Contemporary knockdown-rebuild home with brick facade, upper cladding and stepped front entry

Knockdown-rebuilds

Melbourne Knockdown-Rebuild Experts

New townhouse development with twin facades and shared driveway at dusk

Let Us Manage Your Knockdown-Rebuild Project

A knockdown-rebuild process requires full collaboration between the client, architect/designer, builder and various consultants and specialists. Each of these experts excels in their respective fields, but it is the builder who understands the project’s overall budget and vision.

With decades of experience and expertise, and as an award-winning knockdown-rebuild specialists, we assume responsibility of, manage and guide you through the entire knockdown- rebuild process for you.

Completed townhouse development with brick facade, balconies and landscaped frontage

We Guide You Through Every Step of Your Knockdown-Rebuild Journey

IDEA Constructions is completely immersed and committed to your knockdown-rebuild project, ready to support you at any stage of your journey.

When it comes to your preliminary knockdown-rebuild project requirements, we are committed to delivering the following services:

  • An accurate cost estimate fully tailored to your project.
  • Handling all preliminary tasks such as obtaining permits and approvals.
  • Providing a final, fixed-price quote and contract with a comprehensive Bill of Quantities.
  • Managing the demolition of your current property and the construction of your new home.
  • Exceeding your expectations.

Our Knockdown-Rebuild Portfolio

Why We’re Melbourne’s Trusted Knockdown-Rebuild Experts

We Listen to Your Ideas, Goals and Dreams

We start by listening to your ideas so as to obtain a comprehensive understanding of your goals and your dreams for your knockdown-rebuild project. We ask you all the questions, and we invite the same from you.

We Explore Every Opportunity and Outcome

IDEA Constructions listen to your ideas and then we explore all possible opportunities and outcomes for your knockdown-rebuild project – and then we deliver the best outcome for our clients.

We Manage the Entire Process from End to End

We take care of town planning, obtaining working drawings, engineering designs, civil designs and everything else from A to Z of your knockdown-rebuild project.

We Deliver Efficient and Effective Solutions

We collaborate with all consultants involved on your behalf so as to consider and discuss various options in order to come up with the most cost-effective and efficient technical solutions for your knockdown-rebuild project.

Our Expertise Enables Us to Mitigate Surprises

With all the many factors that can adversely affect a knockdown-rebuild project, it is our experience and expertise that enables us to mitigate surprises before, while, and after they happen.

We Are Award-Winning Melbourne Builders

IDEA Constructions is your ideal partner in your knockdown-rebuild project. We’ve been recognised as one of Melbourne’s best builders, having won HIA awards in 2020 and 2021 and having being proud finalists in 2022.

Our Knock-Down Rebuild Success Stories

This is the first home we’ve built together. Robert was amazing, he checked the plans and gave us ideas and recommendations on where we could save some money. Robert answered our many questions and understood what was important to us. I highly recommend Robert and his team to build your home.

Carla and John, Rowville

Exterior of four reverse-living townhouses with shared driveway in Kilsyth
It has been an absolute pleasure working together with IDEA Constructions on this development. We can truly say it's been the easiest and smoothest build so far to date. It's incredible! The workmanship and quality of finishes has far surpassed our expectations. We would have no hesitations at all in recommending IDEA Constructions to any prospective clients.

Marc and Nicole, Kilsyth

Twilight exterior of eight-unit townhouse development in Donvale
This was my second project with IDEA Constructions and I know it’s not the last. They are super organised and their supervisors know what they are doing. Communication between them all is really great. There wasn’t any construction downtime and I was really happy with the quality of the whole project.

Lucy, Donvale

Driveway view of contemporary Bulleen townhouses with balcony access
You should definitely give IDEA Constructions a go with your construction project. We experienced IDEA Constructions as a 'one-stop-shop' to construction. Whatever the issues, the answer was always 'no problems, we'll sort it out'. This took lots of pressure away from me, especially when it came to the building permits and dealing with the council. I would highly recommend them.

Roy, Croydon

Medical centre frontage and accessible parking in Truganina
Rob did construction and fit-outs of several medical centres for us. He came in highly recommended by the building surveyor and has lived up to that expectation. His presentation, response time and customer service are second to none. Jobs were completed timely, which was important for my clients.

Arron A, Director

We have worked on many projects with Idea Constructions. Robert has a great understanding of constructability, affordability, and high-end quality. He and his team have great communication and people skills, and very innovative ideas. They approach all challenges in a positive manner and always work with all parties to get the best outcome for all.

