Quick Answers
Does the Decent Homes Standard now apply to private landlords?
Yes. The Renters' Rights Act extended the standard to all assured periodic tenancies in the private rented sector. Every private landlord in England must now ensure their rented properties meet the four Decent Homes criteria: no Category 1 HHSRS hazards, reasonable state of repair, reasonably modern facilities, and a reasonable degree of thermal comfort.
What happens if a property fails the standard?
The local housing authority can serve an improvement notice requiring specific remediation within a set deadline. Failure to comply can result in a civil penalty of up to £30,000 or prosecution. The council can also carry out the works itself and recover the cost from the landlord. The Decent Homes Standard works alongside the existing HHSRS enforcement powers, not instead of them.
What is the biggest risk for landlords with older properties?
Category 1 hazards under HHSRS — particularly excess cold, damp and mould, and falls hazards — are the most common failure point in older stock. A property with any unresolved Category 1 hazard fails the Decent Homes Standard. Older properties that have never been formally assessed against HHSRS should be reviewed before councils begin systematic enforcement.
The standard in plain English: a property must be safe (no serious hazards), in reasonable repair for its age and type, have facilities that are not seriously outdated, and be warm enough to heat cost-effectively. These four criteria have applied to social housing for 25 years. They are now being extended across all private tenancies.
The honest risk assessment: for landlords with well-managed, reasonably modern properties, this change creates minimal new exposure. For landlords with Victorian terraces, pre-war converted flats, or properties that have received minimal maintenance over many years, the Decent Homes Standard creates a formal framework for the enforcement action that HHSRS powers have long permitted but councils have not always used consistently. The new Private Rented Sector Database — the landlord register — will give councils better intelligence about their portfolio and make systematic enforcement more feasible.
Key Takeaways
This is an extension of a well-established standard, not an entirely new one
The Decent Homes Standard was developed for social housing in 2001 and updated in 2006. Social housing providers have been working to it for 25 years. The extension to the private rented sector means private landlords must now meet the same basic minimum standard that housing associations and councils have been held to for a generation. The criteria are not new. The application to private landlords is.
The Category 1 hazard criterion is the most immediately actionable
Of the four Decent Homes criteria, the requirement to be free from Category 1 hazards under HHSRS is the one most likely to generate enforcement action. Category 1 hazards are already enforceable by councils under the Housing Act 2004 regardless of the Decent Homes Standard. The extension of the standard makes the link between a hazard assessment and a formal property condition standard explicit, and strengthens the council's legal position when issuing improvement notices.
Damp and mould is the most common Category 1 hazard in the PRS
Excess cold and damp and mould growth are consistently the most frequently assessed Category 1 hazards in private rented properties. Following the Homes (Fitness for Human Habitation) Act 2018 and the government's Awaab's Law provisions (originally for social housing, now extending to the PRS), mould is an area of acute regulatory focus. Landlords who dismiss tenant reports of mould as a lifestyle issue are not only potentially wrong about the cause — they are carrying significant enforcement exposure.
Awaab's Law response timescales now apply to the PRS
Awaab's Law, which requires landlords to investigate and fix reported damp and mould within prescribed timescales, was originally introduced for social housing. The Renters' Rights Act extended these response obligations to the private rented sector. Where a tenant reports damp or mould, the landlord must investigate within 14 days and begin a fix within a further period (timescales confirmed in secondary legislation). Failure to respond within the prescribed periods is itself an enforceable breach, separate from whether the property meets the Decent Homes Standard.
The reasonable state of repair criterion is age-adjusted
The second Decent Homes criterion requires the property to be in a reasonable state of repair, but this assessment takes account of the age and character of the property. A 1900 Victorian terrace cannot be expected to meet the same condition standard as a 2010 apartment. What is assessed is whether the property has been appropriately maintained for its age and type, and whether significant building elements (roof, windows, external walls, plumbing, heating) are in reasonable working order for a property of that age.
