Not all powerlines are the same. And confusing them could cost you thousands.

In Australia, powerlines fall into two broad camps: distribution and transmission.

Distribution lines are the ones that deliver electricity from substations to your home. They range from 240V (that’s your standard household power) up to 66kV. These are the wooden poles lining suburban streets. Common. Usually unremarkable. The kind of thing you stop noticing after a week.

Transmission lines are a different beast. They move bulk electricity at high voltages from power stations to major substations. We’re talking 132kV, 275kV, 330kV, or 500kV. These are the big steel lattice towers – the ones that make you look up and wonder who approved a house being built this close.

Here’s what each actually looks like in practice – and what it means for your money:

66kV – distribution

→ Wooden poles or single stobie poles

→ Easement around 30 metres

→ Common in suburban streets – you’ve probably walked past one today

→ Most lenders comfortable. Valuers rarely flag it.

132kV – sub-transmission

→ Larger poles or small steel structures

→ Towers around 30 to 40 metres high

→ Easement varies – often 30 to 40 metres

→ This is where lender and valuer scrutiny starts to pick up

→ Some buyers get cautious – which means a smaller resale pool

330kV – transmission

→ Steel lattice towers, typically 50 to 60 metres tall

→ Easement up to 58 metres wide

→ Some lenders restrict lending. Others decline outright.

→ Valuers commonly discount the property

→ Noticeable reduction in your resale buyer pool

500kV – major transmission

→ Towers between 60 and 80 metres tall – taller than a six-storey building

→ Easement up to 65 metres wide

→ Some lenders simply won’t finance properties in close proximity

→ Significant valuation, insurance, and resale implications

Same word. Four completely different risk profiles. And most people lump them all together.

Why voltage matters more than “proximity”

Most advice about powerlines focuses on distance. “How far away is it?” And sure, that matters. But distance without voltage is meaningless.

A property 40 metres from a 66kV wooden pole? Most lenders won’t bat an eye.

The same property 40 metres from a 500kV transmission tower? Some lenders will decline the application outright.

Same distance. Completely different outcome.

Because lenders don’t just count metres. They look at the type of infrastructure, the voltage, the easement width, and the visual impact. A 66kV pole down the street barely registers. A 330kV tower dominating the skyline behind the backyard? That’s a material consideration. It shapes the comparable sales the valuer picks, the adjustments they make, and the number that ends up on the report.

How to tell what you’re looking at

You don’t need an engineering degree. A few practical indicators:

→ Structure type – wooden pole usually means distribution (up to 66kV). Steel lattice tower means transmission (132kV and above). Bigger structure, higher voltage. Simple.

→ Height – distribution poles are typically under 15 metres. Transmission towers range from 30 to 80 metres depending on voltage.

→ Insulator count – each disc insulator on a tower handles roughly 10kV. Count the discs on one string. Ten discs? Roughly 100kV. Thirty discs? You’re looking at 275–330kV.

→ Easement signage – transmission easements are usually marked and registered on title. The certificate of title should show the easement width and purpose.

→ Network operator maps – AusNet, TransGrid, Powerlink and others publish network maps. If in doubt, go to the source.

Where this actually hurts

Lending

Lender policies on powerlines aren’t standardised. One lender might approve a property 50 metres from a 330kV tower. Another will decline it at 150 metres. Internal risk appetites vary widely – and they change over time. A property that was financeable two years ago might not be today.

If you’re buying with finance and you haven’t checked the specific lender’s position on the specific voltage class – you’re gambling on approval.

Valuation

Valuers flag proximity to high-voltage infrastructure. If a property falls within a zone they consider material – especially for transmission-class lines (132kV and above) – the assessed value drops. You’re paying $800,000 but the valuer says $740,000? That’s a $60,000 gap you need to cover out of your own pocket.

Insurance

Less talked about than lending or valuation, but some insurers factor high-voltage proximity into their risk assessment. More relevant for transmission-class infrastructure and properties directly under or next to easements.

Resale

This is the long game – and the one most people underestimate. Even if you’re comfortable buying near transmission infrastructure, the next buyer might not be. The higher the voltage, the bigger the visual impact. The bigger the visual impact, the smaller the buyer pool. Fewer buyers means less competition. Less competition means downward pressure on price.

That’s not a one-off hit. It’s a structural drag on long-term growth.

The mistake most buyers make

They treat “powerlines” as a binary. Yes or no. Good or bad. Stay or run.

That’s lazy. And lazy due diligence costs real money.

A good buyer’s agent doesn’t just say “there are powerlines nearby.” They ask: what voltage? What class? What’s the easement width? What’s the distance from the conductor to the building wall? What do the lender panels actually say for that specific setup?

Because a 66kV wooden pole and a 500kV steel tower are not the same conversation. Not even close.

What proper due diligence actually looks like

If you’re buying anywhere near transmission infrastructure, here’s the minimum:

→ Identify the voltage. Don’t guess. 66kV, 132kV, 330kV, and 500kV each carry different implications for lending, valuation, and resale.

→ Check the easement. Is it registered on title? What’s the width? What restrictions come with it?

→ Measure the distance properly. Conductor to building wall – not tower to front door.

→ Confirm the lender’s position. For the specific voltage, at the specific distance. Not a generic “powerlines are fine” from a broker who hasn’t checked.

→ Think about resale. What does this look like through the eyes of the next buyer – not just yours?

Final thought

Powerlines are one of the most misunderstood risk factors in property. Not because the information isn’t out there – but because most people don’t look past the surface.

Knowing the voltage is step one. Getting the full picture – easement, distance, lender position, valuation impact – is where real due diligence starts.

At Premier Buyers, this is the level of detail we bring to every acquisition. Our job isn’t just to find you a property. It’s to make sure the one you buy doesn’t come with surprises you can’t afford.

If you’re buying an investment property and want someone who checks what actually matters – get in touch.