Statutory nuisance and why planning conditions matter more

Two separate regimes control the noise your business makes, and for an operator the planning condition is usually the dangerous one. Statutory nuisance under Part III of the Environmental Protection Act 1990 starts with an abatement notice that you can appeal within 21 days on a long list of grounds, and it carries a best practicable means defence for trade and business premises. A planning condition controlling the same noise is enforced by a breach of condition notice under section 187A of the Town and Country Planning Act 1990, which carries no right of appeal at all. Operators tend to worry about the environmental health officer and ignore the condition, and that is the wrong way round.

Two regimes over the same noise

The same extraction fan can be regulated twice, by two teams in the same council building, on two different tests.

Statutory nuisance asks whether the noise is a nuisance or prejudicial to health, judged by its effect on ordinary people in the locality. It is a question of degree and judgement, informed by measurement rather than decided by it.

A planning condition asks whether the plant complies with a stated limit, typically expressed as a rating level relative to the background sound level at a defined receptor, assessed by a published method. It is pass or fail against a number.

Those are different questions. Plant can comply with its condition and still be a statutory nuisance, and it can breach its condition while nobody has complained at all.

What makes something a statutory nuisance

Section 79 of the 1990 Act lists the categories. For a business the relevant ones are usually noise emitted from premises, smoke, fumes or gases, dust, steam, smell or other effluvia arising on industrial, trade or business premises, and artificial light.

Each has the same qualifier: the matter must be prejudicial to health or a nuisance. Annoyance alone is not enough, and neither is a single episode in most cases. Officers look at loudness, duration, frequency, time of day, the character of the area and whether the activity is reasonable in that location.

Where the authority is satisfied a statutory nuisance exists, or is likely to occur or recur, it must serve an abatement notice. That duty is not discretionary once the finding is made, which is why the finding is the thing to argue about.

Abatement notices and the defences

An abatement notice may require the nuisance to be abated, prohibit or restrict its recurrence, and require works to be carried out, with a time limit for compliance.

Best practicable means is the defence that matters. It takes into account local conditions, the current state of technical knowledge and the financial implications, and it is why a well-maintained, well-specified installation with a documented maintenance regime is defensible while a neglected one is not.

An individual can also bring proceedings directly under section 82 without the council being involved, which is worth knowing because it removes your ability to negotiate with an officer.

Why the planning condition is easier to enforce

Section 187A allows the authority to serve a breach of condition notice requiring compliance with the condition. There is no appeal to the Planning Inspectorate and no appeal to the magistrates court against the notice itself. The only route of challenge is judicial review, which is slow, expensive and concerned with the lawfulness of the decision rather than its merits.

Prosecution then turns on whether the condition was breached. The defences are narrow, and best practicable means is not among them.

That asymmetry explains a pattern operators notice and misread. An officer dealing with a persistent complaint will often check the planning conditions first, because enforcing them is simpler than proving a nuisance. A condition requiring plant noise not to exceed a stated level, or limiting hours of operation, or requiring an extraction system to be maintained in accordance with an approved specification, gives the council a measurable test and a notice you cannot appeal.

Read your conditions. Operators frequently inherit premises with conditions nobody has looked at since the permission was granted, limiting delivery hours or requiring an odour abatement system to be serviced at a stated frequency.

A permitted use that still causes a nuisance

Planning permission does not authorise a nuisance. Operating exactly in accordance with a permission is no answer to an abatement notice, and the Supreme Court confirmed in 2014 that a planning permission does not of itself provide a defence to a claim in nuisance, although the character of a locality may change over time in ways that affect the assessment.

For an operator the practical implication is simple. Permission tells you the use is acceptable in planning terms. It does not tell you that the way you run it is acceptable, and the environmental health regime applies from the day you open.

This matters most for uses where the permission was granted on an assessment of plant that was never installed exactly as modelled, or where the business has grown. Late opening, more frequent deliveries and an upgraded kitchen all change the position without changing the permission. The position after permission is granted is dealt with further in statutory nuisance after planning permission is granted.

Practical steps when complaints start

Move quickly and in writing, because the paper trail is what the best practicable means defence is made of.

1. Acknowledge the complaint and record the date, the time, the nature and the complainant's description.
2. Attend at the time the problem is reported rather than during the working day, and record what you find.
3. Have the plant inspected, with bearings, mountings, fan balance, duct supports and attenuators all checked, since mechanical deterioration causes most new noise complaints at premises that were previously fine.
4. Commission a measurement by a suitably qualified acoustician against the relevant assessment method, at the receptor rather than at the plant.
5. Implement the practicable fixes and write down the ones you considered and rejected, with the reasons.
6. Talk to the environmental health officer before the notice is drafted rather than after.

Where the fix requires a change to something a condition fixes, such as operating hours or an approved equipment specification, an application under section 73 to vary the condition is the proper route rather than quietly doing something different.

Odour runs on the same principles with a different method, and that comparison is set out in odour complaints, statutory nuisance and abatement notices.

Records that protect a business

Keep four things and most problems become manageable.

A commissioning record for every item of plant, with measured performance at installation. A maintenance log with dates, the work done and who did it. A complaints log with your response to each one. And the original approved documents: the permission, every condition, the approved plant specification and any noise impact assessment or ventilation and extraction statement submitted with the application.

That last bundle is the one most operators cannot find, particularly where premises have changed hands. Request the file from the council at the point of purchase, not at the point of complaint.

Enter your postcode on PlanScope to draft the noise and extraction evidence for a change of use or new plant.

This is general guidance, not legal advice; check the position with your local planning authority, environmental health team or a qualified professional before relying on it. Noise assessment is work councils expect from a suitably qualified author, and professional review is strongly advised.

PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval.