Choosing your materials, fixtures and finishes with recyclability and low waste in mind means asking different questions before you specify.

Questions such as: what’s it made from, how does it come apart, and where does it go at the end of its life?

In this episode, I share how to consider recyclability and waste when you’re selecting for your home, plus what to discuss with your team so you can embed this approach into your project.

Listen to the episode now.

Hello! This is Episode 429. This is Way #29 of the 44 Ways to Create Your Sustainable Home series, and we’re continuing through Section Six: Choosing Materials, Fixtures and Finishes.

In this section of the ‘44 Ways’ series, I’m covering one specific criteria for choosing materials and products per episode. We’ve talked about choosing for longevity and durability in Episode 426, choosing for a low carbon footprint in Episode 427, and choosing low VOCs, natural and lox ingredients in your materials, fixtures and finishes in Episode 428.

Way #29 is: Choose for Recyclability and Low Waste.

Choosing products and materials with this in mind can shape your project in a very different way and, when making this a sustainability priority, it reaches far further than many initial considerations, as it impacts everything from the design process, through selections, to the construction site and builder’s business practices.

Recycling and reducing waste is something we’re familiar with in so many parts of our lives. In most homes, there’s a recycling bin where we separate our waste into, and put it out for collection on a regular basis. 

Out in the public domain, it’s usually expected that the waste we produce is separated and recycled where possible, products are marketed as to whether they can be, and we’re encouraged to think about recycling in most parts of our lives.

Recycling has always been seen as a pathway to reducing land fill, choosing products differently, and having a smaller footprint on the planet. But, recycling, as a sustainability metric, is now sitting quite low on the ladder of sustainable opportunities, and the 3 R’s of Sustainability list, that being ‘Reduce, Reuse and Recycle’, which was such a big part of my education as an architect in the 1990s, has now developed into a more comprehensive framework.

The scale of the problem…

If you want to receive a jolt about just how much we consume in resources and materials on a per capita basis, it’s always worth checking out the statistics that are freely available. 

You may be familiar with a website and day called ‘Earth Overshoot Day’, which looks at the point in the year at which humanity exhausts the annual regenerative resource budget of the planet. 

Earth Overshoot Day 2026 fell on July 30, marking the date when humanity’s resource consumption for the year exceeded Earth’s capacity to regenerate those resources. Only 7 months into the year, with 5 months left to go. That means we’re almost consuming twice as much as the early can annually replenish.

According to a report by the CSIRO released in 2024, Australia has successfully reduced its material footprint over the last decade, but Australia uses four times the materials to fulfil each person’s needs compared with the world average. Transport and housing make up more than half of Australia’s material footprint. 

And when we look at waste production? Well, in the 2024 – 2025 financial year, Australia generated about 79 million tonnes of waste per year. About 39% was construction and demolition waste. Only about two thirds was recovered through recycling, which may seem like a lot, but we’re talking millions of tonnes here.

An article Architecture Australia magazine in March 2025 that shared these numbers:

• Housing construction alone in Australia consumed 251 million metric tonnes of raw materials in 2019
• Construction and demolition on its own produced 27 million metric tonnes of waste. I had to look at what that means in volume – it would fill 18,000 to 20,000 Olympic swimming pools.

To break that down even further, a report called “Australia’s Wasted Opportunity 2025” that was commissioned by the Green Building Council of Australia, revealed that the construction industry generates an average of 141kg of waste per square metre built. Basically the equivalent of a fully stocked fridge per square metre. 

This report also shared that, while many projects claim high landfill diversion rates, there’s a big gap in actual material recovery. 

In multi-residential construction, for example, 22% of materials never make it into the final build. The report says it’s costing developers and owners around $52,000 per apartment.

Materials such as concrete, tiles and masonry are the largest volume, followed by excavated soil, timber offcuts, metals and plasterboard. These products are over-ordered, mishandled or being discarded during construction.

Inside HOME Method, I encourage members to remember that you pay for the WHOLE material, even the offcut that ends up in the skip bin on site. You can imagine it all adds up, and that’s a lot of money being spent on items that never make it into your project.

The Green Building Council’s report said it’s costing the industry up to $64 billion in wasted economic value over a five-year horizon.

Given the rate at which construction costs are climbing, and the cry in most locations for more and more building, it’s worth recognising that a large proportion of that waste isn’t inevitable. 

It’s the result of decisions made at the beginning of a project:

• about how a building is designed
• what products and materials go into it
• how those products and materials are ordered and managed on site
• and what then happens at the end of life of that building as well.

