The Renters' Rights Act 2025 represents the most significant change to private rental law in a generation. Royal Assent on 27 October 2025 confirmed what landlords had anticipated for years: the end of Section 21 no fault evictions and a fundamental shift in the balance between landlord and tenant rights.
For landlords with damp issues in their properties, this shift has immediate practical consequences. The ability to remove tenants who complain has ended. The regulatory framework for enforcement is strengthening. The financial penalties for non-compliance are increasing. And the extension of Awaab's Law principles to the private sector, while not yet in force, is on the horizon.
This guide explains what the Renters' Rights Act means for London landlords dealing with damp and mould, what compliance requires now, what is coming in future phases, and how to position your portfolio for a regulatory environment that will be significantly less forgiving of substandard property conditions.
Table of Contents
- The Renters' Rights Act: What Has Changed
- The End of Section 21: Why Damp Matters More Now
- The Decent Homes Standard: What Is Coming
- Awaab's Law Extension: Timeframes for Private Landlords
- The New Ombudsman: Another Layer of Accountability
- Enhanced Enforcement Powers for Councils
- Rent Repayment Orders: The Financial Exposure
- What Constitutes Compliance Today
- Preparing for Future Requirements
- The Investigation and Response Protocol
- Documentation That Protects You
- When to Commission Professional Assessment
- FAQs
- Conclusion
1. The Renters' Rights Act: What Has Changed
Understanding the full scope of the Renters' Rights Act helps landlords appreciate why damp compliance matters more than ever.
The Core Changes
The Renters' Rights Act 2025 abolishes Section 21 of the Housing Act 1988, ending no fault evictions. From 1 May 2026, landlords can only recover possession using Section 8 grounds, which require demonstrating specific reasons such as rent arrears, breach of tenancy terms, or the landlord needing to sell or occupy the property.
All assured shorthold tenancies convert to periodic tenancies on 1 May 2026. New tenancies from that date will be periodic from the start, rolling month to month indefinitely. Tenants can leave with two months' notice at any time. Landlords cannot end tenancies simply because they want to, only for specified reasons.
The Act introduces a 12 month protected period at the start of each tenancy. During this period, landlords cannot use the sale or moving in grounds for possession. This gives tenants security to settle without immediate eviction risk.
Damp Specific Provisions
While the headline changes concern eviction rights, the Act contains provisions specifically relevant to damp and property condition.
The Act provides the framework for extending Awaab's Law to the private rented sector. Social housing landlords have been subject to strict timeframes for investigating and addressing damp and mould since October 2025. The private sector extension is expected around 2030, though the framework exists to bring this forward.
The Act establishes the Private Rented Sector Ombudsman, expected to be operational by 2028. All private landlords will be required to register with the Ombudsman, who will handle tenant complaints including those about property condition. Ombudsman determinations will be binding and published.
The Act strengthens the Decent Homes Standard framework for the private sector. Currently applying only to social housing, the Decent Homes Standard will be extended to private rentals, requiring properties to meet defined condition standards including freedom from Category 1 hazards under the Housing Health and Safety Rating System (HHSRS), which includes damp and mould.
Implementation Timeline
The Act's provisions come into force in phases:
Section 21 abolition and tenancy reforms: 1 May 2026
Enhanced council enforcement powers: Already in effect from 27 December 2025
Private Rented Sector Ombudsman: Expected 2028
Decent Homes Standard extension: Expected 2030
Awaab's Law extension: Expected 2030, potentially earlier
Each phase adds requirements and accountability. Landlords who wait until each deadline to comply will face increasing pressure. Those who prepare now will be better positioned.
2. The End of Section 21: Why Damp Matters More Now
The abolition of Section 21 fundamentally changes the dynamics around tenant complaints about property condition. Understanding this shift explains why damp compliance has become more urgent.
The Previous Dynamic
Under Section 21, landlords could serve two months' notice ending any assured shorthold tenancy without giving reasons. This power, whether used or not, affected how tenants and landlords interacted about property problems.
Research consistently showed that tenants who complained about property conditions faced elevated risk of eviction. A Shelter study found that 46% of renters who complained about poor conditions experienced retaliatory eviction, rent increases, or eviction threats. Citizens Advice found that tenants who complained were significantly more likely to receive Section 21 notices than those who did not.
