a good indication of what Costplan Services could bring to the table, the service we received impressed us and our clients. It was far more robust and professional than we experienced with our estimating surveyors and more user friendly than larger Quantity Surveying practice that we would normally work with.

Our clients have given us feedback and they find the level of cost control and advice very professional and has given them confidence in moving forward on their construction projects.

John Harmer, Director