The Private Rented Sector Database changes the enforcement landscape
The Renters' Rights Act introduced a mandatory PRS Database (landlord register) that all private landlords in England must register with. This gives local housing authorities systematic data about rental properties in their area for the first time. Previously, councils only knew about properties when they received a complaint. The database enables proactive, risk-based enforcement. Landlords who assume that enforcement is unlikely unless a tenant complains are working with an outdated assumption about how local authorities will operate in 2026 and beyond.
What the Decent Homes Standard Requires
The Decent Homes Standard defines a minimum acceptable condition for all rented housing. A property meets the standard when it satisfies all four criteria simultaneously. Failing any single criterion makes the property non-decent, regardless of how well it performs on the others.
The four criteria were designed for social housing and have been adapted for application to the private rented sector. The adaptation recognises that private rented properties vary more widely in age, type, and character than social housing stock, and assessment must reflect that diversity. A property that would be considered non-decent if it were social housing may meet the PRS standard if the apparent shortfall is appropriate to its age and type.
The Four Criteria in Detail
Free from Category 1 HHSRS hazards
The property must not contain any Category 1 hazard as assessed under the Housing Health and Safety Rating System (HHSRS). Category 1 hazards are those judged to pose a serious risk to health or safety. There are 29 HHSRS hazard categories.
This is the most commonly enforced criterion. The presence of even one unresolved Category 1 hazard causes the property to fail the Decent Homes Standard, regardless of how good the property is on every other measure.
In a reasonable state of repair
Key building elements must not be in a state of serious disrepair or require replacement. A building element (such as the roof, windows, walls, or plumbing) fails this criterion if it is old enough to be considered beyond its expected lifespan and its condition is poor.
The assessment is age-adjusted: a 100-year-old window that is functioning reasonably well is in a different position from a 5-year-old window in the same condition. The question is whether maintenance appropriate to the property's age and type has been carried out.
Reasonably modern facilities and services
Key facilities and services must not be seriously outdated. This criterion assesses: the kitchen (age, condition, adequate space), the bathroom (age, condition, having both bath or shower and a wash hand basin), the WC (not shared with another household), and the electrical and gas installation.
A kitchen that is 30 or more years old with poor layout may fail this criterion. The assessment is not whether the kitchen is desirable but whether it provides a basic functional standard appropriate for habitation.
A reasonable degree of thermal comfort
The property must have both an efficient heating system and effective insulation that together provide a reasonable degree of thermal comfort for occupants. This aligns with the Minimum Energy Efficiency Standards requirements.
A property with a very old, inefficient boiler, inadequate or absent insulation, or single-glazed windows in a cold climate may fail this criterion. The EPC rating is an indicator but is not the sole determinant: the practical ability to heat the property to a habitable temperature cost-effectively is what is assessed.
HHSRS: The Hazard Assessment Framework
The Housing Health and Safety Rating System is the assessment tool that underpins the most commonly enforced element of the Decent Homes Standard. It was introduced by the Housing Act 2004 and provides a structured methodology for assessing residential housing hazards.
HHSRS identifies 29 categories of hazard and assesses each by reference to the likelihood of an occurrence that could harm an occupant and the probable severity of the harm. Hazards scoring above a defined threshold are classified as Category 1 (the most serious) or Category 2 (less serious). Category 1 hazards give councils a duty to take enforcement action; Category 2 hazards give councils a power to do so.
