Waste, Rubbish and Fire Risk in Accommodation Blocks and Commercial Premises
Waste rarely feels like a fire safety issue until it suddenly is. Cardboard boxes stacked near bin stores. Overflowing wheelie bins waiting for collection. Packaging from deliveries left beside loading bays or rear exits because there is nowhere else to put it. These scenes are familiar across accommodation blocks, HMOs, restaurants, shops, and mixed-use buildings, and they tend to blend into the background of daily operations.
Over time, waste changes the character of a space. It introduces combustible material, restricts access, and gradually alters the way a fire would behave if one were to start. This shift is often incremental and unnoticed, particularly in external areas that sit just outside the main building footprint. Yet it is in these overlooked spaces that fires involving waste most often begin.
Fire and rescue services across the UK attend thousands of fires each year involving waste paper, cardboard, and general rubbish. Many are dealt with quickly. Others escalate, drawing in multiple appliances and causing disruption far beyond the original pile of refuse. What they share is a common theme: the materials involved are everyday, familiar, and entirely preventable as a fire hazard when managed with reasonable care.
A growing pressure on waste management
In recent years, the way waste is managed across residential and commercial buildings has changed in ways that have increased the fire risk without anyone necessarily making a conscious decision to do so. Council collections have become less frequent in many areas, particularly for residential accommodation blocks and HMOs. At the same time, the cost of commercial waste collection has increased for businesses such as restaurants, cafés, and retailers. The result is straightforward: waste remains on site for longer.
Where accommodation blocks house large numbers of people, or where buildings combine residential and commercial use, this delay leads to bin stores and external waste areas filling beyond their intended capacity. Cardboard packaging from online deliveries builds up between collections. Food waste is stored alongside combustible materials. Discarded consumer items such as vapes and batteries find their way into general refuse. None of this feels significant in isolation, but taken together it creates a fire risk profile that many responsible persons have not formally assessed.
How waste fires develop
Waste fires rarely begin with a dramatic ignition source. More often they start with something small — a carelessly discarded cigarette, a battery damaged under the weight of other waste, a hot item placed into a bin without thought. Once ignition occurs, the density and composition of the waste determines how the fire develops.
Cardboard and packaging burn readily and produce large volumes of smoke. Plastics add heat and toxic by-products. When waste is piled closely together, heat builds rapidly and suppression becomes more difficult. In enclosed or partially enclosed bin stores, smoke can spread towards the building and compromise escape routes before anyone realises what is happening. The video below shows a waste fire in Leatherhead attended by Surrey Fire and Rescue Service, and illustrates how quickly discarded material can develop into a sustained incident requiring considerable resources to control. This type of incident is not confined to recycling centres or industrial sites — similar fires occur in bin compounds serving accommodation blocks, behind restaurants and hospitality venues, and in shared service yards where waste accumulates out of sight.
Surrey Fire and Rescue Service attend a significant waste fire in Leatherhead. Shared for safety awareness — inclusion does not imply endorsement.
Where responsibility sits — and where it gets lost
One of the most common misunderstandings we encounter is the belief that fire safety responsibilities stop at the front door. Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person is required to address any risk in or around the premises that could affect the safety of occupants or their ability to evacuate. If a fire in an external waste area could reach the building, affect a means of escape, or produce smoke that enters the building, it falls within the scope of the fire risk assessment — regardless of whether it starts inside or outside the building envelope.
This is particularly relevant for accommodation blocks and HMOs where bin stores are often located close to entrances, stair cores, or plant rooms. A fire in these areas can threaten the safety of residents and significantly complicate evacuation. It is also relevant for commercial premises where waste accumulates in loading bays, service corridors, or external areas adjacent to the building's means of escape.
Responsibility for waste areas can also become unclear in buildings with multiple parties involved in management. Managing agents may assume that residents manage waste properly within their areas. Residents may assume the managing agent is responsible for communal bin areas. Commercial tenants in a mixed-use building may assume the landlord's arrangements cover their waste streams. Over time, these assumptions create gaps — and gaps in waste management are precisely where fire risk develops.
The arson dimension: waste stored in unsecured areas adjacent to buildings is one of the most consistent risk factors for arson. An accessible pile of combustible material immediately outside a building represents an easy target for deliberate ignition, and the consequences can be severe if the building's construction or proximity means a fire in the waste area can reach the facade, windows, or a means of escape. This is an area where simple physical measures — moving waste storage away from the building, securing bin store access, ensuring external lighting — deliver a meaningful reduction in risk at low cost.
