HMO Compliance Inspection N4

A House in Multiple Occupation (HMO) is a property rented to three or more tenants from more than one household who share facilities such as a kitchen or bathroom. In England, any HMO with five or more occupants forming two or more households requires a mandatory licence under the Housing Act 2004 — regardless of whether it is in N4 or elsewhere in London.

Many London boroughs also operate additional or selective licensing schemes that capture smaller HMOs — properties let to just three or four unrelated tenants. Before applying for or renewing a licence, landlords must demonstrate that all statutory safety certificates are current. Local housing authorities check this at application stage and can conduct inspections at any time during the licence period.

The mandatory conditions attached to an HMO licence require, as a minimum: a valid gas safety CP12 renewed annually; an Electrical Installation Condition Report (EICR) renewed every five years; working smoke alarms on every storey and carbon monoxide detectors in every room with a combustion appliance; and adequate means of escape from fire. Larger HMOs typically also require a fire detection system graded to British Standard 5839, emergency lighting in all communal escape routes, and annual PAT testing of all landlord-supplied appliances.

Legionella risk assessments are not always a strict licensing condition, but councils increasingly request them — particularly in larger HMOs with storage hot water cylinders or complex cold-water pipe runs where Legionella bacteria could proliferate. A written risk assessment demonstrates duty-of-care compliance under the Health and Safety at Work Act 1974 and COSHH regulations.

Councils can inspect HMOs proactively during routine licensing checks or reactively following a tenant complaint. If an Environmental Health Officer identifies a category 1 hazard — the most serious rating under the Housing Health and Safety Rating System (HHSRS) — the authority is duty-bound to take enforcement action. This can include an improvement notice, prohibition order, emergency remedial action, or prosecution.

Landlords who fail to licence an HMO that requires one face a civil penalty of up to £30,000 under the Housing and Planning Act 2016. Operating an unlicensed HMO also means the landlord cannot serve a valid Section 21 notice to end a tenancy — making possession proceedings impossible until the licence is obtained. Fines for individual certificate failures (expired CP12, missing EICR) typically start at £5,000 per offence and can be issued alongside the penalty for unlicensed operation.

Where a local authority has designated an additional licensing area — which applies in many central and inner-London boroughs — the threshold for licensing drops to three or more occupants. Property managers and letting agents who have management responsibilities for an HMO are jointly liable for licensing compliance alongside the registered owner. Agents must ensure all certificates are in place before accepting a management instruction.

Our HMO compliance inspection covers all of these requirements in a single coordinated visit. We supply a written report setting out the current status of each certificate, identify any deficiencies, and provide a fixed-price quotation to bring the property into full compliance before your next licence renewal date.