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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 £40,000, and triggers a Rent Repayment Order of up to two years’ rent.

Reviewed by Erdem VolkanLast reviewed 16 September 2026How we check facts

Issued under
Housing Act 2004, following an HHSRS assessment
Triggered by
A Category 1 hazard (or a serious Category 2)
If ignored
The council can do the works and recover the cost
Knock-on risk
Letting in breach can expose you to a Rent Repayment Order

Why it matters

What Improvement Notice means for a landlord

An improvement notice is the point at which a repair problem stops being a private matter between you and the tenant. It follows a council HHSRS inspection, usually prompted by a tenant complaint, and it sets out works and a deadline. The cost of the works is rarely the real exposure: continuing to let in breach of the notice is an offence that can trigger a Rent Repayment Order of up to two years’ rent, and it appears on your record for any future licensing or banning-order decision. Engaging early and completing the works genuinely reduces what follows, because cooperation is a scoring factor in every council’s enforcement policy.

Worked example

How it plays out

After a tenant in Stockport complains of damp and a broken extractor fan, the council inspects and finds a serious damp and mould hazard. It serves an improvement notice requiring the fan and a leaking gutter to be repaired within a set time. The landlord arranges both within two weeks and sends the council photos and invoices. If he had ignored it, the council could have done the work and recovered the cost, and he would have committed an offence.
An illustrative example. Names, places and figures are made up.

Common mistakes

Where landlords go wrong

  1. 01Missing the 21-day window to appeal if you disagree with the notice.
  2. 02Doing part of the work and assuming that is enough.
  3. 03Letting the deadline pass because access is difficult, without telling the council.

What to do

A short checklist

  • Read the work required and the deadline the day the notice arrives.
  • Appeal to the First-tier Tribunal within 21 days if the notice is wrong.
  • Send the council evidence of the finished work.

Sources

Checked against these sources on 16 September 2026. A guide to the rules in England, not legal advice: for a dispute or a possession claim, speak to a solicitor.