| Hazard category | What It Covers and Where It Arises Most Often |
|---|---|
| Damp and mould growth | Excess moisture leading to mould growth, particularly in bathrooms, kitchens, and poorly ventilated rooms. The most commonly reported hazard in PRS stock, particularly in older converted buildings with poor ventilation. Linked to respiratory illness and other health impacts. Following Awaab Ishak's death in 2020 and subsequent legislative changes, councils face pressure to treat this as a priority rather than a low-level issue. |
| Excess cold | Inability to heat the property to an adequate temperature, typically linked to inadequate insulation, a failing heating system, or a very old boiler. The excess cold hazard is assessed using the SAP methodology and considers the efficiency of the heating system and the thermal envelope of the building. One of the most common Category 1 hazards in pre-1940 housing stock. |
| Falls on stairs and steps | Inadequate handrails, steep stair pitch, uneven steps, or poor lighting on stairways. Particularly prevalent in older converted houses with original staircase configurations that would not meet modern building regulations. One of the leading causes of serious injury in domestic premises. |
| Fire | Risk of fire arising from the property's construction, layout, or inadequate fire safety measures. Includes risk from electrical installations, absence of smoke alarms, and inadequate means of escape. Councils assess this hazard alongside the fire risk requirements that apply independently under fire safety legislation. |
| Electrical hazards | Risk of shock or fire from the electrical installation. An EICR (Electrical Installation Condition Report) that identifies Class C1 (danger present) deficiencies will almost certainly generate a Category 1 hazard assessment. Landlords are required to have a valid EICR regardless of the Decent Homes Standard, but a failing EICR now feeds directly into DHS non-compliance. |
| Structural collapse and falling elements | Risk of harm from collapse of building elements — ceilings, walls, chimneys, or other structural components that have deteriorated to the point of presenting a risk. This hazard often overlaps with the reasonable state of repair criterion: a building element in such poor condition that it presents a collapse risk simultaneously fails both criteria. |
Category 1 hazards have been enforceable by councils under the Housing Act 2004 since 2006, long before the Decent Homes Standard was extended to the PRS. The extension does not create new enforcement powers in relation to hazards — it creates a formal standard against which the overall condition of the property can be measured, and it strengthens the council's basis for taking action when multiple issues are present. Landlords who have been managing Category 1 hazards on a "wait for a complaint" basis have always been exposed to enforcement. The Decent Homes Standard makes that exposure more systematic.
How Enforcement Works
Trigger: complaint, proactive inspection, or database intelligence
Enforcement begins when the local housing authority becomes aware of a potential Decent Homes failure. This can happen through a tenant complaint, a referral from another agency (such as social services or the Fire and Rescue Service), a proactive inspection programme, or increasingly through intelligence from the PRS Database. From 2026 onwards, councils have access to registration data about all private rented properties in their area, which enables risk-based targeting of older or repeatedly complained-about stock.
Inspection and hazard assessment
A council housing officer inspects the property and carries out an HHSRS assessment. This involves rating each applicable hazard category by likelihood and severity, producing a numerical score. Hazards scoring above the Category 1 threshold must be recorded as Category 1. The officer also assesses the property against the other three Decent Homes criteria: state of repair, facilities, and thermal comfort. The inspection produces a written report that is the basis for any enforcement action.
Improvement notice or hazard awareness notice
Where a Category 1 hazard is identified, the council has a duty to take enforcement action. The most common formal action is an improvement notice requiring the landlord to carry out specified works within a defined period (at least 28 days, typically longer for substantial works). The notice specifies what works must be done, by when, and the consequences of non-compliance. A hazard awareness notice can also be served for Category 2 hazards or in circumstances where formal enforcement is not yet proportionate.
Penalty, prosecution, or remedial action by the council
Where a landlord fails to comply with an improvement notice, the council can issue a civil penalty of up to £30,000 per notice (or prosecute, which carries an unlimited fine), carry out the works themselves and recover the cost from the landlord as a charge on the property, or apply for a management order taking over management of the property. The severity of the enforcement response typically escalates with the landlord's history of non-compliance and the severity of the hazard.
Rent repayment orders where relevant offences are committed
Where a landlord's failure to comply with an improvement notice meets the threshold for a rent repayment order application (an offence under the Renters' Rights Act's RRO-triggering list), a tenant can apply to the First-tier Tribunal for recovery of up to 12 months' rent. The combination of a civil penalty and an RRO application is a significant financial exposure and is the likely outcome for landlords who receive improvement notices and fail to act on them.
Older Stock: The Highest Risk Properties
The Decent Homes Standard creates the most significant compliance exposure for landlords with older, less well-maintained properties. In East London and inner Essex, this primarily means:
- Victorian and Edwardian terraces converted to flats where the original single-glazed windows remain, ventilation is poor, heating is inadequate or inefficient, and damp penetration is a recurring issue through the original solid-wall construction.
