Shisha lounges: ventilation, smoking rules and use class

A shisha lounge is rarely as simple as a cafe with pipes. Two separate legal regimes bite at once: the smoke-free rules in the Health Act 2006, which ban smoking in enclosed and substantially enclosed public places, and planning control over the use of the premises and any structure built outside to get around that ban. Most enforcement cases start when a business builds a smoking area that looks open from the street and turns out to be enclosed on the numbers.

The planning question and the smoke-free question have different answers, and satisfying one does not settle the other.

Use class and why it is contested

Since the 2020 amendments to the Use Classes Order, cafes, restaurants and most retail and service uses sit inside Class E, which allows movement between those sub-classes without planning permission. A premises serving food and soft drinks can be Class E(b). A shisha lounge that mainly sells the smoking of waterpipe tobacco, with refreshments as a sideline, is treated by many authorities as sui generis, because the primary activity is not the sale of food or drink for consumption on the premises.

That distinction decides whether you need permission at all. If the lawful use is Class E(b) and the shisha offer is a sideline, there may be no material change of use. If the character of the use has changed, with late hours, outdoor smoking areas and a different customer profile, a change of use application is needed and the authority will assess it on amenity grounds.

Where the position is arguable, a certificate of lawfulness for a proposed use under section 192 of the Town and Country Planning Act 1990 is the formal way to test it. Our note on uses inside Class E explains how far the flexibility goes, and the piece on sui generis service uses covers the same argument for other trades.

Smoke-free legislation and enclosed spaces

The Health Act 2006 and the Smoke-free (Premises and Enforcement) Regulations 2006 define two categories. Premises are enclosed if they have a ceiling or roof and, apart from doors, windows and passageways, are wholly enclosed, whether permanently or temporarily. Premises are substantially enclosed if they have a ceiling or roof but the openings in the walls are less than half of the total wall area.

That 50 per cent test is measured, not judged by eye. Openings include doorways and gaps, but a roof, a canopy or an awning counts as a ceiling, and retractable screens count as walls when they are down. Enforcement sits with the local authority's environmental health team, and the offence is committed by the person who manages or controls the premises as well as by the smoker.

The planning consequence is that a compliant shisha area is by definition open to the air on more than half its perimeter, which is precisely the condition that lets noise and smoke reach neighbouring windows. Design for both regimes at once or you will fail one of them.

Outdoor structures and how enclosed they may be

Putting up a permanent canopy, pergola or garden room in the rear yard is usually operational development needing permission, and in a conservation area or on a listed building the bar is higher still. Temporary structures are not a way round it: a marquee left in place through the season is development, and the smoke-free definition expressly covers temporary enclosure.

Officers look at four things on the drawings.

• The percentage of wall area open, calculated and shown on the elevations
• The height and material of any boundary screening, since a high fence can turn an open shelter into a substantially enclosed one
• Distance to the nearest residential window and whether that window is habitable
• Whether the area is heated, lit and furnished in a way that shows year round evening use

Submit the open area calculation with the application. It is the single number that environmental health will ask for, and providing it early prevents a refusal on the grounds that compliance has not been demonstrated.

Charcoal, carbon monoxide and ventilation

Waterpipe smoking uses burning charcoal, which produces carbon monoxide as well as smoke. The Health and Safety Executive has warned about carbon monoxide exposure in shisha premises, and poorly ventilated indoor or semi-enclosed areas have produced dangerous concentrations. Where charcoal is prepared indoors, a dedicated extraction point over the burner is normally expected, separate from any general ventilation.

A ventilation and extraction statement should describe the make-up air route, the extraction rate, the discharge height and the odour control method, and it should be clear that ventilation does not make an enclosed area lawful for smoking. Ventilation addresses the planning concerns about odour and the health concerns about carbon monoxide. It does not change the enclosure test.

Discharge position causes more objections than anything else. Terminating a duct below the level of upper floor windows in a tight urban block will draw complaints, and the fix after installation is expensive.

Noise and dispersal late at night

Shisha premises trade late, and the noise that reaches objectors is usually people rather than music: groups in an open courtyard at midnight, doors opening and closing, and taxis on the street. Standard amplified music assessments miss this.

A noise impact assessment for this use should include a baseline survey at the hours actually proposed, an assessment of patron noise in the outdoor area at realistic occupancy, and a dispersal plan covering how customers leave. Where the outdoor area is the smoking area, its capacity is the noise control, so set it deliberately and be ready to accept it as a condition.

Licensing and planning running together

A premises licence under the Licensing Act 2003 is needed for late night refreshment after 11pm and for alcohol. Licensing and planning are separate regimes with different tests, and a licence does not authorise a use that has no planning permission. Committees say this often, and applicants still assume one follows the other.

Run them in parallel with consistent numbers. If the licence application says 60 customers to 2am and the planning application says 30 to midnight, one of them will be refused, and the inconsistency will be quoted back at you.

Conditions councils impose

Expect conditions limiting opening hours, restricting the use of the outdoor area after a stated time, capping the number of customers in that area, requiring the extraction system to be installed before opening and maintained, requiring a noise management and dispersal plan, and preventing the enclosure of the outdoor area beyond the approved open percentage. Some authorities add a condition requiring signage about carbon monoxide.

Read the conditions before you fit out. A condition that the outdoor area closes at 10pm changes the business model, and it is easier to argue at the draft stage than to vary later under section 73.

PlanScope drafts the supporting documents for a change of use application, including the ventilation and extraction statement and the noise section of the planning statement, and flags where site measurements are missing. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval. For specialist technical reports, qualified professional input may be required, and acoustic and extraction design should come from a suitably qualified consultant.

This is general guidance, not legal advice. Smoke-free enforcement and use class views vary between authorities, so check with your local planning authority and environmental health team before fitting out. Enter your postcode on PlanScope to see which reports the premises is likely to need.