How Close Can You Build to a Private Power Pole? Clearance Rules for Pools, Driveways and Renovations in Sydney

How close can you build to a private power pole? As a general rule, overhead lines need 2.7 metres of vertical clearance above ground or a structure, 3.0 metres above a driveway, and they can never run across a swimming pool zone at all. Vegetation needs to stay 1.5 metres from bare conductors and 0.5 metres from insulated ones. If your renovation, pool or driveway plan cannot meet these clearances, the pole or line usually has to move or go underground rather than the rule being relaxed.

⚡ Quick Answers: Building Near a Private Power Pole

• What is the minimum clearance over a driveway? 3.0 metres, measured to the lowest point the conductor can sag to in hot weather, not just where it sits on a cool day.
• Can an overhead line cross my pool? No. An overhead service or private line cannot cross a swimming pool zone as defined by AS/NZS 3000, full stop, regardless of height.
• Can I build a pergola or carport under the line? Only if the finished structure still leaves the required clearance above it, and someone standing on it cannot reach the conductor, which is the "out of normal reach" test used to assess this.
• How close can a tree be to the line? 1.5 metres from bare conductors, 0.5 metres from insulated aerial bundled cable, and it is the property owner's job to keep it that way.
• What if my renovation cannot meet the clearance? The usual options are relocating the pole, converting overhead to underground, or redesigning the structure. A site visit from a Level 2 ASP will tell you which is realistic.

1. The general overhead clearance: 2.7 metres over land, 3.0 metres over driveways

The Service and Installation Rules of NSW set out minimum ground clearances for overhead service lines and private overhead mains. Over general land or a structure that isn't used by vehicles, the minimum is 2.7 metres. Over a residential driveway, where a vehicle (and potentially someone standing on its roof or tray) could pass underneath, that jumps to 3.0 metres. These figures are measured to the conductor's lowest sag point in the heat of summer, not to where it happens to be sitting on a mild day, because a line that clears comfortably in June can sag into the danger zone in January.

A separate clearance applies around television and radio aerials, set at 1.8 metres, which matters if you are adding an antenna, satellite dish or similar rooftop fitting near your existing service line.

2. The "out of normal reach" test for pergolas, carports and decks

A lot of the calls we get are about a specific structure rather than a general clearance question: "can I put a pergola here", "will a carport roof clear the line", "can I build a deck under this". The rule of thumb the industry uses is whether the conductor stays out of normal reach of anyone standing on the finished structure, its roof, or anything that could reasonably be placed on it (a ladder against a pergola post, for example). If a competent person standing at the highest point someone would realistically reach could touch the line, it fails the test regardless of how the raw vertical measurement looks on paper.

This is why we always recommend a site assessment before you finalise pergola, carport, deck or second storey plans anywhere near your private pole or overhead service. A tape measure tells you the vertical distance; it does not tell you whether the structure creates a new reach risk that didn't exist before.

3. Pools: an absolute no, not a clearance number

Swimming pools get their own rule, and it is stricter than a simple height measurement. An overhead service line or private overhead mains must not cross a swimming pool zone at all, as that zone is defined under AS/NZS 3000. It doesn't matter how high the line runs or how far it sags in summer, the line cannot pass over the pool, the coping, or the immediate surrounds that make up the defined zone. If your block layout means the only sensible pool position sits under or near the existing line's path, the practical options are moving the pool, moving the line, or converting that section of supply to underground.

This is worth checking early, before council approval or excavation, because relocating a pole or converting a run to underground both take real lead time and should be priced into your renovation budget from the start rather than discovered halfway through a pool build.

4. Vegetation: 1.5 metres from bare wire, 0.5 metres from insulated cable

Trees and overhead lines are a genuine safety issue, not just a tidiness one. Bare conductors (the older style of overhead wire many private poles still carry) need 1.5 metres of clearance from vegetation. Aerial bundled cable, the insulated modern alternative, only needs 0.5 metres, which is one of the practical reasons homeowners sometimes choose to upgrade from bare wire to ABC when they're already dealing with other pole work (see our guide on replacing old bare-wire lines with aerial bundled cable).

