Kitchen ventilation regulations UK: rules and design needs

The cooker hood that looks like the whole solution may not be enough. A recirculating hood may not remove the need for separate extract ventilation in a domestic kitchen. A recirculating hood can be used, but it doesn’t remove the need for this separate extract ventilation.

It’s easy to focus on a cooker hood’s appearance and position, but the design also needs to manage airflow and cooking fumes while fitting the room’s layout. Getting these details right helps make a kitchen comfortable to use as well as carefully finished.

This guide explains how Part F applies, when planning permission may be needed, and which standards and design considerations matter. It also explains how requirements differ for a hood above the hob, an extract fan elsewhere in the kitchen, and commercial cooking spaces.

Do I need planning permission to install an extraction system?

Building regulations differ across the UK. England uses Approved Document F, while Scotland, Wales and Northern Ireland have their own building regulations and guidance. The applicable requirements depend on the property’s location.

For a domestic kitchen, consider ventilation requirements separately from planning permission. Planning permission concerns the proposed building work, particularly changes to the property’s exterior. Adding an external duct or discharge point can have a different planning impact from replacing a fan without changing the exterior. Commercial systems have a clearer rule: planning permission is required when installation, replacement or relocation involves equipment outside the property and changes its external appearance. Local authorities may also require permission for commercial ductwork and discharge points.

Ventilation requirements apply to more than kitchens. A new kitchen, bathroom or shower room, utility room, or toilet should have extract ventilation. In England, the system should meet section 1, page 8 of Approved Document F. During a kitchen or bathroom refurbishment, retain or replace existing extract ventilation. If the room has no existing system, providing one during refurbishment isn’t required, although it may be installed voluntarily. This distinction helps homeowners separate new-room requirements from work to an existing room.

A ventilation system may combine extract ventilation, whole-building ventilation and purge ventilation. Extract ventilation removes moisture and pollutants at their source; purge ventilation provides rapid air replacement through an opening. For purge ventilation, an opening angled between 15 and 30 degrees should have an area of at least 1/10th of the room’s floor area. At an angle greater than 30 degrees, the opening should be at least 1/20th. Whole-building ventilation equivalent areas for a kitchen are 8,000 mm² in a multi-storey building and 10,000 mm² in a single-storey building. Proper airflow depends on how these functions work together.

Commercial kitchens also need to address workplace exposure, fire safety and pollution. The National Archives (legislation.gov.uk) states that the Control of Substances Hazardous to Health (COSHH) Regulations 2002 require control of exposure to hazardous substances, including kitchen fumes, to prevent employee health risks in the UK. The Regulatory Reform (Fire Safety) Order 2005 and Environmental Protection Act 1990 are also relevant to commercial fire safety, odour nuisance and emissions.

Grease can block inlets, reduce extraction and increase fire risk, so commercial systems need regular cleaning and maintenance. TR/19 gives these grease-cleaning intervals:

• Light use, operating 2-6 hours per day: every 12 months.
• Moderate use, operating 6-12 hours per day: every 6 months.
• Heavy use, operating 12-16 hours per day: every 3 months.

For domestic fans, plan access for replacing filters, cleaning the fan and ductwork, and replacing the unit. Maintenance access is part of good system design, not an afterthought.

The key difference is which nation’s rules govern the installation. Check the requirements for the property’s location rather than assuming they are uniform across the UK.

What are The Key Changes & Requirements of Part F Regulations?

Part F of the Building Regulations addresses ventilation, including adequate airflow in buildings. In England, Approved Document F gives practical guidance, with Volume 1 covering dwellings and Volume 2 covering buildings other than dwellings. That distinction matters: a commercial kitchen’s cooking load, occupancy and building use shape its ventilation design.

For a building outside the dwelling category, the design must provide ventilation suitable for its use. In a commercial kitchen, this means considering how extraction removes cooking fumes and how fresh air replaces it. Part F sets ventilation requirements and works alongside other rules on workplace safety and fire protection. A system designed for a home kitchen should not automatically be treated as compliant for a restaurant or other workplace.

Whole-building ventilation, sometimes called background or trickle ventilation, supplies air continuously rather than only during cooking. It works alongside extract ventilation, which removes pollutants at source, and purge ventilation, which provides rapid air replacement. Part F generally expects both purge and whole-building ventilation, although a building control body may accept an alternative approach. The design should account for how these functions work together rather than relying on one fan to do every job.

Fire safety is also covered by Part B of the Building Regulations. For commercial kitchens, its requirements include fire-resistant ductwork and fire suppression systems. Duct routes affect more than airflow: the design must account for the building’s fire-safety provisions, particularly where extraction ductwork passes through areas that need to maintain fire separation.

Transitional arrangements can affect which version of the ventilation requirements applies to building work in England. The 2022 requirements may apply under transitional provisions where work started before 15 June 2023 and the relevant notice or full plans were submitted before 15 June 2022. For a site with several buildings, only individual buildings where work has commenced can use those provisions. Earlier versions of Approved Document F continue to apply to buildings covered by previous regulatory standards.

Building oversight also forms part of the regulatory picture. Since April 2023, the Building Safety Regulator has had a duty to keep the safety and standards of all buildings in England under review. For a project, the applicable Approved Document depends on the building’s regulatory history and the work’s timing. The terms “building notice”, “initial notice” and “full plans” have the meanings given in Regulation 2 of the Building Regulations 2010. Those formal routes help establish which requirements apply and what information building control needs to assess.

Kitchen ventilation standards and guidance

Part F and its supporting documents explain ventilation expectations for different building types. For homeowners, the relevant guidance depends on whether the property is a dwelling and which standards apply.

DW/172 Kitchen Guidance

DW/172 is industry guidance for designing, installing and maintaining commercial kitchen ventilation systems. It covers canopy sizing, airflow rates, grease filtration and fire safety, helping designers address the demands of cooking spaces. Its scope matters because commercial kitchens need systems suited to their appliances, layout and working conditions, rather than domestic ventilation assumptions.

Workplace duties also shape the design. According to The National Archives (legislation.gov.uk), the Workplace (Health, Safety and Welfare) Regulations 1992 require employers in the UK to provide efficient and appropriate ventilation in every enclosed workspace. The National Archives (legislation.gov.uk) states that the Health and Safety at Work etc. Act 1974 places duties on employers to provide a working environment that is safe and does not pose a risk to employee health.

For commercial cooking, HSE guidance recommends mechanical extraction through a canopy hood above cooking appliances. The hood should capture fumes at the appliance and discharge them to a safe location. Ventilation should also supply enough air for complete combustion at fire appliances and help prevent carbon monoxide accumulation. HSE advises against using freestanding fans as mechanical ventilation because they can spread microorganisms, disrupt extraction efficiency and create trip hazards.

For dwellings in England, Approved Document F provides guidance on domestic ventilation. The 2021 Edition of Building Regulations 2010 Approved Document F for Domestic Ventilation is identified as relevant guidance, while Approved Document F (2026) gives guidance for buildings subject to the 2026 standards. The 2022 amendments and accompanying Approved Documents F for Volumes 1 and 2 came into force in England on 15 June 2022. Updates made testing and commissioning an installed fan a legal requirement.

Checking Existing System Compliance

To assess an existing system, compare its installation and performance with the guidance that applies to the home or workplace. A fan’s presence alone does not show that ventilation is adequate. Identify whether the system is intermittent or continuous, inspect its extract route, and look for commissioning or maintenance records describing its operation.

Homeowners can use the relevant Approved Document F guidance to compare the fan arrangement with the required ventilation approach. Check that the fan works, filters and ductwork are accessible for cleaning, and replacement air can reach the room. For an older installation, the building’s regulatory history helps identify which guidance applies. In England, earlier Approved Document F versions remain relevant to buildings subject to previous regulatory standards.

Kitchen ventilation design considerations

A well-designed extractor captures cooking fumes where they form, then moves them through a suitable route without compromising the kitchen layout. The main decisions are hood position, airflow, duct route, replacement air and cleaning access. Together, these connect practical requirements with how you want the finished room to look and function.

For a domestic cooker hood used to meet the kitchen extraction requirement, position it directly above the hob. If the manufacturer doesn’t specify a mounting height, the stated guidance places it 650mm to 750mm above the hob surface. A newly installed domestic extractor fan should be no more than 400mm below the ceiling. These measurements matter when planning cabinetry, particularly where wall units sit near the cooking area.

