Reporting an Infestation to the Council in London: What Happens When a Landlord Will Not Act
A London council can inspect a rented property, rate the infestation as a housing hazard and serve a legal notice compelling the landlord to carry out the work. Reporting an infestation to the council in London is the enforcement route when the responsible party refuses to act, and three separate powers give councils the means to force it.
What can a council do if a landlord will not deal with an infestation?
A council has three legal routes, and it can use any of them without the landlord's agreement. It can assess the property against the Housing Health and Safety Rating System and serve an improvement notice. It can treat an infestation escaping the premises as a statutory nuisance and serve an abatement notice. It can also act specifically on rats and mice, requiring an owner or occupier to treat and proof the property.
All three routes end in the same place: a written notice naming the works, a deadline, and an offence for non-compliance. Where a notice is ignored, a council can prosecute, and in most cases carry out the works itself and recover the cost from the person served. Environmental health is the team that handles all of this.
How does the Housing Health and Safety Rating System work?
The Housing Health and Safety Rating System (HHSRS) is the risk assessment method a council uses to score hazards in a home, and domestic hygiene, pests and refuse is one of the rated hazards. An environmental health officer inspects the property, scores the hazard, then bands it as category 1 or category 2. A council has a duty to take enforcement action on a category 1 hazard, and a power rather than a duty on a category 2 hazard, so action there is discretionary.
To trigger an inspection, a tenant contacts the council for the borough the property sits in and asks for environmental health or private sector housing. The council will want the address, the tenure, the landlord or agent's details, the date the problem was first reported, and what has happened since. Most London boroughs write to the landlord before booking an inspection, and the officer's own report of what was found is the document the notice is later built on.
What is a statutory nuisance, and when do pests count?
Premises in such a state as to be prejudicial to health or a nuisance can be a statutory nuisance, and an infestation can qualify. "Prejudicial to health" means injurious, or likely to cause injury, to health. Once a council is satisfied that a statutory nuisance exists or is likely to recur, it must serve an abatement notice on the person responsible, and failing to comply with that notice without reasonable excuse is a criminal offence.
The statutory nuisance route matters most when an infestation is spilling in from somewhere the tenant's own landlord does not control: a hoarded flat next door, a neglected garden, a shared bin store, or vacant land behind the building. The person responsible is whoever the nuisance is attributable to, or the owner or occupier of the premises it comes from, so a tenant can report a source outside their own home.
What has to be reported when there are rats or mice?
The owner or occupier of land must notify the local authority in writing where rats or mice are present in substantial numbers. The local authority in turn has a duty to keep its own land free of rats and mice, and power to require an owner or occupier to carry out treatment or structural proofing work. Non-compliance is an offence, and the council can do the work and charge for it.
This is the rodent-specific route, and the one most tenants have never heard of. No figure defines "substantial numbers", so a council works from evidence: repeated sightings, droppings, gnawed packaging, noise in voids, or entry points a professional has identified. A written record of each of those is what moves a report from a complaint to a case.
Which route fits which situation?
| Situation | Relevant power | Who enforces it | What the notice can require |
|---|---|---|---|
| Rented home, landlord refuses to treat | Improvement notice, after an HHSRS assessment | Local housing authority (environmental health) | Named remedial works, including proofing, within a stated period |
| Infestation entering from a neighbouring property or vacant land | Abatement notice for a statutory nuisance | Local authority (environmental protection) | Abate the nuisance, prohibit recurrence, execute stated works |
| Rats or mice in substantial numbers | Notice requiring rodent treatment and proofing | Local authority | Treatment, plus structural work to exclude rodents |
| Licensed house in multiple occupation (HMO) | HMO licence conditions | Local housing authority (licensing) | Compliance with licence conditions; the licence can be reviewed |
| Council land, parks and estate grounds | Duty to keep its own land rodent-free | The council itself | Keeping its own land free of rats and mice |
What does a tenant need to provide?
A council decides how fast to move on the strength of the paperwork, so a tenant reporting an infestation to the council in London should arrive with five things:
- Dates of every report — when the infestation was first noticed, when the landlord was told, and every follow-up since, as calendar dates rather than "a few weeks ago".
- Written correspondence — emails, letters, texts and letting agent portal messages, including the ones that went unanswered.
- Photographs and short videos — droppings, gnaw damage, entry points, bites, live sightings, and the state of any communal area or bin store, each dated.
- Treatment records — invoices, reports and technician notes from any pest control visit, whether the landlord arranged it or the tenant paid. 247 Pest Control publishes a pest inspection from £62 as a starting point for a straightforward domestic property, and a written inspection report is independent evidence an environmental health officer can act on.
- Evidence of the effect on the household — rooms that cannot be used, food thrown away, disturbed sleep, and any GP record if someone's health has suffered.
What are the limits of council enforcement?
Council enforcement is real, but it is not fast and it is not a same-week fix. London environmental health teams carry heavy caseloads, and the time from first report to inspection to a served notice is usually measured in weeks rather than days. A council will normally expect a tenant to have reported the problem to the landlord in writing first, and a report that arrives without that written trail tends to be sent back for it. That timescale is why many tenants run the two tracks together: private treatment can usually be turned round in days rather than weeks, and the council file keeps building while the flat is actually being dealt with.
A notice also only compels the person served. Where an infestation runs through a whole block, a council can require works at a single flat far more easily than it can compel a freeholder to treat and proof an entire building quickly. A council cannot serve an improvement notice on itself either, so a council tenant uses the landlord's complaints procedure, then the Housing Ombudsman Service.
Where else can a tenant go?
The first port of call is the environmental health team at the council for the borough the property sits in, and it is worth asking whether that borough also runs a pest control service for residents, because several London boroughs do, usually charged. Citizens Advice gives free guidance on rented-home conditions and can help word a formal complaint.
For serious or long-running disrepair, a housing solicitor can advise on a claim, and many take housing conditions work on legal aid or a conditional fee agreement. Private contractors work alongside the council routes rather than replacing them: 247 Pest Control states that same-day attendance is available across London and that it responds to emergency enquiries 24/7, while noting that attendance time cannot be identical for every call. The survey settles three things: which pest it is, which treatment suits the property, and the soonest the work can be scheduled.
Frequently asked questions
How long does a council take to act on a reported infestation?
There is no fixed deadline for a council to inspect, so timescales vary by borough and caseload, usually weeks rather than days. Once a hazard is assessed as category 1, the council has a duty to take enforcement action, and the improvement notice itself specifies a start date and a completion period for the works.
Can a council fine a landlord who ignores a notice?
Yes. Failing to comply with an improvement notice is an offence, and a council can prosecute or impose a financial penalty instead. Ignoring an abatement notice without reasonable excuse is also an offence. In both cases the council can carry out the works itself and recover its costs from the person who was served.
Does a tenant have to report rats to the council?
Yes, where the numbers are substantial. The owner or occupier of land must notify the local authority in writing where rats or mice are present in substantial numbers, and an occupier includes a tenant in occupation. Reporting rodents is therefore a step the law expects, not an escalation a tenant must justify.
Will the council treat the infestation itself?
Sometimes. Several London boroughs run their own pest control service for residents, usually charged per treatment. That service is separate from enforcement: booking a council treatment does not open an environmental health case, so a tenant who wants the landlord compelled to act should report the problem to environmental health as well.
Can a tenant report an infestation coming from a neighbouring property?
Yes. Premises in such a state as to be prejudicial to health or a nuisance can be a statutory nuisance, and the council can then serve an abatement notice on the person responsible. That person may be a neighbour, a freeholder, a managing agent or a landowner, and the tenant does not need to identify them first.