Everything You need from one local builder –
Custom Homes, Renovations & Extensions
Just Building Group are a family-owned builder based on the Mornington Peninsula, delivering quality craftsmanship across custom home builds, full home renovations and home extensions. Whether you’re starting from scratch or transforming an existing property, our local team brings 30 years of experience to every project – on time, on budget, and built to last.
Custom Homes
Build your dream home from the ground up with a Mornington Peninsula builder who knows the local landscape. We manage every stage – from design and planning permits through to final handover – creating architecturally designed homes tailored to your block, your lifestyle and your budget.
Home Extensions
Need more space without moving? Our home extension specialists design and build seamless additions that feel like they were always part of your home. Dual living, extra bedrooms, open-plan living areas – we make it happen across the Mornington Peninsula.
Home Renovations
Transform your existing home with a renovation team that understands Peninsula properties inside out. From full home makeovers to kitchen and bathroom renovations, we breathe new life into your space while maintaining the character that makes your home unique.
mornington peninsula locals
Proudly Local – Mornington Peninsula Builders Who Know Your Area
Just Building Group are based on the Mornington Peninsula – this is where we live, where our kids go to school, and where we’ve been building homes for over 30 years. We understand Peninsula blocks, local council requirements, coastal conditions and the unique character of homes across the region.
From Mornington and Mount Eliza through to Rosebud, Rye and Sorrento, we work with Peninsula homeowners every day and our reputation is built entirely on word of mouth from neighbours who trust us.
Meet Our Team
Ready to Start your build on the mornington peninsula?
Whether you’re planning a custom home, renovation or extension – we’re here to answer your questions and make the process simple from day one.
One Builder – one point of contact
We handle everything
so you don’t have to
Building or renovating your home is one of the biggest decisions you’ll ever make. At Just Building Group, we make it easy.
As a family-owned Mornington Peninsula builder with over 30 years of experience, we manage every single step for you – from initial design concepts and council approvals, right through to the final coat of paint. No juggling multiple trades. No chasing permits. No stress.
Whether you’re building your first home and don’t know where to start, or you’re an experienced homeowner ready to transform your property – we’ve done it all before, and we’ll walk alongside you every step of the way.
One builder. One point of contact. Zero headaches.
Here’s what that looks like in practice
Full Project Management
Design, permits, approvals and construction
One Point of Contact
Just Building Group manages your build from day one to handover
Built for Every Builder
First home or fifth, we make the process simple
Building portfolio
Recent Home builds Across the Mornington Peninsula
A selection of home build, home renovations and extensions by Just Building Group across the Mornington Peninsula.
1960s Timber Cottage Renovation
Full Home Renovation in Mt Martha
Airbnb Renovation – Mornington Peninsula
what our customers are saying
Trusted by Homeowners Across the Mornington Peninsula
where we build
Areas We Service Across the Mornington Peninsula
Just Building Group are based on the Mornington Peninsula and build across the entire region. From Frankston and Mount Eliza in the north, down through Mornington, Rosebud and Rye, to Sorrento and Portsea at the tip – if you’re on the Peninsula, we build there.
Build Your Dream home on the
Mornington Peninsula
Whether you’re planning a custom home, renovation or extension – the first step is a free one hour site consultation with us.
No obligation, no pressure, just honest advice from a local builder who knows the Peninsula.
got questions?
Frequently Asked Questions About
Building on the Mornington Peninsula
We know building or renovating is a big decision. Here are the questions we get asked most often – if yours isn’t here, just give us a call.
Custom home builds on the Mornington Peninsula typically start from around $350,000 for a modest design, through to $1M+ for larger architecturally designed homes. The best way to get an accurate figure is a free site consultation – every block and brief is different.
Yes – completely. We manage the entire permit and approval process with Mornington Peninsula Shire Council on your behalf. This includes planning permits, building permits and any BAL (Bushfire Attack Level) assessments required for your site. You don’t need to deal with council at all.
Most home extensions take between 8 and 16 weeks depending on scope and complexity. Simple single-room additions can be completed faster, while double storey extensions or those requiring significant structural work take longer. We provide a detailed timeline before work begins so you always know exactly where your build is at.
Absolutely – and this is where most of our clients start. We work with you from the very beginning, helping connect you with the right designers and architects for your project. Whether you have a rough idea or a fully developed vision, we’ll help shape it into something buildable, practical and within your budget.
Yes. Just Building Group holds a valid Victorian registered builder licence. We are fully insured and all our trades are qualified, licensed and insured. You can build with complete confidence knowing your home is in the hands of a legitimate, accountable building company with over 30 years of experience on the Mornington Peninsula.