Integrity Open, transparent & fair. Reliability Proven track record of safely delivering high-quality, value for money projects.
Multiple repeat clients.
Supporting Local Communities We leave a positive legacy in the communities we work in Riding for Disabled (Hervey Bay & Rockhampton) Collaboration We listen to your needs and work with you. 'Hands-on' Management Owner is part of the project team and works directly with you.

What We Do

SGQ delivers a wide variety of civil and building works, on either a Construct-only or Design & Construct basis, in a variety of environments ranging from dense urban through to remote regional locations.

Our Team

The success of SGQ lies in our quality civil and building construction personnel, supported by our hands-on owner management team, together with our reputation for integrity and fair dealings.

Why Choose Us

SGQ has an outstanding reputation for the competitive pricing of works, together with excellence in safely and reliably delivering projects, on or before time and within budget.

OUR SERVICES

OUR PROJECTS

OUR TEAM

Mark Goodwin Staff 003

Mark Goodwin

CEO / Managing Director

The Managing Director of SGQ, Mark is a Registered Professional Engineer of Queensland in civil engineering who has overseen and delivered an extensive array of infrastructure and building projects from his Sunshine Coast base since 2001. Such works have included road & bridgeworks of up to $400m in value, large wastewater treatment plants, airport runways and specialised effluent schemes, as well as commercial building and property development projects.

As well as fulfilling his key company leadership role, Mark continues to take active roles within projects, especially at Project Director or JV Director level for major contracts.

Furthermore, Mark has been an elected Board Member of the Civil Contractors Federation (CCF) in Queensland since 2011. The CCF is the peak industry body recognised by the Queensland Government and various agencies such as Work Cover, Construction Skills Qld and the Department of Transport and Main Roads, as well as local government authorities. Currently, Mark has been elected as President / Chairman of the Board for CCF Qld since 2022.

These achievements are only part of the full story of his impressive construction career, which has been built since his youth, and has established his reputation for the reliable, contractor-owner involved, and commercial delivery of works.

Civil construction is part of Mark’s DNA, thanks to the influence of his father, industry stalwart Bob Goodwin. Bob started his civil engineering and management career overseeing major infrastructure projects for various Queensland councils. He then strengthened his reputation in the industry when he established and developed the very successful Bellero Constructions, spending 25 years as its Managing Director.

Mark therefore grew up in the construction industry since 1986 and shared his father’s passion for it. He began working in the family business from a young age and in those formative years, Mark moved through the Bellero company ranks from the trenches, as a construction labourer, then plant operator, civil foreman and structural & civil CAD drafter, while juggling secondary school and university studies. This early hands-on experience in the industry was invaluable and has helped shape Mark’s subsequent management career.

After completing his Bachelor of Engineering, Mark joined Seymour Whyte Constructions in Brisbane, working outside the family business for the first time. He progressed quickly from Site Engineer to Project Manager, supervising a variety of construction projects throughout much of Queensland, and was then promoted to Area Manager, North Queensland.

Mark returned to Bellero Constructions in 2001 and, from his Sunshine Coast base, was instrumental in the company becoming involved in high-end engineering construction contracts with the Department of Transport and Main Roads and Queensland Rail. High pre-qualifications followed.

He became an owner and company director of Bellero Constructions before it was sold to interstate buyers in 2009. Mark then developed the idea for establishing the SGQ entity in 2010.

Mark has been a Director of Sunstate Group and now called SGQ Pty Ltd since 2010, managing the company’s larger civil infrastructure operations, especially all DTMR works. SGQ has grown quickly and has established itself as a very reputable and reliable contractor to TMR and other government and private entities.

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Paul Biggs

General Manager of Operations

Paul has 40 plus years of delivering positive results in the infrastructure industry, having held various positions for Principal/Clients and Contractor/Consultant organisations throughout Queensland and Wales (United Kingdom).  Through this experience, Paul has amassed a unique understanding of the technical engineering solutions available and construction delivery logistics required for key infrastructure works.