- Post-war purpose-built blocks where communal heating systems have aged past their designed lifespan, insulation has not been upgraded, and lift and communal area conditions may have deteriorated.
- Older converted properties with original electrical installations that have not been updated since the 1970s or earlier and would fail an EICR inspection.
- Properties with structural movement that has led to sticking doors, cracked plaster, or compromised window frames without being addressed.
Landlords of older stock who have been managing issues reactively — fixing what tenants complain about and deferring everything else — need to approach the Decent Homes Standard extension with a more systematic assessment. A property that has multiple borderline issues may fail the standard even where no single issue is dramatically obvious.
What Landlords Should Do Now
The Decent Homes Standard is in force. The PRS Database registration requirement is being rolled out. The combination means that councils will have both the legal basis and the property intelligence to enforce systematically. Waiting for a complaint is not a strategy.
For landlords managing their own properties or overseeing a managing agent, the practical steps are:
- Assess each property against the four criteria. Does it have any known damp issues, heating failures, or hazardous stairways? When was the kitchen last updated? When was the last EICR? Is the boiler efficient enough to heat the property adequately in a cold winter? These are not difficult questions for a landlord who knows their properties, but they need to be asked systematically rather than assumed away.
- Respond promptly to damp and mould reports. Under Awaab's Law provisions now applying to the PRS, a failure to investigate within 14 days of a report is itself a breach. Do not dismiss mould reports as condensation without investigation. Instruct a damp specialist to confirm the cause before responding to the tenant.
- Commission an EICR and gas safety check if these are overdue. EICR must be completed at least every five years and before a new tenancy. Gas safety every year. A failing EICR that reveals Category 1 electrical hazards is the kind of documented evidence that makes enforcement straightforward for the council.
- Register with the PRS Database when required. The landlord registration system is being rolled out under the Renters' Rights Act. Non-registered landlords face penalties and cannot serve valid Section 8 notices in some circumstances. Completing registration also puts the landlord in the best position to engage with council enforcement inquiries from a position of compliance rather than non-compliance.
For the full picture of Renters' Rights Act compliance obligations, see Periodic Tenancies After the Renters' Rights Act. For how Rent Repayment Orders interact with Decent Homes Standard failures, see the forthcoming post on Rent Repayment Orders in 2026. For deposit protection compliance which also affects Section 8 notice validity, see Deposit Protection After the Renters' Rights Act.
Frequently Asked Questions
A set of four minimum property condition requirements extended to all private assured periodic tenancies by the Renters' Rights Act: free from Category 1 HHSRS hazards, in a reasonable state of repair, having reasonably modern facilities and services, and providing a reasonable degree of thermal comfort. Previously only social housing had to meet the standard. All four criteria must be satisfied simultaneously.
The Housing Health and Safety Rating System identifies 29 hazard categories in residential housing. Category 1 hazards are those assessed as posing a serious risk — the most common in private rented properties being excess cold, damp and mould growth, electrical hazards, and falls on stairs. A property with any unresolved Category 1 hazard fails the Decent Homes Standard and gives the council a duty (not just a power) to take enforcement action.
Through the Housing Act 2004 framework: inspecting properties, serving improvement notices, and pursuing civil penalties of up to £30,000 or prosecution where landlords fail to comply. Councils can also carry out remedial works themselves and recover the cost from the landlord. The PRS Database (landlord register) now gives councils systematic property intelligence that enables proactive, risk-based enforcement rather than complaint-driven investigation only.
Yes — all assured periodic tenancies in the private rented sector, which since 1 May 2026 covers all private tenancies in England. There are no exemptions based on property age, size, or rental level. The assessment of what constitutes reasonable repair or reasonably modern facilities takes account of the age and character of the property, but the obligation applies universally.
An efficient heating system combined with effective insulation that together provide a reasonable degree of thermal comfort. This aligns with the Minimum Energy Efficiency Standards requirement for an EPC rating of at least E. Properties with a very old, inefficient boiler, inadequate insulation, or single-glazed windows in poorly insulated walls may fail this criterion even where a heating system technically exists. The practical ability to heat the property to a comfortable temperature cost-effectively is the underlying measure.
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