What tends to be overlooked in fire risk assessments
Waste management is frequently treated as an operational or environmental matter rather than a fire safety one, and as a result it tends to receive less scrutiny in fire risk assessments than the equivalent hazard inside the building would attract. There is a tendency to focus on internal fire precautions while external areas are noted briefly and left without detailed consideration of how they are actually used day to day.
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1Bin store location and proximity
Bin stores that were originally positioned at a safe distance from the building may have effectively moved closer as the building's layout has changed, as new escape routes have been designated, or as additional structures have been added nearby. The distance between a waste store and the nearest window, door, or means of escape is a material fire safety consideration, and one that should be revisited periodically rather than assumed to be as it was when the building was first assessed.
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2Hazardous items in general waste
Lithium-ion batteries — from phones, vapes, power tools, and small consumer devices — are increasingly finding their way into general household and commercial waste rather than being disposed of through appropriate channels. A battery that has been damaged or is in a degraded state can enter thermal runaway when subjected to the compression and heat of a densely packed bin, and the resulting fire is far more difficult to extinguish than a conventional waste fire. Clear guidance to occupants and staff on the disposal of batteries and electronic devices, alongside a designated collection point for such items, is a proportionate and practical control.
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3Accumulation between collections
Collection schedules that were set when a building had fewer occupants, or before online shopping significantly increased the volume of cardboard packaging, may no longer reflect the actual rate at which waste accumulates. Where bin stores are routinely full several days before the scheduled collection, the arrangement needs review — either through more frequent collection or through additional storage capacity that keeps overflow material away from the building.
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4Waste in communal internal spaces
In HMOs and some managed blocks, waste items left in communal corridors, stairwells, or entrance halls represent a direct threat to means of escape, both as a fuel source if a fire reaches them and as a physical obstruction to evacuation. This is an area where the fire door and escape route inspection programme should include waste accumulation as a specific check, rather than treating it as a housekeeping issue to be raised separately.
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5Commercial waste in mixed-use buildings
Buildings that combine residential and commercial occupancy — ground-floor restaurants or retailers beneath flats, for instance — often have waste streams from the commercial tenants that are significantly larger and more varied in composition than the residential waste. Commercial kitchen waste, cardboard from stock deliveries, and cleaning and chemical products all introduce hazards that the building's waste management arrangements may not have been designed to accommodate, and that the residential occupants above are relying on being controlled.
Proportionate and practical controls
Managing waste-related fire risk does not usually require complex or expensive solutions. It starts with visibility and ownership — regular inspection of bin stores and waste areas by someone with a clear responsibility to act on what they find, supported by arrangements that reflect how the building actually operates rather than how it was originally designed to operate.
Practical measures tend to be straightforward: collection schedules that reflect actual usage; clear separation of hazardous items such as batteries, aerosols, and clinical waste from general refuse; bin stores positioned and constructed so that a fire within them cannot readily reach the building; and access controls that reduce the opportunity for opportunistic ignition by reducing the accessibility of waste areas to unauthorised persons. For warehouses and industrial premises where combustible waste volumes can be substantial, more formal arrangements around waste segregation, storage limits, and collection frequency are likely to be warranted and should be addressed specifically in the fire risk assessment.
Crucially, external waste areas should be considered as part of the fire risk assessment in their own right, with the same rigour applied to understanding how a fire might start, how it would develop, and what it could affect. Where staff training addresses fire safety, the correct handling and disposal of waste — and in particular the identification and separate disposal of lithium-ion batteries — is worth including as a specific topic rather than assuming it is covered by general housekeeping guidance.
Fletcher Risk has supported managing agents, landlords, and businesses across Chester, the Wirral, Cheshire, North Wales, and the wider North West in reviewing waste and bin areas as part of wider fire risk assessments for accommodation blocks, hospitality venues, commercial premises, and mixed-use sites. In many cases, small changes to layout, management arrangements, or waste handling practices have significantly reduced risk without the need for major investment. If waste management has become a background issue on your site, a fresh look is often straightforward. Please get in touch.
Review your waste management fire risk
We carry out fire risk assessments for residential and commercial buildings across Chester, the Wirral, Cheshire, North Wales, and the wider North West, including detailed assessment of external waste areas and bin stores.
This article is provided for general information only and does not constitute legal advice. Fire safety duties and appropriate control measures depend on the specific premises, occupancy, waste streams, management arrangements, and findings of a suitable and sufficient fire risk assessment. Fletcher Risk Management Ltd accepts no liability for decisions made on the basis of this content. If you require advice on your specific circumstances, you should seek competent professional support.