Paul’s hands-on management approach, developed from early Site Engineer roles through to Operations Manager has seen him accumulate skills in all aspects of the design & construction of a wide variety of infrastructure including major roads & bridges, subdivisions and water supply & sewerage.  Since joining SGQ in 2011 and up to recent times Paul has guided, overseen and ensured SGQ’s Sunshine Coast team success through results-driven leadership.

Paul adds that required edge with his wealth of knowledge in program and project management, operations/business management, working with and amongst diverse teams, leading teams through difficult times, and guiding team leaders.  With Paul’s full appreciation of integrating design intent with construction reality and a fundamental drive of sustained performance, SGQ’s clients benefit in achieving better value for money.

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Bob Goodwin

Senior Consultant

With more than four decades of experience Bob is well regarded in the Queensland construction industry and has excellent, long-term working relationships with senior engineers and administrators within government and commercial ranks. During his 25 years as managing director of Bellero Constructions, Bob Goodwin grew the company from a small, civil construction operation with a monthly turnover of about $30,000 and specialising in small subdivisions in Hervey Bay, to a well-known and highly respected statewide civil construction firm and commercial builder with an annual turnover of more than $100 million.

 Under his leadership, the company achieved R4 & B3 (Road & Bridge) Prequalification ratings with Main Roads, Qld and an allowable BSA annual turnover of approx. $250 million. Prior to Bellero Constructions, Bob was employed by Cairns City, Gold Coast and Hervey Bay City councils in various engineering management roles and was involved in major projects including significant dams and other water & sewerage infrastructure.

Jason Wells from SGQ on the Sunshine Coast

Jason Wells

Operations Manager – Sunshine Coast

Jason is a civil engineer with 31 years of construction experience and has worked on a wide variety of projects of up to $600m+, within the Roads Infrastructure, Mining, Rail, Ports & Dams sectors. This has included major urban road construction, Bruce Hwy upgrades and various other road authority works, up to $85m value. Jason has proven, exceptional skills and experience with the communication, management and co-ordination of multidisciplinary construct-only and design & construction teams, through all the different phases of the project lifecycle.

The projects have been conducted under numerous contract types including RCC/TIC-CO, D&C and Alliances with a mixture of Lump Sum & Schedule of Rates payment devices.

Having managed programs and projects within complex and politically sensitive environments, he has developed specialisation in relationship building, stakeholder management, negotiation and project direction, particularly in setting of constant change and conflicting stakeholder requirements.

Jason enjoys the challenge of working on critical and complex projects and is driven by the need to deliver the best possible project and business outcomes to achieve high level of satisfaction from his clients.

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Paul Andrew

Operations Manager – Coral Coast Queensland

Paul brings over 21 years of construction industry experience to SGQ’s senior Management team, worked across a range of infrastructure projects for both State / Local Government and Private development clients. His detailed knowledge stems from first-hand experience in various construction roles, progressing through plant operation, supervision, quality control, and project management. Paul has successfully contributed to projects across construction of bridges, roads and development infrastructure scopes. Paul also provides robust expertise to Road upgrade projects through maintaining registration as an approved Traffic Management Designer.

Paul joined SGQ in 2012 in a Contract Quality / Project Engineering role, promoting to Project Manager in 2018. Since 2019 Paul has consistently delivered in the role of Operations Manager,overseeing concurrent projects across Coral and Fraser Coasts (inclusive of State/Council Road Infrastructure upgrades and Greenfield Residential Developments). Paul is responsible for the delivery of selected projects, ensuring that they are delivered on time, within budget and consistently meeting the highest quality / compliance standards.

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Craig Hutton

Operations Manager – Fraser Coast

Craig is a Registered Professional Engineer of Queensland (RPEQ) with over 25 years of experience in the civil construction industry across both public and private sectors. He brings senior management expertise from government infrastructure delivery together with extensive project management experience in the private sector.

