About GMAC Built:
Melbourne Builder Specialising in Home Extensions, Renovations & Luxury Builds
Quality Builds.
An Enjoyable Experience.
With over 20 years of experience in high-end residential construction, GMAC Built’s truly collaborative approach delivers quality homes and contemporary building styles across Melbourne.
As a premier builder in Melbourne, Greg McCaskill is dedicated to working closely with clients and their design teams to deliver beautifully crafted homes. Every GMAC Built project is defined by technical precision and Greg’s uncompromising attention to detail.
The GMAC Built Difference
Built on Trust. Led by experience.
At GMAC Built, your project is led by Greg McCaskill, a certified carpenter and registered domestic builder in Melbourne with over 20 years’ experience in custom builds, extensions, and renovations. From working as a heritage home builder to managing complex second-storey extension projects, Greg brings a proven track record of structural excellence to every build.
Greg’s deep industry mastery ensures every phase of your project is executed well. By working directly with the builder throughout the journey, you gain a level of transparency and consistency that larger firms simply cannot match.
His clients say Greg is easy to deal with, flexible, and has a practical approach to building. Greg loves nothing more than a complex build—such as integrating a modern extension on an old house in Australia—and works closely with homeowners and architects to ensure that what’s on the blueprint is exactly what gets delivered on-site, without compromise.
Our Approach to Building:
From the very beginning, we focus on delivering the following:
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Greg works closely with your architect or designer to ensure the vision is well-executed. Once the plans are locked in, Greg focuses on translating these into a high-quality build.
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We intentionally limit the number of projects we take on. This ensures you aren’t just another number; you have Greg’s full focus and a direct line of communication throughout the build.
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Greg is on-site regularly, personally managing your project and trades. With the builder on-site, nothing gets lost in translation, and decisions are made quickly and accurately.
With our can-do approach, strong work ethic, and dedication to delivering every project on time, we take pride in making the building journey as smooth as possible for our clients. So, if what we do is what you are looking for, we’d love to work with you to deliver a build of the highest quality.
What We Do Best
GMAC Built works across metro Melbourne to deliver:
Custom homes
Tailored to suit your lifestyle and architectural brief.
Home extensions
Expertly executed additions to increase space, value, and functionality.
Luxury renovations
High-end transformations for both heritage and contemporary homes.
Portfolio Highlight:
Our completed projects showcase the high-end craftsmanship, attention to detail, and innovative design solutions we bring to every home. Whether it’s a home extension, renovation or custom build, GMAC Built delivers results you’ll love.
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Warley Road - Malvern East
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Patterson Street - Middle Park
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Lawson Parade - Highett
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Wheeler Street - Pascoe Vale
Build a Home That Reflects Your Lifestyle Today
Work Directly with an Experienced Melbourne Builder
When you choose GMAC Built, you work directly with Greg—not a site supervisor or multiple project managers. You benefit from a single point of contact and the peace of mind that comes from having the registered builder himself overseeing every nail and beam.
