Melbourne Second Storey Additions
We deliver fully managed second storey additions for growing families, from design to completion, with a guaranteed fixed price and 10-year warranty. Our additions are designed to enhance your lifestyle.
A Guaranteed Fixed Price on Your Upstairs Extension
You get a detailed HIA contract price for your second storey extension that is guaranteed not to change, giving you complete financial certainty for your residential addition.
Council Permit Management for Additions
Our team handles all council applications for residential extensions. This ensures a smooth approval process for a timely project start on your double storey addition.
10 Year Workmanship Warranty
Your upper level construction project is protected by our 10-year warranty. This is our written promise of lasting, high-quality residential additions and a key part of our work.
Free & Friendly Consultation
Get A Free No Obligation Quote
Who We Help with Second Storey Renovations in Melbourne
We specialise in helping Melbourne homeowners, designers, and builders create unique and high performance kitchen benchtops. Our value lies in delivering bespoke surfaces that other materials cannot, including concrete furniture and tables.
Needing additional bedrooms for families and living areas without the major disruption of moving.
Requiring dedicated, quiet work from home spaces to achieve a better work-life balance through a thoughtful expansion.
Wanting to maximise their block's potential and increase value by building upwards in Melbourne.
Who need more space but don't want to leave their community, schools, and friends behind, opting for strategic expansions.



Our Process for
Second Storey Additions
We have designed a clear and straightforward path to your new space. Here’s how our Melbourne builders deliver your project with ease, following a proven method for all our storey extensions.
Get a Fixed Price for Your Addition
This provides you with complete clarity from day one for your multi-level addition project and overall costs.
We Handle the Design & Paperwork
We create your 3D plans and architectural drawings for your project, and manage all building permit approvals.
We Manage the On-Site Construction
You can focus on your life, not on managing tradespeople during the upper level construction and renovation.
Your Guide to the Second Storey Addition Process
Here’s what you can expect from the residential building additions method, broken down into clear stages for your new level.
Confirming Your Home's Suitability
We check these key items, including a structural integrity assessment, during your free consultation for second storey additions.
Foundation & Structural Integrit
We assess your existing foundation and structure. Most existing structures are suitable, and our engineers later design the precise support needed for the addition.
Local Council Zoning
Our team handles the entire council submission, preparing all reports for council-approved additions to ensure a smooth approval for all projects.
Block & Access
We evaluate your block to plan for safe and efficient access for materials and our local Melbourne building team.
Design & Council Approval Stage
We manage this entire complex stage of your modern upgrade for you, ensuring a seamless design and approval.
The Design Phase
We create detailed architectural plans and 3D models so you can see your new space before construction begins on your new level.
The Building Permit Approval
We compile and manage the detailed engineering reports and all other documentation to secure your building permit efficiently for the project.
The On-Site Construction Management Stage
Our method is designed so you can live in your residence comfortably throughout the construction of your storey addition.
Daily On-Site Management
Our dedicated Project Manager is there every day, ensuring every detail is correct so you can focus on your life.
Minimising Disruption
The 'break-through' connection stage to link the new level to your existing structure is planned for the last possible moment to keep you comfortable.
See Your New Space Come to Life
You’ve seen how our method for lasting renovations works. Now, take the next step. Your free, no-obligation consultation and no-surprise fixed quote are the first steps to creating the perfect space for your family. Let’s start the conversation about your custom extension today.
See Our Second Storey Transformations
Explore our completed projects to see how our fully managed process delivers stunning second storey additions for Melbourne families, all with a fixed-price guarantee and a 10-year warranty.
Results for Storey Additions in Melbourne
Beyond the images, here are the stories of the specific problems we solve for our clients.

"Our promise is simple: deliver on time and on budget. Success isn't just a beautiful new space; it's a smooth and enjoyable experience for your family from start to finish.”
Wafa Ismael, Founder & Licensed Builder
The Johnson Family in Glen Iris
They needed more space for their kids without leaving their suburb. We completed their addition, adding a full second level with two bedrooms and a rumpus room, in 7 months. This is one of our favourite projects.
