Odour complaints and statutory nuisance abatement notices

An odour abatement notice is served under section 80 of the Environmental Protection Act 1990, and it is not a planning matter. If your council's environmental health team is satisfied that smell from your premises is a statutory nuisance, it has a duty to serve, not a discretion. The notice can require you to stop the smell, to restrict when it happens, or to carry out specified works, and contravening it without reasonable excuse is a criminal offence. You have 21 days from service to appeal to the magistrates' court, and that deadline is hard.

Planning permission is no answer to any of this. A restaurant with a consented extraction scheme can still be served, because the two regimes ask different questions.

How a complaint becomes a statutory nuisance

Section 79(1)(d) of the 1990 Act covers dust, steam, smell or other effluvia arising on industrial, trade or business premises that is prejudicial to health or a nuisance. Three elements of that matter to an operator.

The premises must be industrial, trade or business premises. Odour from a domestic kitchen is not caught by this limb at all.

The smell must be either prejudicial to health or a nuisance at common law, meaning an unreasonable interference with the use and enjoyment of someone else's land. Unpleasantness alone is not enough. An officer weighs intensity, duration, frequency, offensiveness of the character of the odour, and the nature of the locality.

And the assessment is made at the receptor, not at your flue. An officer will stand in a neighbour's garden or hallway, often repeatedly and at the times complaints were made, and record what they find. Those field notes become the evidence.

What an abatement notice can require

The notice can do any combination of three things: require the nuisance to be abated or prohibit or restrict its occurrence, require works or other steps, and specify the time within which each requirement is to be met.

The drafting varies enormously in quality. A notice that says only "abate the nuisance" gives you no target to hit and is vulnerable on appeal for that reason. A notice specifying carbon filtration to a stated standard, a flue termination above eaves level, and a maintenance regime, is far harder to challenge but tells you exactly what compliance looks like.

Read the requirements against what your plant can physically achieve. If the notice requires something impossible on the building, that is a ground of appeal rather than something to negotiate informally after the 21 days have run.

The best practicable means defence

Where the nuisance arises on industrial, trade or business premises, it is a defence to a prosecution under section 80 that the best practicable means were used to prevent or counteract the effects of the nuisance. Section 79(9) defines best practicable means by reference to local conditions and circumstances, the current state of technical knowledge, and the financial implications.

Financial implications are part of the test. That does not make cost a trump card, and an operator who has never replaced a carbon cell in six years will struggle to run the defence at all.

What the defence looks like in practice is a documented system: the right technology for the cooking or process type, correctly commissioned, maintained on a schedule, with the maintenance actually performed and recorded. The defence is about what you did before the complaint, which is why it cannot be assembled after the notice arrives.

For catering premises, the national guidance on the control of odour and noise from commercial kitchen exhaust systems is the reference point environmental health officers use, and matching your installation to its risk categories is the most direct way to evidence the defence.

Appealing a notice and the deadline

The appeal goes to the magistrates' court within 21 days of service. The grounds available under the appeals regulations include that the notice was unjustified, that its requirements are unreasonable in character or extent or are unnecessary, that the time allowed is unreasonably short, that best practicable means were used, and that the notice should have been served on someone else, such as the freeholder or a different occupier.

In many cases the notice is suspended while the appeal is pending. That suspension does not apply where the authority has stated in the notice that it is to remain effective because the nuisance is injurious to health or for other specified reasons, so read the notice for that statement before assuming you have breathing space.

Appealing and negotiating can run together. Lodge the appeal to protect the position, then talk to the officer about a variation or a longer compliance period, which the court can also endorse.

Where planning conditions sit alongside

Planning controls the acceptability of the use and its physical arrangements. A condition might require an extraction and odour control scheme to be submitted and approved before the use begins, fix the hours of the cooking operation, or require the flue to terminate at a stated height. Breach of a condition is an enforcement matter under the planning Acts, with different procedures and different remedies.

Statutory nuisance controls the effect on neighbours, continuously, for as long as the business operates. Compliance with a planning condition is evidence that helps, and it is not a defence. That gap is where most operators are caught out, and the wider position on statutory nuisance after planning permission is granted repays a read before you assume the decision notice settles the matter.

A third regime overlays some activities. Where a process is regulated under the Environmental Permitting Regulations 2016, such as intensive livestock or waste treatment, the permit conditions lead and the council's ability to use statutory nuisance powers is constrained. Odour from large agricultural sources is assessed differently again, closer to the dispersion modelling described in the work on poultry unit odour and separation distance.

Records that protect an operator

Keep these from the day the plant is commissioned, not from the day of the first complaint:

• The commissioning report, with measured flow rates and pressure drops.
• A maintenance log with dates, who attended, what was cleaned and what was replaced.
• Carbon and filter replacement records, including the specification supplied.
• Grease management records for catering, including ductwork cleaning certificates.
• A complaint log recording every contact, what was happening at the premises at that time, and what you changed.
• Staff instructions, and evidence they were issued and understood.

Six years of that file is the single strongest thing an operator can put in front of a court.

Preventing the complaint in the first place

The most effective odour control costs almost nothing: a flue in the right place. Terminating above the ridge, away from openable windows, with adequate discharge velocity, removes more complaints than any filtration upgrade. Kit specified for the wrong cooking type is the second recurring failure: high-odour frying needs a different treatment train from a bakery or a sandwich operation.

At application stage, an Odour Assessment or a Ventilation/Extraction Statement sets out the system and the reasoning, and councils usually expect a suitably qualified author for the assessment work, with professional review strongly advised. Getting the design right there also gives you the paperwork you will want years later if a new neighbour moves in upstairs.

PlanScope can produce an AI-assisted draft of either document from a postcode and a few answers about the process. Reports should be reviewed before submission, and PlanScope does not guarantee planning approval. For specialist technical reports, qualified professional input may be required. Enter your postcode on PlanScope to see which reports a change of use or new plant installation is likely to need. This is general guidance, not legal advice; take your own advice on any notice you have been served before the 21 days expire.