People
Directors
David Guille, FCA

Executive Chairman
David is a Chartered Accountant with experience in both commercial and private sectors. David has a specialist ability to set the strategic direction, identify opportunities for the organisation, and implement the financial and human resources needed for the operational structure at Building Solutions.
David has developed a highly focused and specialised business model for the company. This supporting framework provides the company its foundation for growth. Click here to download the Institute of Chartered Accountants feature article on David, titled Turning Visions into Reality.
Qualification
Bachelor of Business
A Fellow Member of the Institute of Chartered Accountants in Australia (FCA)
Affiliations
Member of the Institute of Chartered Accountants in Australia
Member Master Builders Association
Marcus Kotsoglo, Registered Builder

Managing Director
Marcus is a registered builder who has had extensive experience in the building industry centred on Perth including success in managing numerous commercial and residential projects. Marcus’ foundation within the Industry has seen him work in local government, work as a Development Solutions Manager for a successful residential builder and as a Construction Manager for a large volume construction company. This broad range of industry experience has equipped Marcus with an understanding of every aspect of the building progress.
During his 20-year career he has focused on acquiring a thorough working knowledge of the building industry, development and approval process, with an extensive collection of contacts in all facets of the industry.
Qualification
Associate Diploma Applied Science Building
Affiliation
Builders Registration Board - Registered Builder
Member Master Builders Association
Administration Team
- Josie Chong CA
Financial Controller
- Lyn Tomlinson CA
Finance Manager
- Chris Cull
Contracts & Estimation Manager
- Marisa Delafuente
Contracts Administrator
- Megan Chatley
Contract & Admin Support Officer
- Michelle Fairchild
Accounts Payable & Admin Officer
- Jamie Hendry
Contracts Administrator
Construction Team
- Dimi Loumakis
Project Manager
- Rob Daniel
Project Manager
- Nic Kotsoglo
Maintenance Manager
- Kyle Lowrie
Site Supervisor
- Len Gregory
Safety Officer
- Frank Cortizo
Tradesman
- Scott Watkins
Site Supervisor
- Franky Cortizo
Tradesman
- Nathan Das-Gupta
Apprentice
- Luke Ferguson
General Hand and Labouring
- Steven Avramovski
General Hand and Labouring
- Andrew Craker
General Hand and Labouring