How should an extractor fan be installed, ducted and vented outside? Position a cooker hood directly above the hob, then route its extraction duct to an external discharge point. Plan the route around the room layout, keeping the fan, filters and ductwork accessible for maintenance.

Natural ventilation uses doors, windows and other openings to provide air. Mechanical ventilation uses fans to move air into and out of rooms. A good design allows replacement air to reach the kitchen while extraction runs. In commercial kitchens, replacement air should be fresh and clean from outside, not drawn from smoking areas or near waste storage. Air movement should also avoid causing discomfort for staff.

For commercial cooking, a canopy hood above appliances such as ovens captures grease, fumes and hot air. HSE guidance advises considering the cooking load, equipment, kitchen layout, staff numbers, and cleaning and maintenance needs. Canopies and ductwork should use materials that discourage dirt, grease and condensation. This is why kitchen ventilation regulations UK homeowners and commercial operators encounter can lead to different design priorities: the cooking environment and building use matter.

Fire safety also affects commercial duct design. Where kitchen ducting passes through fire-rated walls or ceilings, fire dampers are required under the stated guidance. Precautions include fire-resistant materials, fire suppression systems and access for cleaning. Before installation, consider how the duct route can accommodate these elements without obstructing the cooking space.

Build cleaning access into the design. Domestic extractor fans need access for filter replacement, cleaning the fan and ductwork, and replacing the unit. In commercial kitchens, grease can block air inlets, reduce effectiveness and increase fire risk. A practical layout keeps filters and ductwork accessible without dismantling surrounding cabinetry or disrupting the cooking area. When planning a new layout, consider kitchen ventilation regulations UK requirements alongside hob placement and cabinetry, not after fitting begins.

What minimum kitchen extract rates are required in the UK for intermittent and continuous fans?

In England, Approved Document F sets different minimum extract rates according to the kitchen fan arrangement. The main distinction is whether extraction comes from a cooker hood directly above the hob, a separate fan, or a continuous fan serving a kitchen without effective hood extraction.

• Intermittent cooker hood above the hob: at least 30 litres per second.
• Intermittent extract fan away from the cooker hood: at least 60 litres per second.
• Continuous fan with no cooker hood, or a recirculating hood: at least 13 litres per second on boost.

These are minimum rates, not interchangeable targets. For example, a hood mounted directly over the hob uses the 30 litres per second figure. An extract fan positioned elsewhere in the kitchen uses the 60 litres per second figure. A recirculating hood filters and returns air to the room, so it doesn’t replace the required continuous extract fan. In that arrangement, the fan must provide at least 13 litres per second when operating on boost.

The fan type and location matter as much as its appearance. Check the product documentation for the stated extraction rate and operating mode, then compare those details with the intended installation. A fan’s high setting does not establish compliance unless its actual rate meets the requirement for that arrangement.

Design affects whether the installed system can deliver its intended airflow. To meet the cooker-hood requirement, the hood should sit directly above the hob. The duct route, external outlet and availability of replacement air all affect how the system works. Keep filters and ductwork accessible, as grease build-up and blocked airflow can reduce extraction performance.

Commissioning is also part of the installation process. The 2022 updates to Approved Document F made testing and commissioning an installed fan a legal requirement. This helps establish that the fan operates as intended, rather than relying only on its model specification. Retain the installation and commissioning information with household documents, particularly after a refurbishment or fan replacement.

For an existing kitchen, identify whether the system is intermittent or continuous, whether the hood is directly above the hob, and what extraction rate its documentation records. Then compare the arrangement with the applicable Approved Document F guidance. The figures above are England’s stated domestic kitchen minimums; Scotland, Wales and Northern Ireland have separate building regulations and guidance.

If you’re planning a new kitchen, explore kitchen design options with ventilation layout and appliance placement considered together.

Bowkirk Kitchens & Bedrooms: Modern Kitchens

Bowkirk Kitchens & Bedrooms brings ventilation considerations into the wider kitchen design, coordinating cabinetry, hob position and extraction. When planning a new kitchen or changing the layout, work with the team to consider airflow alongside the room’s finish and function.

Choose from Modern, Traditional, Shaker and Handleless Kitchens, with a design tailored to your home. The process includes 3D design and professional fitting, helping connect the chosen layout with the everyday needs of cooking and ventilation.