To truly optimise recyclability and low waste, let’s think about how you can embed this approach earlier in your project, so you can ensure recyclability is an option in the future for your home. 

It’s called ‘starting with the end in mind’. And this can involve something known as ‘designing for disassembly’

How a material is fixed into a building determines whether it can come out cleanly at the end of its life. 

A material fixed with screws, bolts, or mechanical fasteners can, in principle, be taken apart and the components reused or recycled separately. 

A material bonded with construction adhesive, or built into a composite with multiple materials that can’t be separated, and usually can’t be recovered at all. The whole assembly usually goes to landfill, regardless of what either material might have been able to do on its own.

Something to consider when specifying for low waste…

As I mentioned earlier, when you use a product or material on your project, you pay for the whole product, even the offcuts that end up in the bin. 

So, early in your project, whilst it’s still lines on a page, is when you should be looking to design to standard material sizes. Plasterboard, structural panels, and floor tiles all come in standard dimensions. 

A design drawn to accommodate those dimensions, without requiring cuts at every edge, significantly reduces offcuts and the waste they generate. Again, this is something to discuss with your team at the outset of your project. 

Let’s talk about site management and its role in lowering your waste…

What happens on site matters too. A site with no waste management plan produces mixed waste that typically goes entirely to landfill, because separating it after the fact is expensive and no one takes responsibility for it. A site with separated waste streams gives each material category, timber, metal, concrete and masonry, a pathway toward reuse or recycling.

When interviewing builders, this is something worth discussing to understand how they manage it on their sites. 

Remember, you are the one paying for all those dump runs and skip bins being loaded up at your project – it’s all part of the cost of building or renovating your home.

The more efficient a builder can be with the use of all the materials and products in your project, the less waste they produce, the more clearly it is managed, the better it is for your project overall.

In this Episode, I cover:

• The scale of the construction waste problem, including Earth Overshoot Day, Australia’s material footprint, and the $64 billion figure from the GBCA report
• Why the old three Rs (Reduce, Reuse, Recycle) have been replaced by the more comprehensive R-ladder framework of circularity
• The ten strategies of the R-ladder, from R0 Refuse and R1 Rethink at the top through to R8 Recycle and R9 Recover at the bottom
• What ‘starting with the end in mind’ looks like on a real project, using Joost Bakker’s approach as an example
• Designing for disassembly: why how a material is fixed determines whether it can be recovered at end of life
• What a Materials Passport is, and how the industry is using them to catalogue larger projects
• How to source recycled and salvaged materials, and how that shapes team selection and aesthetic expectations
• Why designing to standard product sizes (plasterboard, structural panels, tiles) significantly reduces waste and labour
• What good on-site waste management looks like, and the Melbourne project with QR-code-inducted subcontractors and multiple bins in a compact front yard
• What to ask your designer and builder to make sure recyclability and low waste actually happens on your project

Plus a whole lot more.

LISTEN TO THE EPISODE NOW.

RESOURCES:

Episode 266 with Joost Bakker >>> Zero Waste House

Episode 267 with Joost Bakker >>> Greenhouse by Joost

Episode 256, on choosing building materials >>> Choosing Building Materials

Episode 250 with Derek Layfield, Durra Panel >>> Wall and Ceiling Panels

Episode 251 with Derek Layfield, Durra Panel >>> Compressed Straw Panels

Episode 277 with Steve Marskell from Rescom >>> Magnesium Oxide Board

Episode 278 with Steve Marskell from Rescom, on how to use and specify it >>> Using Magnesium Oxide Board

Episode 279 with Steve Marskell from Rescom >>> Busting the Myths

Foundation advocating for the circular economy and designing out waste >>> Ellen MacArthur Foundation

Design Matters National on the R-ladder to circular build >>> Design Matters National

Architecture Australia: New report finds $64 billion in building materials headed to landfill without industry reform >>> Architecture Australia article

Architecture Australia: Overconsumption, a global challenge that can be addressed by architects >>> Architecture Australia article

Global Footprint Network: Country Overshoot Days >>> Country Overshoot Days

DCCEEW: National Waste and Resource Recovery Report 2026 >>> DCCEEW Waste Report

A free guide to simplifying sustainability across research, planning, design, materials, and building, from Amelia Lee’s 30+ years in residential design and construction >>> 44 Ways to Create a Sustainable Home

Access the support and guidance you need to be confident and empowered when renovating and building your family home inside my signature online program >>> HOME Method