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Bringing ambitious architectural ideas to life. GSTRUCT is a specialist architectural builder driven by an innate respect for detail, complexity and design integrity. We’re drawn to ideas that haven’t been built before, not for the sake of novelty, but because breaking new ground is where the most meaningful work happens.

Founded by Glenn Longstaff, the business brings over 30 years of hands on experience to projects where nothing is standard and every decision carries weight. From complex residential builds to highly detailed commercial work, we work with intention, calm, methodical and deeply collaborative.

Architects trust us to honour their vision. Clients trust us to bring structure to ambition, translating bold ideas into built form with care, clarity and control. The unfamiliar doesn’t intimidate us. It invites us in.

The right result starts with the right team. If you’re ready to discuss your project, we’re ready to listen. 

P.O. Box 572
Mount Eliza VIC 3930

0412 504 225
glenn@gstruct.com.au

Our process

Glenn will meet with you and any vested parties, for example, your Architect, on site or at your home or office. We’ll discuss the project and look over the plans to determine your requirements and get a clear idea of what you want from your new home. There is no fee for this consultation.

With Glenn’s vast experience, he knows what questions to ask and what to look for on the plans in order to deliver an accurate quote. We’ll provide you with a detailed cost estimate based on the approved preliminary design and specifications.

When the estimate has been approved, we’ll co-sign the building contract and commence preparation of all documentation required, e.g. for development.

The exciting bit! GSTRUCT GROUP will commence construction and work with you to create your dream home.

We will give you 2 – 3 weeks’ notice for a full inspection prior to handover. And we make sure the house is handed over to you in perfect condition.

The team

Specialist architectural builder driven by an innate respect for detail, complexity and design integrity. We’re drawn to ideas that haven’t been built before, not for the sake of novelty, but because breaking new ground is where the most meaningful work happens.

Glenn Longstaff
Director l Construction Manager

+

Cindy Muse
Project Manager & Operations Coordinator

Ray McKeown
Site Manager

Barry Gesthuizen
Site Manager

Finn Ryan
Contract Administrator

The team

Glenn Longstaff
Director l Construction Manager

+

Cindy Muse
Project Manager & Operations Coordinator

Ray McKeown
Site Manager

Barry Gesthuizen
Site Manager

Finn Ryan
Contract Administrator

Bringing ambitious
architectural ideas to life.

© Gstruct Group 2025 | Design by LBD STUDIOS

Glen Longstaff
Director

Glenn Longstaff
Director

With almost 30 years’ experience in the building industry, Glenn has learnt the building trade from the ground up. He rose through the ranks from Apprentice Carpenter to become Construction Manager on multiple high-end projects, here in Australia and in the UK.

Prior to establishing GSTRUCT GROUP in 2013, Glenn was at VCON for 15 years. VCON is renowned for delivering a remarkable portfolio of architectural projects throughout Melbourne and Glenn was privileged to oversee some hugely successful projects, such as the award-winning Jackalope Hotel on the Mornington Peninsula.

Glenn has enjoyed collaborating with highly esteemed architects over the years. The strength of these relationships is a testament to Glenn’s ability to gain the high level of trust required with all Architects and Clients for bespoke high-end builds.

Glenn’s in-depth understanding of all facets of the building process has helped shape the foundations for GSTRUCT GROUP and it’s this in-depth knowledge that ensures each build meets the highest of quality standards.

As you’ll see from testimonials, Glenn approaches every person and every project with integrity and a positive attitude