Throughout his career, Craig has successfully led and mentored teams on complex infrastructure projects, driving high standards of safety, quality, and performance. As SGQ’s Operations Manager for the Fraser Coast, he provides critical oversight to ensure the effective and timely delivery of projects for our clients.

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Rod Hartland

Operations Manager – Infrastructure Projects

Rod has extensive construction experience across a variety of often logistically difficult civil and other infrastructure works, together with some 9 years design engineer experience in Australia and the UK. He has worked on behalf of and as a contractor-partner with, various local & state-wide regulatory authorities and private clients, from the concept & development phases of works through to the full construction & commissioning stages.

Roderick joined SGQ in 2013 and moved into his current role in 2015, with his first assignment at that level being the complex Maryborough CBD Flood Resilience project. He has subsequently followed through with the overall management of multiple Fraser Coast Regional Council and private sector projects, taking lead responsibility for the safe, timely and cost-effective delivery of multiple simultaneous works, all in accordance with or exceeding client and regulatory requirements.

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Belinda Elder

Finance Manager

Belinda is a versatile professional with extensive experience across finance, governance, and corporate services within the civil construction industry. Over her career, she has worked collaboratively with company directors, managers, clients, and project teams to deliver outcomes spanning Health, Safety, Environment and Quality (HSEQ), Human Resources, Procurement, Asset Management, IT, and Contract Compliance.

Her role extends beyond financial oversight, supporting organisational improvement, workforce engagement, and continuous compliance with regulatory frameworks. Highly regarded for her communication and stakeholder management skills, Belinda fosters strong relationships across SGQ’s 120-plus workforce and with external clients and partners.

A qualified Rehabilitation and Return to Work Coordinator, she brings a people-focused approach to leadership—ensuring that both business and community needs are met through collaboration, accountability, and sound management.

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Callan Stephens

Pre-Contracts Manager

Callan brings over 20 years of project engineering and management experience in the civil infrastructure industry, having delivered major transport and civil projects throughout South East Queensland. His career spans both Principal and Contractor roles, providing him with a comprehensive understanding of design development, constructability, and project delivery across all phases of construction.

Throughout his career, Callan has contributed to the successful delivery of significant infrastructure projects including the $600M Bruce Highway Upgrade – Caloundra Road to Sunshine Motorway (CR2SM), the $1.5B Origin Alliance – Darra to Goodna Ipswich Motorway Upgrade, and the $90M Caloundra Road & Caloundra–Mooloolaba Road (Kawana Link) Upgrade, all for the Department of Transport and Main Roads. His technical expertise covers complex road and bridge construction, traffic management in high-speed environments, and major service relocations.

Since joining SGQ, Callan has led the successful delivery of complex road and bridge projects and now oversees SGQ’s pre-contracts and tendering activities. His extensive DTMR experience and focus on practical engineering solutions ensure that SGQ maintains competitive, compliant, and constructible outcomes for all client engagements.

CREDENTIALS

National Prequalifications system for Civil Construction Contracts

  • TMR Certificate Of Prequalification (SGQ) Level: R5, B3, F150
  • TMR Certificate of Prequalification (ASJV) Level: R5, B4, F150+

Queensland Building Construction Commission (QBCC)

  • Open Builder License 1197667

Memberships

  • Civil Contractors Federation – Member

Accreditations

  • Australian Government Building and Construction OHS Accreditation (OFSC Scheme)
  • ISO 45001:2018 Occupational Health and Safety Management Systems
  • ISO 14001:2016 Environmental Management Systems
  • ISO 9001:2016 Quality Management Systems
  • Cm3 Contractor Prequalification
  • Business Chamber QLD Eco Biz Star Partner (Energy, Water & Waste)

Industry Recognition

  • Civil Contractors Federation Industry Award Winner 2022 – Outstanding Commitment to Training and Skill Development
  • Civil Contractors Federation Excellence of Civil Construction Earth Award Winner 2023 – Project Value up to $2M (Hervey Bay RSL Mini Golf Stage 1)