HMO Gas Safety Requirements in London 2026: What Landlords Must Know
Houses in multiple occupation face stricter oversight than standard lets. This guide explains the specific gas safety obligations for HMO landlords in London, including what an HMO licence requires and what inspections cover.
Gas Safety in HMOs: The Core Obligation
The Gas Safety (Installation and Use) Regulations 1998 apply to houses in multiple occupation in exactly the same way as they apply to standard private lets. Every HMO landlord must ensure that all gas appliances and flues provided for use by tenants are checked annually by a Gas Safe registered engineer, that a gas safety record is produced and retained for at least two years, and that each tenant receives a copy of the current gas safety record within 28 days of it being issued.
For HMOs with multiple communal areas and individual rooms or flats, the gas safety obligation extends to all communal gas appliances — boilers, communal water heaters, and any gas appliances in communal kitchens or other shared areas — as well as any gas appliances within individual letting units. If the HMO has a central boiler heating multiple units, the annual check must include that boiler and all associated pipework and controls.
HMO Licensing and Gas Safety
London HMOs that meet the mandatory licensing threshold — five or more occupiers from two or more households — must hold an HMO licence from the relevant London borough. The licence application requires the landlord to confirm compliance with gas safety requirements and to submit current gas safety records as part of the application. Councils carry out periodic licence renewal inspections and can require production of current gas safety records at any time.
Many London boroughs have implemented additional or selective licensing schemes that extend the licensing requirement to smaller HMOs — properties with fewer than five occupiers that would not require a mandatory licence. Landlords in boroughs including Newham, Southwark, Brent, Waltham Forest, Haringey, and others should check the current licensing requirements for their specific borough, as additional licensing areas change periodically.
Shared Gas Meters and Individual Meters
HMOs in London use a variety of gas supply arrangements. Some have a single gas meter serving the entire property, with the landlord responsible for all gas costs as part of an inclusive rent arrangement. Others have individual gas meters for each letting unit, with tenants paying their own gas bills. In both arrangements, the landlord's gas safety obligation is the same: all gas appliances and flues provided by the landlord must be annually inspected, regardless of who pays the gas bills. The payment arrangement does not affect the safety inspection obligation.
Where a tenant has installed their own gas appliance — for example, a gas cooker in their own room brought from a previous address — the landlord is not responsible for the safety of that appliance, but is responsible for ensuring that the pipework connection to the appliance is safe. The landlord should not allow tenant-installed appliances to connect to the gas supply without a Gas Safe engineer checking the connection.
Gas Safety in HMO Common Areas
Many London HMOs, particularly larger Victorian and Edwardian conversions, have communal kitchens with gas hobs or ranges. These communal appliances are within the landlord's gas safety obligation and must be included on the annual gas safety record. Communal areas where gas appliances are used by multiple tenants represent a higher-risk environment than individual dwelling units, because more people are exposed to any defect. Landlords should ensure that communal gas appliances are regularly serviced and not merely inspected annually.
What Happens When a Defect Is Found
If the Gas Safe engineer finds that an appliance in an HMO is immediately dangerous, they are required to disconnect it from the gas supply and cannot leave it connected. The landlord must arrange repair or replacement before the appliance can be returned to service. For an HMO, this can mean a communal kitchen being without cooking facilities until the repair is completed. Landlords should ensure that any defects identified on previous gas safety records have been remediated before the next annual inspection, to avoid repeat failures and potential enforcement action. Prestige Engineers carry out HMO gas safety inspections and repairs across all London boroughs.