Burning vs Burying Rubbish: What's Actually Legal, and What Actually Happens
Last updated: September 2026
Neither is a real option for household rubbish in Sydney. Burning it in your backyard is illegal without approval across almost every Sydney council area, whatever size the fire is. Burying it goes to an engineered landfill built on clay liners and leachate collection, not a hole in the ground, though even that still leaks some methane where gas capture is incomplete.
The numbers that matter
- Backyard burning of any waste is banned without approval across most of Greater Sydney, including the City of Sydney, Inner West, North Sydney, Parramatta, Northern Beaches, Sutherland Shire, Liverpool, Canterbury-Bankstown, Blacktown and Fairfield, plus Wollongong and Newcastle.
- The maximum penalty for breaching that ban is 50 penalty units for an individual and 100 penalty units for a business.
- Tyres, coated wire, paint and solvent containers, and timber treated with copper chrome arsenate (CCA) or pentachlorophenol (PCP) can't legally be burned anywhere in NSW, council approval or not.
- The World Health Organization classifies dioxin, a byproduct of burning waste such as treated timber, plastics and tyres, as a substance known to cause cancer in people.
- A modern NSW landfill cell sits on a compacted clay base at least a metre thick under a plastic liner, draining leachate through a 300mm gravel layer to a collection sump.
- About 42% of the landfill gas Australia generates is captured, concentrated at the larger sites that handle roughly three-quarters of the country's household waste by volume.
Is burning rubbish in your backyard actually illegal in Sydney?
Yes, across the parts of Sydney most people live in. The Protection of the Environment Operations (Clean Air) Regulation 2022 splits NSW councils into tiers, and the strictest tier, which bans burning "any matter" (household waste and vegetation both) in the open or in an incinerator without EPA approval, covers the bulk of Greater Sydney: the City of Sydney, Inner West, North Sydney, Willoughby, Mosman, Lane Cove, Hunters Hill, Ryde, Parramatta, Canada Bay, Strathfield, Burwood, Cumberland, Fairfield, Liverpool, Canterbury-Bankstown, Bayside, Georges River, Sutherland Shire, Campbelltown, Camden, Randwick, Waverley, Woollahra and Northern Beaches, plus Wollongong and Newcastle. NSW EPA's own summary of the regulation says burning is "generally prohibited at all times" across these areas.
A handful of council areas on Sydney's outer edge, including Hawkesbury, Penrith, Blue Mountains, Hornsby, Ku-ring-gai, The Hills Shire and Central Coast, sit in a lighter tier instead. Even there, burning household waste is only lawful if the waste was generated on that property, the burning happens on residential premises, and the property has no domestic waste collection service available to it. If your street has a bin day, that exemption doesn't apply to you.
"It's only a small fire" doesn't change the legal position, because the regulation carries a separate, standalone duty on top of the council-area rules: anyone who burns anything in the open, anywhere in NSW, has to use all practicable means to prevent or minimise air pollution, taking wind direction, weather and how wet the material is into account, and can be penalised for that alone. Backyard fire pits and barbecues are the one genuine carve-out that needs no approval, but only for dry seasoned wood, LPG, natural gas or proper barbecue fuel, not household rubbish or garden waste.
A short list of items can't legally be burned in the open or in an incinerator anywhere in NSW, in any council area, approval or not: tyres, coated wire, paint containers and residues, solvent containers and residues, and timber treated with CCA or PCP. That list lines up closely with what actually makes backyard burning dangerous rather than just illegal. Burning waste, including treated timber, plastics and tyres, is a recognised source of dioxins, and the World Health Organization has determined that dioxin causes cancer in people. NSW EPA's own guidance on treated timber is blunt about it: it "should be safely disposed of, and never burnt or buried", and the ash left behind from CCA-treated timber can be more than 10% heavy metal residue by weight, including arsenic.
There's also no real loophole in owning an incinerator. Burning anything in one without individual EPA approval requires a primary and secondary furnace, temperatures that ensure complete combustion, equipment to control air impurities in the exhaust, and it can't be installed in a unit, flat or apartment building. That's industrial equipment, not a drum in the backyard.
What actually happens when your bin gets buried
The "burying" half isn't a backyard hole either, it's a licensed, engineered landfill, and the image of a landfill as a pit that just gets covered over is decades out of date. NSW EPA's own design guideline for solid waste landfills sets out what a cell actually looks like: a compacted sub-base, then a compacted clay liner at least a metre thick with very low permeability, and for any site taking more than 20,000 tonnes a year, a plastic liner over that clay as well. Above the liner sits a 300mm gravel drainage layer with perforated pipework, sloped to carry leachate, the liquid that seeps out of decomposing waste, to a collection sump rather than into the surrounding ground. It's a containment structure, built specifically to keep what's inside it out of the soil and groundwater.
The honest nuance: landfill gas capture isn't universal
None of that makes landfill a clean answer, and pretending otherwise would be its own kind of spin. As organic waste breaks down inside a landfill cell, it produces methane, and capturing that gas is real, but it isn't complete. Nationally, about 42% of the landfill gas Australia generates gets captured, and it's concentrated at the larger sites: those handle roughly three-quarters of the country's household waste by volume, and it's mostly there that gas is collected and burned, usually to generate electricity for the grid. Landfill methane made up 97% of the 10.5 million tonnes of CO2-equivalent direct emissions that came from Australia's solid waste sector in the most recent reporting year. On the same national data, sending 20 tonnes of waste to a landfill with no gas capture produces more emissions than trucking that same load 14,000 kilometres. Gas capture is improving, and a landfill running it is a genuinely different thing to one without, but "modern landfill" isn't a guarantee across every site, it's a design choice some sites make better than others. For the fuller picture on landfill emissions and health effects, see why landfills are bad for the environment.
So which is actually better?
Neither, if the real question is "what should I do with my household rubbish, right now, in Sydney." Burning it yourself is against the law across most of the city, and the exact materials that make backyard fires genuinely toxic, treated timber, tyres, plastics, are the ones the regulation singles out by name. Burying it is legal and, done properly, engineered to contain what a backyard hole never could, but it isn't emissions-free and landfill space isn't infinite either. The honest answer isn't picking the lesser of the two, it's not choosing between them at all.
For most household waste, that route is already in front of you. Council kerbside collection, council clean-ups, and drop-off at a licensed facility all send material through processing systems built for it, rather than a fire or a backyard trench. A rubbish removal service works the same way in principle: loads go to council processing facilities that recycle, rather than being burned or buried by hand.
If your council clean-up is weeks away and the pile in the yard or garage isn't shrinking, household rubbish removal is a same-day way to clear it, without a fire or a trip to a landfill gate yourself.
