How close to power lines is too close when buying a house?
Reviewed
There is no single residential distance that answers every power-line question. Separate the mapped line location, construction clearances, registered easements and electromagnetic-field concerns, then check each with the appropriate source.
Ask what the distance actually measures
A line-to-boundary distance and a line-to-building distance answer different questions. Neither alone establishes a construction clearance, a legal right over land or a health outcome. Before comparing two properties, establish how each measurement was made. A map may measure to a lot polygon while a selling description refers to the nearest wall. Treating those numbers as interchangeable creates a misleading impression of precision.
Map positions have accuracy and currency limits. Voltage, conductor movement, terrain and the position of a proposed structure cannot be reconstructed reliably from a small screenshot. If you plan to build, use machinery, erect scaffolding or plant near a line, consult the relevant network operator about that work. A clearance mentioned for another voltage or construction activity should not be reused as a universal house-buying rule.
Use the right source for health questions
ARPANSA publishes public information about electric and magnetic fields associated with electricity infrastructure. Read its account of the evidence and uncertainties directly. A property research page should not invent a medical safe distance or diagnose exposure from an aerial photograph. The visible size of a tower and a map distance are not substitutes for understanding the relevant technical question. If a measurement is needed, establish its purpose and interpretation first.
Keep health evidence separate from market preferences. A buyer may dislike the view of a tower, a visible corridor or audible conditions at a particular location. Those are legitimate matters to record at an inspection, but they do not establish a health effect. Likewise, a property selling for less than another property cannot prove a medical explanation. Separate claims make it easier to identify which question still lacks an answer.
Read the easement rather than guessing
An easement can give another party rights over land. For a power corridor, the registered documents may be important to access, maintenance and the use of particular areas. The actual wording and plan matter. Do not assume that every easement prevents all use of the land, or that the same restrictions apply to every corridor. A conveyancer can explain the instrument relevant to the particular title.
The absence of a visible overhead line does not establish that the title is free of electricity or other service rights. Ask for the title documents and relevant registered plans, then compare them with the lot and your intended use. Underground services are another reason a visual inspection cannot settle the issue. The legal boundary of a right and a line drawn by a volunteer mapper are different kinds of evidence.
Record the property-specific experience
View the line from the main rooms, garden and access points. Photographs from those positions are more useful than remembering that the line seemed fairly distant. Note the conditions and the location from which an observation was made. Aerial mapping helps orient the inspection, while the inspection helps establish your own preferences. Neither should be described as a technical survey simply because it feels persuasive.
If you have a proposed shed, pool or extension in mind, mark its approximate position and ask the network operator and relevant building professional what information they require. Seek an answer tied to the proposal and lot. Nearby examples can prompt questions but do not demonstrate permission for your project. Where the boundary itself is unclear, resolve the survey and title questions rather than assuming the fence is the legal reference.
Avoid a fixed discount or a universal verdict
There is no price discount that can responsibly be applied to every house near a power line. Condition, block configuration, market context and buyer preferences also affect transactions. Even a pattern in sales cannot attribute every dollar of a price difference to the line. This page does not publish valuation coefficients or a table of compulsory deductions. Evidence about an individual property should remain distinguishable from a broad market association.
The useful purchase record says which line was mapped, what the distance refers to, where the registered restrictions lie, what you intend to do and which replies remain outstanding. It gives you something concrete to discuss and revise. It does not decide whether the home suits you. A distance without that context can appear decisive while leaving the main construction, legal and personal questions untouched.
What to compare
| Question | Evidence | Who can clarify |
|---|---|---|
| Distance to what? | Map definition and any required survey | Network operator or surveyor |
| Can I build there? | Specific proposal and line conditions | Network and building professionals |
| What rights affect the land? | Title and registered instrument | Conveyancer or solicitor |
| What about electromagnetic fields? | Public health and technical information | ARPANSA and relevant specialists |
How HouseScan checks it
NSW HouseScan reports use mapped high-voltage transmission lines from OpenStreetMap and measure proximity to the lot. OSM is not a complete network asset register or a title search. No hit does not exclude overhead lines, underground cables or easements. The reported distance is not a construction clearance or a health conclusion.
Check this address
Include the state outside NSW. Reports show missing coverage explicitly.
Questions to take to the right person
- Is this distance to the lot boundary or the building?
- Does the title contain a power or other service easement?
- Who needs to respond to the specific building proposal?
- What infrastructure could be absent from this map?
Sources and further checks
- ARPANSA electrical-source FAQs
- SafeWork NSW: power lines
- SA: building safely near powerlines
- OpenStreetMap attribution and licence
Official maps and calculators can change. The map date, contract and property documents matter.