The Housing Health and Safety Rating System (HHSRS) is the method used by local authority inspectors to assess housing conditions across England and Wales. Introduced under the Housing Act 2004, it is a risk-based evaluation system — not a checklist of prescriptive standards.
When a local authority inspects your property, inspectors identify potential hazards and apply a points-based formula to score their severity. The score determines whether a hazard falls into Category 1 or Category 2, each of which carries different enforcement obligations.
Score of 1,000+ (High band). Local authority must take action. Civil penalties may apply immediately.
Score of 100–999 (Medium) or under 100 (Low). Local authority may take action at its discretion.
Following a wide-ranging government consultation, MHCLG published significant reforms to HHSRS. Regulations were laid on 1 June 2026 and came into force on 23 June 2026. These new rules apply only to inspections commenced on or after 22 June 2026 — any inspection already underway before that date is assessed under the old system.
The previous A–J lettered bands have been replaced with three clear bands: High (1,000+), Medium (100–999), and Low (under 100).
Classes I–IV have been renamed Extreme, Severe, Serious and Moderate respectively. This is a labelling change only — the underlying definitions remain the same.
The number of prescribed hazard descriptions has been reduced from 29 to 21, with several categories consolidated for clarity.
The definition of a "prescribed fire hazard" now covers uncontrolled fire and smoke/fumes, explosions, and building collapse caused by fire or explosion.
The scoring method has been simplified to a cleaner numerical system. The practical outcome for landlords remains the same — a score that determines hazard severity.
Under the updated system, there are 21 prescribed hazards, grouped into four broad categories. These apply to all inspections commenced on or after 22 June 2026. Remember: all properties contain some hazards — the aim is to minimise risk as far as reasonably practicable.
The 2019 English Housing Survey identified that just four hazard types account for 88% of all Category 1 hazards in the private rented sector. Understanding these is your most effective defence against enforcement action.
On stairs, level surfaces, and between levels — the single largest source of Category 1 hazards in the PRS.
Inadequate heating or insulation, directly linked to cold-related ill health and deaths.
Inadequate smoke detection, escape routes, or electrical and gas safety.
Structural damp, poor ventilation, or inadequate heating leading to mould growth.
Practical steps to reduce the most common Category 1 risks in your property.
- Fit handrails 90–100cm above step height along the full staircase
- Install balustrades with no gaps of 10cm or more (child safety)
- Ensure stairs are carpeted, at least 90cm wide, and well lit
- Keep floor surfaces even — trip risk rises where levels vary by 5mm+
- Fit window restrictors limiting opening to no more than 10cm
- Ensure heating can maintain 21°C throughout the property
- Install adequate thermal insulation — a higher EPC rating reduces risk significantly
- Ensure tenants can control the heating system themselves
- Address any damp or disrepair affecting thermal performance
- Check gutters and pipes regularly — blockages cause water ingress
- Investigate rising or penetrating damp as a sign of structural issues
- Ensure adequate ventilation throughout so ordinary use does not cause excess humidity
- Follow MHCLG's detailed published guidance on damp and mould
- Fit appropriate smoke and heat detection alarms throughout
- Ensure adequate escape routes — avoid routes through habitable rooms
- Carry out annual gas safety checks and regular electrical installation condition reports (EICRs)
- HMO landlords must commission a professional fire risk assessment
- Ensure furniture complies with the Furniture and Furnishings (Fire) (Safety) Regulations 1988
Inspections are carried out as a physical assessment of the whole property. The inspector records all deficiencies observed, then assesses each hazard using the following formula:
Risk (Likelihood) × Outcome = Numerical Score
The severity of each hazard is assessed against the most vulnerable age group likely to occupy the dwelling — for example, young children for stair gaps. Enforcement action, however, should reflect the actual occupants present.
HHSRS is a technical system, and reliably distinguishing between Category 1 and Category 2 hazards requires expertise. That said, landlords can still conduct their own property review.
A property that meets minimum safe-home standards is very unlikely to have a notifiable hazard. NRLA members can access a dedicated HHSRS inspection template (available for download, 1.00 MB, updated 24/06/26) to work through each hazard area systematically.
Once a hazard is identified and scored, the council's response will depend on its severity. For Category 1 hazards, local authorities have a duty to act. For Category 2, they have discretion. The hazard score does not dictate which specific enforcement tool is used.
For minor hazards, a Hazard Awareness Notice is advisory only and does not require any action from the owner — it is not registered as a land charge. Where a hazard relates specifically to a child or elderly person but no such occupants are present, the council may suspend the notice until such time as a vulnerable occupant moves in, reviewing the suspension at least annually.
One of the most significant changes introduced in 2026 is the power for local authorities to impose civil financial penalties when taking action on Category 1 hazards. These penalties apply where the authority believes it would have been reasonably practicable for the landlord to have removed the hazard.
Civil penalties of up to £7,000 can be issued at the point of first enforcement action. Critically, they apply per individual hazard — a property with multiple Category 1 hazards could face multiple simultaneous fines.
Penalties may be issued immediately, without a staged or warning-based approach. There is no guaranteed opportunity to put things right before a fine is levied.
A civil penalty can be served alongside an improvement notice or other enforcement action — not instead of it. Read your local authority's civil penalty policy to understand how they are likely to act in practice.
If an improvement notice or prohibition order is served on you, you can appeal — normally within 21 days. Appeals are heard by the First-Tier Tribunal (Property Chamber — Residential Property), which has replaced the County Court for this purpose.
The Tribunal may also mediate between councils and landlords to resolve appeals without a formal hearing where possible.
- The deficiency identified does not actually amount to a hazard under HHSRS
- A third party (not the landlord) is responsible for carrying out the required works
- The works demanded are unreasonable or excessive, and alternative remedies should be considered
If a notice is not complied with within the time allowed — usually 28 days — prosecutions for non-compliance are heard in magistrates' courts. One available defence at this stage is that the notice was incorrectly served.
Inspect your property proactively and address hazards before a local authority does.
Understand the new 2026 scoring bands and the civil penalty regime — fines can be immediate.
Read your local authority's civil penalty policy so you know how they approach Category 1 hazards.
Use the NRLA inspection checklist and seek professional advice if you are uncertain about any hazard.
A practical guide for landlords in England and Wales — understanding your responsibilities, the 2026 reforms, and what local authorities can do if hazards are found in your property.