Improvement Notice
A formal notice served by the local housing authority under section 11 (Category 1 hazard) or section 12 (Category 2 hazard) of the Housing Act 2004 requiring a landlord to remedy hazards identified through the Housing Health and Safety Rating System (HHSRS). The notice specifies the works, the deadline and the route of appeal to the First-tier Tribunal. Failure to comply is a criminal offence with civil penalty up to £30,000, and triggers a 12-month Rent Repayment Order window.
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Related terms
Civil Penalty Notice
A financial penalty up to £30,000 a local housing authority can impose as an alternative to criminal prosecution under the Housing and Planning Act 2016, the Housing Act 2004 (HMO offences) and various tenancy offences. Common triggers: failure to comply with an Improvement Notice, breach of HMO licensing, unlawful eviction, breach of selective licensing or letting an unsafe property. The landlord can appeal to the First-tier Tribunal within 28 days; unpaid penalties are recoverable in the County Court.
HHSRS (Housing Health and Safety Rating System)
The risk-assessment framework used by local authorities to judge whether housing is safe. It scores 29 categories of hazard, from damp and mould to falling on stairs. Category 1 hazards are the most serious and trigger enforcement powers including Improvement Notices and Prohibition Orders.
Rent Repayment Order (RRO)
A First-tier Tribunal order requiring a landlord to repay up to 12 months’ rent (24 months under the Renters Rights Act 2025 for some offences) for specified housing offences: unlicensed HMO, breach of selective licensing, illegal eviction, harassment, failure to comply with an Improvement Notice or Banning Order. Sought by the tenant or, separately, by the local council. Triggered without needing a criminal conviction — the tribunal applies the criminal standard of proof to the underlying offence, then orders repayment.
Additional Licensing
A discretionary HMO licensing scheme a council can introduce under section 56 of the Housing Act 2004 to cover smaller HMOs that fall below the mandatory five-person, three-storey threshold. It is separate from selective licensing (which covers all rented homes in a designated area, not just HMOs). Operating an unlicensed HMO where additional licensing applies is a criminal offence with civil penalties up to £30,000 and exposure to a Rent Repayment Order of up to 24 months’ rent.
Article 4 Direction
A planning tool councils use under article 4 of the Town and Country Planning (General Permitted Development) Order 2015 to remove permitted-development rights, most commonly the right to convert a single-family home (Use Class C3) into a small HMO (Use Class C4) without planning permission. In an Article 4 area, every C3 → C4 conversion needs a full planning application, and operating without it can trigger an enforcement notice, a planning contravention notice or a refusal of HMO licence.
Awaab's Law
Provisions extending to the private rented sector under the Renters Rights Act 2025 that set strict timescales for landlords to investigate and remedy hazards such as damp and mould. Named after Awaab Ishak. Breach can lead to tenant compensation and enforcement by the local housing authority.