Construction site welfare facilities: what CDM 2015 requires

The legal basis

The requirement for welfare facilities on construction sites comes from Schedule 2 of the Construction (Design and Management) Regulations 2015 (CDM 2015). This schedule sets out minimum standards for sanitary conveniences, washing facilities, drinking water, changing rooms, rest facilities, and accommodation for clothing.

The principal contractor is responsible for ensuring these facilities are in place and maintained throughout the project. On single-contractor projects, the contractor holds this duty. Welfare facilities must be available from the first day that construction work begins. The pre-construction information and the construction phase plan should both address welfare provision.

HSE inspectors routinely check welfare facilities during site visits. Failures are among the most common issues found on construction sites, and they can result in improvement notices or prohibition notices if conditions are serious enough.

Toilets and washing facilities

The regulations require suitable and sufficient sanitary conveniences and washing facilities. In practice, this means:

• Flushing toilets connected to mains drainage where reasonably practicable. Where this is not possible, chemical toilets are acceptable but must be serviced regularly.
• Separate facilities for men and women, or lockable individual cubicles that can be used by anyone.
• Adequate ventilation and lighting.
• Toilets must be kept clean and in working order.

For washing facilities, the requirements are:

• Hot and cold (or warm) running water.
• Soap or other cleaning agents.
• Towels or other means of drying.
• Showers where the work is particularly dirty or involves exposure to hazardous substances.

HSE guidance recommends a minimum of one toilet per seven workers. For larger sites, the ratio should be maintained. Porta-loos at a ratio of one per 15 workers are not acceptable, though this is still seen on some sites.

Drinking water

An adequate supply of wholesome drinking water must be provided. The key requirements are:

• Water must be from a mains supply or a suitable alternative (such as bottled water dispensers).
• Drinking water points must be clearly marked and must not be confused with non-potable water supplies.
• Cups or other drinking vessels must be available unless the supply is from a drinking fountain.
• Water supplies should be positioned so that workers do not have to travel unreasonable distances to reach them.

On large sites, drinking water stations should be distributed across the work areas. Workers should not have to walk more than a few minutes to access drinking water, particularly in warm weather or during physically demanding work.

Rest areas and meal facilities

Workers must have access to a rest area where they can sit down, eat, and take breaks. The facilities must include:

• Seating with back support for the number of workers likely to use the facility at one time.
• A means of boiling water (kettle or urn).
• A means of heating food (microwave or similar).
• Adequate heating, ventilation, and lighting.
• Protection from the weather and from contamination by hazardous substances.

The rest area must be separate from the work area. Workers should not have to eat their meals in a space where construction work is taking place or where they may be exposed to dust, fumes, or noise. On phased projects, the location of rest facilities may need to move as different areas of the site are developed.

A common complaint from workers is that rest facilities are too small, too far from the work area, or poorly maintained. These issues affect morale and productivity. Sites that invest in decent welfare facilities typically see better attendance and lower staff turnover.

Changing and drying rooms

Where workers need to change into or out of work clothing, suitable changing facilities must be provided. This includes:

• A private, enclosed space with adequate heating.
• Secure storage for personal clothing (lockers or hooks in an enclosed area).
• Separate facilities for men and women if they are changing at the same time.

Drying facilities are required where workers' clothing is likely to get wet. In UK construction, this is essentially every outdoor site for most of the year. Drying rooms should have adequate heating and ventilation to dry clothing between shifts. Without them, workers start each day in damp clothing, which contributes to musculoskeletal problems and illness.

HSE inspectors pay particular attention to drying facilities because their absence has a direct impact on worker health. A heated, ventilated drying room is not expensive to provide, and the cost is negligible compared to the impact of sickness absence caused by workers regularly wearing wet clothing.

Scaling facilities to workforce size

Welfare provision must be proportionate to the number of workers on site. As the project progresses and workforce numbers change, facilities need to scale accordingly. The principal contractor should review welfare provision regularly, particularly at phases where worker numbers increase significantly.

Knowing exactly how many workers are on site at any given time is fundamental to getting welfare provision right. If your site records show a peak of 80 workers but you only have facilities for 40, you have a compliance problem and a workforce that will notice.

AttendIQ's real-time attendance tracking gives you an accurate, live headcount for every site. You can see peak occupancy by day and by week, making it straightforward to plan welfare provision that matches actual workforce numbers rather than estimates. When an HSE inspector asks how you determined your welfare ratios, you can show them data rather than guesswork.