Situations where one is commonly requested
- Installing a heat pump, air conditioning, plant or extraction equipment near neighbours.
- Changing the use of a building to something that may generate noise (e.g. a gym, café, workshop or venue).
- Building new homes near roads, railways, airports or existing businesses.
- Converting commercial buildings to residential use.
- Commercial or industrial developments near homes.
- Where a planning condition requires noise details to be approved.
When a council has already mentioned it
If the council has used words like “noise”, “acoustic”, “BS 4142”, “BS 8233” or “Environmental Health”, keep a copy of exactly what they wrote. That wording is the single most useful thing you can give a consultant.
If you're still not sure
That's completely normal. Our checker asks a few plain-English questions and turns your answers into a structured summary. A consultant can then confirm whether an assessment is needed and what it should cover.
Common questions
Who decides if I need one?
The local planning authority decides what information it needs to determine your application or discharge a condition. A consultant can help interpret the request.
Can I ask the council directly?
Yes — and it's often worth doing. Any written response from them is helpful to share with a consultant.
This page is general information, not professional acoustic or planning advice. An acoustic consultant can confirm what applies to your project.