The Johnson Family in Glen Iris
They needed more space for their kids without leaving their suburb. We completed their addition, adding a full second level with two bedrooms and a rumpus room, in 7 months. This is one of our favourite projects.
“The fixed-price extension meant no surprises, and Mardo handled everything seamlessly. We could stay in our home during the entire build, which was incredible for our family.”
Jane J.
Homeowner
The Chen Family in Camberwell
They needed a dedicated office. We designed and built a private master suite and a separate, sound-insulated office as part of their Victorian renovations.
The Chen Family in Camberwell
They needed a dedicated office. We designed and built a private master suite and a separate, sound-insulated office as part of their Victorian renovations.
“The procedure was so smooth and professional. Having project manager oversight meant we never had to worry about a thing. The quality of the finish is outstanding.”
David C.
Homeowner
More Reviews from Melbourne Homeowners
Our guarantees are more than just words. Here is the proof, directly from the homeowners who have experienced our process.
Posted on Praveen YadavTrustindex verifies that the original source of the review is Google. First home is a dream for every person & I’d like to thank Mardo Builders for delivering us a beautiful family space. We could never be happier with the results and the process in time frame. My dealings with Mardo builders were much more professional. I found them very professional, considerate & respectful team of builders , who were happy to fix every nooks & corners of my first house . I’d personally thank Mr. Rafa who took an extra effort to make our new home lively. Rafa & his team had good solutions & was responsive to requests. Most importantly they kept the project within the time frame, ensured we could move into our house on time , which we really appreciate. I would heartily recommend Mardo Builders & his team to anyone thinking about to renovate a house.Posted on Ali SahandiTrustindex verifies that the original source of the review is Google. I highly recommend Mardobuildingco Building Co, his craftmanship is impeccable. Not only was he professional but also punctual and provided us with a very affordable quote and completed the job beautifully and quickly as well. I will be saving Andrew's number as my regular tradie and will be recommending his services to my family and friends! He definitely deserves his client-base.Posted on nilly tahiriTrustindex verifies that the original source of the review is Google. Outdoor renovationPosted on Sara BaTrustindex verifies that the original source of the review is Google. We highly recommend Mardo building , Wafa the builder and his team did a fantastic job to build our granny and house extension , efficient, worth every cent that we spent , will use them againShowing our latest reviews
The Brains Behind Your Second Storey Addition
Our process ensures a smooth and enjoyable experience for your family because every project is run by a dedicated Project Manager and backed by our founder’s promise to deliver your new space on time and on budget.
You’ve seen the possibilities. The next step is a simple conversation to transform your ideas into a fixed price plan, managed by Melbourne’s expert building team.
Frequently Asked Questions
These successful outcomes often lead to more specific questions about our services. Here are the answers to the most common ones we receive.
What is the cost for a second storey in Melbourne?
While the cost varies, a typical range for a second storey addition in Melbourne is $2,500 to over $4,500 per square metre. Our fixed-price quote provides an exact figure for our affordable upstairs additions, so there are no surprises with the final cost.
How long will the entire process take?
The journey for these 6-12 month projects, including design and approvals, is comprehensive. The on-site construction itself for your energy-efficient expansion is usually between 4-7 months.
Can we live in the house during the build?
Yes, in almost all cases. We establish a separate work zone and manage the ‘break-through’ at the very last stage to minimise disruption during your second-floor renovation.
What design choices do we get to make?
You make all the enjoyable interior finish selections! You’ll choose your floor plan, colours, and all finishes like tiles, flooring, and bathroom and kitchen integrations for your lifestyle-enhancing project.
How do you ensure the addition matches our existing style?
We meticulously ensure seamless integration by matching exterior materials, roof lines, and window styles, especially for period homes like weatherboard extensions, so the new level looks like it was always part of the original design.
What if my budget is under $250k?
While most cost-effective vertical builds start at $250k due to their complexity, we recommend a consultation. We can explore if a different solution, like a ground floor extension, could be a better fit for your budget and goals.
Ready to Add the Space Your Family Needs?
Your initial design consultation and detailed, fixed-price quote are completely free. You get clarity and a clear path forward with no obligation. Let’s talk about your vision and build the space you deserve with our renovation expertise.