Director, ENG Consultants

Frequently Asked Questions About Knockdown-Rebuilds

What is a knockdown-rebuild?

A knockdown-rebuild replaces an existing home or structure with a new home or townhouse development on the same site. It involves demolition, site preparation and new construction, with the design and approvals assessed for your property.

When is a knockdown-rebuild a good option?

A knockdown-rebuild is an ideal alternative when you love your location but you’ve outgrown your existing home.

  • A knockdown-rebuild is the solution when renovating is not a viable solution.
  • Many families don’t want to uproot themselves, moving their children to new schools, giving up their favourite local haunts, losing connection with their local friends and community – and finding new ways to get to work.
  • For those who don’t want to uproot themselves, a knockdown-rebuild is an ideal solution as opposed to moving or embarking on a major renovation.
What else makes a knockdown-rebuild desirable?

There are many other factors that make a knockdown-rebuild a desirable option.

  • When you need to retain sentimental aspects of your existing home.
  • When renovating an existing home is so extensive that it poses too much risk, a drain on time and revenue, and where unanticipated challenges with such things as old wiring or plumbing often cause delays and additional costs.
  • When it is cheaper to do a knockdown-rebuild than it is to do an extensive renovation.
  • When vacant land in your sought-after area is scarce and where there is little risk of over capitalising on your existing property.
  • Let’s face it. New is new. New homes are easier to maintain than older homes, they’re more energy-efficient which saves on heating and cooling bills.
  • And new means more sustainable with energy efficient solar panels, windows and insulation.
  • New homes also come with the peace of mind in the form of a construction warranty and guarantee of quality.
  • Saving on stamp duty fees, or buying/selling costs, can make your money work better for you with a knockdown-rebuild.
How much does a knockdown-rebuild cost?

There is no single price: the budget combines demolition and site preparation with the cost of the new building. Key factors include the existing structure, machinery access, asbestos removal if needed, soil and slope, the size of the new home, and selected materials and finishes.

Include temporary accommodation in your planning. IDEA Constructions can assess your site and proposed scope to prepare a project-specific estimate and detailed quote.

What other details should one consider with regards to a knockdown-rebuild?

Firstly, discuss your mortgage requirements with your lender, and have a clear understanding on how much you can borrow for your new home.

IDEA Constructions can do as much or as little of what you need:

  • All town planning requirements, council approval requirements. IDEA Constructions can help with this.
  • Existing trees – obtaining arborist reports and tree root barriers.
  • How close you are planning to build on the boundary with a neighbour.
  • Obtaining pre-excavation information about any infrastructure networks at your planned project site without needing to contact utility organisations individually.
  • Electricity and gas disconnection, meter removal and replacement.
  • Storm water discharge.
  • Crossover and Council assets.
  • Hidden surprises such as septic tanks, pools, pipes, etc.
  • Busy roads which may require traffic management during the knockdown-rebuild process.
  • Fire authority requirements for homes to be built in bush fire zones (BAL area).
  • Meeting and, whenever possible, exceeding energy efficiency requirements.
  • You need to consider if there are any easements on your site, and whether there are location and Council or Water authority restrictions.
  • If your site is a sloping site, the cost of building is usually higher due to the retaining wall requirements and foundation/subfloor design.
When is a knockdown-rebuild not the best solution?

When considering a knockdown-rebuild, it is imperative to evaluate the reasons why your current home no longer meets your requirements. The determination between renovation and knockdown-rebuild is contingent upon several factors, such as:

  • Consider why your existing home is failing to meet your needs. If the structure is good and all you need are refurbishments, then a renovation may be the way to go. But remember, the scope of a renovation project often creeps as you go along, as do costs, time and inconvenience. And with a renovation you often end up compromising on some important features.
  • If your home is heritage-listed, generally you may renovate back rooms of a heritage property such as the kitchen, bathrooms and laundry, but you must preserve the original style and structure of the front façade. Additional permits may be required from Council’s heritage department or Heritage Victoria. So if your home is heritage-listed, a knockdown-rebuild may not be an option.
What is a Bill of Quantities?

A Bill of Quantities (BoQ) is a comprehensive document utilised in construction projects that presents a detailed inventory of all the materials, components, and labour necessary to accomplish the project. It essentially quantifies every aspect of the project, outlining quantities and measurements for items such as bricks, concrete, steel, fixtures, and labour hours.