Keeping trees pruned back from your own private line is the property owner's responsibility, not the network's, and it is one of the most common reasons a defect notice gets issued on an otherwise sound pole and line. If you have received one, our guide to defect notice rectification covers the process end to end.

5. Crossing a neighbour's property: why some lines need an easement

Most private poles sit entirely within the property they serve, but some older installations, corner blocks, rear-lane terraces and battle-axe blocks have a service that crosses a neighbouring property to reach the point of supply. SIRNSW is deliberately cautious about this: an underground service generally should not cross an adjoining property at all, and where it genuinely cannot be avoided, a formal easement has to be registered on the title. A suspended, mid-span overhead service crossing a neighbour's block is only permitted with the neighbour's written approval for that specific installation, and it is capped at 100 amps over a maximum 20 metre span.

The detail that catches people out during a later renovation or subdivision: if that cross-property service was never installed with a registered easement and it later needs to move, the cost of relocating it falls to the customer, not the neighbour and not the network. This is exactly the situation our guide to relocating a private power pole walks through in more depth, and it is also why we check the easement and title situation as a standard part of any subdivision consult (see subdividing your block and needing a new private pole).

6. What your options are if the clearance genuinely can't be met

When a design simply cannot meet the required clearance, the realistic paths are: relocating the pole or line to a position that does clear the new structure or pool; converting the overhead section to underground supply, which removes the height clearance question entirely (see our overhead to underground conversion guide); or redesigning the structure itself, for example dropping a pergola's height, moving a driveway, or repositioning a pool within the block. Which of these makes sense depends heavily on your soil conditions, existing service capacity and budget, which is exactly what a proper site assessment is for.

Why it's Level 2 ASP work

Assessing clearance against a live overhead line, deciding whether a structure passes the out of normal reach test, and any work that changes the pole, line or its route is accredited Level 2 ASP work, not general electrical or building work. A standard electrician or builder can tell you where a pergola looks good; only a Level 2 ASP can tell you, with authority the network will actually accept, whether your plan is compliant and safe to build.

How High Demand Electrical helps

We're one of Sydney's most trusted Level 2 ASPs for private power pole work, and clearance assessments for renovations, pools, driveways and pergolas are something we're asked to check on almost every job that touches an existing pole or overhead line. We'll measure the real sag clearance rather than a fair-weather guess, tell you honestly whether your plan will pass, and if it won't, price out relocation or undergrounding so you know the real cost before council drawings are finalised. We're a licensed local team, not a call centre, servicing pole-fed homes right across Sydney.

Private Power Pole Clearance FAQs (Sydney)

Do I need approval before building near my private pole?

You don't need network approval for most structures, but you do need to meet the clearance rules, and getting a Level 2 ASP to check your plans before you build is the only way to be sure. See pole inspection and condition reporting for what a proper assessment covers.

Can I move my private pole myself or get any electrician to do it?

No. Relocating a private power pole or line is accredited Level 2 ASP work. Our pole relocation guide covers the approvals and process.

What happens if I build too close and get caught out later?

The network can issue a defect notice requiring rectification at your cost, which can mean removing or altering a structure you've already built. It is far cheaper to check clearances before you build than after.

Does converting to underground solve all clearance problems?

It solves overhead clearance issues specifically, since there is no longer a line to clear, but it introduces its own requirements around trenching, conduit depth and pit access. See our overhead to underground conversion guide for the full picture.

Are the same clearance rules different for rear-lane terraces in the Inner West?

The clearance figures themselves are the same everywhere in NSW, but rear-lane terraces often have less room to work with, which is exactly why HD Inner West's guide to private poles on terrace and rear-lane blocks is worth reading alongside this one if that's your property type.

Get a Clearance Assessment Before You Build

Planning a pool, pergola, carport, driveway or second storey near your private power pole? Get a pole inspection and clearance assessment or call 0402 559 777 and we'll check your plans against the real clearance rules before you commit to a design. Every job still needs a site assessment before scope and pricing can be confirmed.