Custom Homes, Extensions & Renovations in Melbourne
20 Years of Crafting Melbourne’s Signature Homes.
Quality Custom Homes. Exceptional Client Service.
“Greg made what can be a stressful experience into a smooth one. ”
As certified boutique residential builders, we partner with architects and clients across metro Melbourne to deliver high-end custom renovations, extensions and new builds.
At GMAC Built, we are experts in providing high-quality custom homes, home extensions, and home renovations in Melbourne, Victoria. Whether you are looking for a home extension in Melbourne, a home extension and renovation, or a custom-built home, we have over 20 years of experience in providing top-quality residential projects.
Melbourne Home Extensions & Renovations Built Around You
Your trusted service provider in Melbourne’s Inner South East (Malvern, Malvern East, Glen Iris ) and Middle South East (Camberwell, Bentleigh)
For those who own a heritage-rich suburb, we provide expert service in luxury home extensions with high-end builders of period homes
Let’s build your dream home together.
Home Extensions
Home Renovations
Custom Home Builds
Heritage Home Extensions
Architectural Second-Floor Extensions
Double-Storey Extensions
Looking for a Melbourne builder experienced in heritage home extensions? We delivers elegant, high-quality results for luxury homes.
For growing families, we specialise in contemporary home extensions and renovations to enhance their lifestyle:
Open-plan living house extensions
Functional home renovation
Floor planning to suit families
Indoor-outdoor living home renovations
As professional renovation builders in Melbourne, we assist you in transforming your home without the hassle of relocating.
A Boutique Building Experience
Why Choose GMAC Built?
We are a boutique home extension company that values quality over quantity.
No matter how big or small the project, from a home renovation to a luxury home construction, we deliver quality in every project we take on.
Credentials
Trade certified as a carpenter
Member of Master Builders Victoria
Victorian Building Authority certified
Registered domestic builder (unlimited)
Over 20 years’ experience
Built and managed projects exceeding $1 m
Meet Your Builder – Greg McCaskill
Working with GMAC Built means gaining unparalleled access to your builder, with Greg regularly onsite to ensure every detail is executed to the highest standard. You can expect honest, transparent communication at every stage, along with a collaborative approach that works seamlessly with your architect or designer.
GMAC Built offers the flexibility needed to manage complex build projects, while maintaining a strong commitment to reliability—consistently meeting, and often exceeding, project deadlines.
With over 20 years of experience, Greg leads every project with a hands-on approach. Known for being approachable, detail-oriented and solutions-focused, he ensures every build meets the highest standards.
You’ll work directly with Greg throughout your project—so nothing gets lost in translation.
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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
A Proven Process for Stress-Free Building
Discuss your ideas and goals
Initial Chat
We develop a custom proposal and walk through it with you to align on every detail.
Collaborate Openly
We manage all contracts and permits for official approval while maintaining transparency throughout the build phase with regular site meetings and progress updates.
Deliver with Confidence
Handover
Move into your finished home with confidence
Ready to Start Your Home Extension or Custom Build?
Whether you're planning a home extension Melbourne, searching for extension builders Melbourne, or looking for luxury home builders in Melbourne, GMAC Built is ready to help.