Our Leadership Team


Gary Uys

Helen Clark

Helen Clark

Director | B.Build (Cons Econ) AAIQS, CQS



Gary was 8 years old when he begged his Mother to let him go to work at her Quantity Surveying company during school holidays. "Computers weren't really a thing back then, so I would add up numbers on a calculator and the staff kept me busy by getting me to do simple measures". And so began the fascination with numbers and quantities that lead him to a career in quantity surveying.

He still remembers today the best piece of advice he received came from a careers fair he attended in High School.  A representative from the Australian Institute of Quantity Surveyors told him that if he chose a career as a QS he would be able to travel the world and have an extremely flexible and rewarding career. That advice turned out to be gold. 

His career has taken him interstate and overseas, just as the AIQS guy had predicted. He has worked in cost planning and construction cost management for nearly 30 years as a cost planner, estimator and quantity surveyor.

He journey has seen him spend a long and rewarding time with tier-one companies Lendlease and Rider Levett Bucknall. He has worked on a multitude of project types from $50,000 house renovations to $3 Billion urban renewal projects.

Through his extensive experience he is considered an expert in forensic quantity surveying, cost planning, design cost efficiency and specialises in assisting stakeholders resolve disputes, providing advice on construction cost at all design levels, pre-design and sustainability cost strategies, value management, cost escalation and market risk advice.

When he’s not giving expert cost advice to his clients, you may find him speaking at an industry event. Most recently he spoke at the Sydney Build Expo presenting a master-class on how design efficiency affects costs. 

Gary is also involved in many associations including the Australian Institute of Quantity Surveyors (AIQS), Property Council of Australia (PCA), Western Sydney Business Connection (WSBC) and Sydney Hills Business Chamber.

Outside of work, Gary enjoys keeping fit, travel, music and is a long-suffering member and supporter of the Parramatta Eels (NRL) as well as Greater Western Sydney Giants (AFL).

And does he still have the fascination with quantities? Absolutely. Even with all the advances in technology, a good old calculator and scale ruler is never far from his reach. 


Gary can be contacted at (02) 9629 3495 or gary@costplanpros.com


Certified Quantity Surveyor (CQS)

Associate - Australian Institute of Quantity Surveyors (AIQS)

NSW Chapter Councillor - AIQS

APC Assessor - AIQS

Bachelor of Building (Construction Economics)I


Helen Clark

Helen Clark

Helen Clark

Business Manager


Secretarial Science, General Certificate (Townsville TAFE)

Administration & Business (Modern Business College of Australia)

Helen is the Business Manager for CPP and has over 20 years experience working in large, medium and small business as an Marketing Co-ordinator, Executive Assistant, Personal Assistant and Office Manager. 

She has worked for companies such as Lion, Samsung, GlaxoSmithKline, Ecolab, Caroma-Dorf and Amstar Homes and has experience in various industries such as technology, hospitality, construction, medical, manufacturing and property development.

She is active in industry associations and a member of the Administrative Consultants Association.

When she is not managing the business, Helen enjoys volunteering, health & fitness and supporting her beloved Hawthorn Hawks AFL side.