To discuss your kitchen plans, contact Bowkirk Kitchens & Bedrooms.

Shape your kitchen around the way you live

Ventilation works best as part of the overall kitchen design, not as a last-minute appliance choice. Consider how cooking habits, hob placement, cabinetry and the route for extracted air fit together. This creates a clearer brief for balancing everyday comfort with kitchen ventilation regulations in the UK.

Bowkirk Kitchens & Bedrooms offers Modern Kitchens, Traditional Kitchens and Shaker Kitchens, with design choices tailored to your home and preferences. Whether you’re updating a familiar layout or creating a different feel, thoughtful coordination connects practical details with the atmosphere you want.

Take the next step with your kitchen plans and contact Bowkirk Kitchens & Bedrooms. A carefully considered design can make your kitchen a more inviting, functional centre of home life.

Frequently Asked Questions

Can Recirculating Hoods Be Used As Kitchen Ventilation?

A recirculating hood can be part of a kitchen ventilation arrangement, but it doesn’t replace extract ventilation. In England, a domestic kitchen with a recirculating hood needs a continuous fan extracting at least 13 litres per second on boost. The hood filters and returns air to the room, while the separate fan provides extraction. For a Castleford home, the applicable England guidance depends on the building work and regulatory standards covering the property.

Is It a Legal Requirement to Have an Extractor Fan in the Kitchen UK?

New kitchens should have extract ventilation under the stated building guidance. That does not always mean a cooker hood: an extract fan can provide ventilation if its position and performance meet the relevant requirements. For an existing kitchen refurbishment with no ventilation system, adding one is not required under the stated guidance, although it may be installed voluntarily. Existing extract ventilation should be retained or replaced during a kitchen refurbishment.

Do I need a canopy for electric cooking appliances?

A canopy is not the only way to provide domestic kitchen extraction for electric cooking. In England, the required setup can use a cooker hood above the hob or an extract fan elsewhere, with different minimum extract rates for each arrangement. Commercial kitchens have separate design considerations: HSE guidance recommends a canopy hood over cooking appliances to capture fumes at source. The appliance type alone does not determine the ventilation design.

Is it Illegal to Work in a Kitchen Without Ventilation?

Employers must provide efficient and appropriate ventilation in every enclosed workspace under the Workplace (Health, Safety and Welfare) Regulations 1992. The Health and Safety at Work etc. Act 1974 also places duties on employers to provide a safe working environment that doesn’t risk employee health. In a commercial kitchen, ventilation must address cooking fumes and workplace air quality. These duties concern employers; they’re different from domestic kitchen requirements.

What is Part F?

Part F is the section of England’s Building Regulations that deals with ventilation. Its guidance explains how buildings can provide an adequate air supply and remove pollutants, with separate Approved Document F volumes for dwellings and other buildings. For homeowners, it helps determine the ventilation approach for a new kitchen or relevant building work. Scotland, Wales and Northern Ireland have their own building regulations and supporting guidance.

What UK building regulations apply to kitchen ventilation in homes?

In England, Part F and Approved Document F address ventilation in dwellings, including kitchens. Part B addresses fire safety, which may affect ductwork where relevant. Rules and guidance differ across the UK, so a home in Castleford follows the England framework, while properties elsewhere may follow their nation’s rules. The building’s regulatory history can also affect which version of Approved Document F applies.

What are the Approved Document F ventilation requirements for kitchens in England?

For an intermittent system, an English kitchen cooker hood directly above the hob needs an extract rate of at least 30 litres per second. A kitchen extract fan located away from a cooker hood needs at least 60 litres per second. If there’s no cooker hood, or it recirculates air, a continuous fan must provide at least 13 litres per second on boost. Testing and commissioning an installed fan is also required.

Are cooker hoods required by UK building regulations, and can recirculating hoods meet the rules?

Building guidance calls for kitchen extract ventilation, but a cooker hood isn’t the only possible extract device. A recirculating hood alone doesn’t meet the extract requirement because it returns filtered air to the room. In England, pair it with a continuous kitchen fan that extracts at least 13 litres per second on boost. A separate extractor’s position matters too, since a fan away from the hob has a different minimum rate.