This created a chilling effect. Many tenants lived with damp, mould, and other problems rather than risk complaining. The true scale of property condition issues in the private rented sector was suppressed by tenant fear. Government statistics likely understated problems because tenants did not report them.
For landlords, this dynamic meant they could avoid dealing with property problems. If a tenant complained too persistently, Section 21 provided an exit. Properties with underlying issues could be let, re-let, and let again without the problems ever being properly addressed.
The New Dynamic
Without Section 21, this escape route closes. Landlords cannot evict tenants for complaining. There is no ground for possession that allows removal of a tenant who raises legitimate concerns about property condition.
Tenants will complain. The backlog of suppressed complaints from tenants who previously stayed silent will emerge. Problems that have been tolerated for years will be reported. Landlords should expect increased tenant engagement about property issues.
Attempting to evict complaining tenants will fail and backfire. Using Section 8 grounds pretextually to remove a tenant who complained would fail at tribunal and potentially expose the landlord to claims for harassment or unlawful eviction. Courts will scrutinise possession claims from landlords whose tenants have raised condition complaints.
The Practical Consequence
The practical consequence is straightforward: damp problems in rental properties must be addressed. The option of waiting for the tenancy to end and finding a less demanding tenant has gone. The tenancy does not end unless the landlord has legitimate grounds and the tenant does not simply leave.
This means:
Properties with existing damp problems need those problems resolved, not managed or tolerated.
Properties with conditions conducive to damp (poor ventilation, cold walls, maintenance backlogs) need those conditions improved before problems develop.
Responsive systems for handling tenant reports need to be in place before reports arrive.
The era of avoiding damp problems through tenant management is over. The era of actually fixing properties has begun.
3. The Decent Homes Standard: What Is Coming
The Decent Homes Standard currently applies to social housing. The Renters' Rights Act establishes the framework for extending it to the private rented sector. Understanding what the standard requires helps landlords prepare.
What the Decent Homes Standard Requires
A decent home must meet four criteria:
It must meet the current statutory minimum standard for housing. Currently this means being free of Category 1 hazards under the Housing Health and Safety Rating System. Damp and mould can constitute Category 1 hazards when they create serious health risks.
It must be in a reasonable state of repair. Key building components (roof, walls, windows, heating, electrical systems) must be in acceptable condition. Components nearing the end of their life should be programmed for replacement.
It must have reasonably modern facilities and services. Kitchens and bathrooms should not be too old or in poor condition. The definition of reasonably modern evolves over time.
It must provide a reasonable degree of thermal comfort. Effective insulation and efficient heating must be present. Properties should be capable of being heated adequately at reasonable cost.
How Damp Relates to Decent Homes
Damp and mould relate to the Decent Homes Standard in multiple ways.
Category 1 hazards: Severe damp or mould creating serious health risk constitutes a Category 1 hazard, failing the first criterion. Even moderate damp affecting vulnerable occupants may trigger this threshold.
Repair condition: Failed pointing, defective roofing, blocked gutters, and other maintenance failures causing penetrating damp indicate failure to maintain reasonable repair. Properties with ongoing water ingress from maintenance defects fail the second criterion.
Thermal comfort: Properties that cannot be adequately heated, or where heating is ineffective due to thermal defects, fail the fourth criterion. Cold walls causing condensation indicate thermal comfort failures.
Implementation Timeline
The Decent Homes Standard extension to private rentals is expected around 2030, though exact timing will be confirmed by secondary legislation. The government has indicated a phased approach, likely requiring compliance at new tenancies first, then extending to all tenancies.
Consultation on implementation details is expected before the standard comes into force. This will clarify exactly how the standard applies, what assessment is required, and what enforcement mechanisms exist.
Preparing Now
Landlords should not wait until 2030 to consider Decent Homes compliance. The standard provides a useful framework for property assessment now.
Reviewing properties against Decent Homes criteria identifies weaknesses. Properties with Category 1 hazards need immediate attention regardless of Decent Homes timing, because these already breach existing law. Properties with repair backlogs, thermal deficiencies, or dated facilities need programmed improvement.
Addressing issues now spreads costs over time. Waiting until mandatory compliance creates deadline pressure and potentially higher costs. Planned improvement programmes are more manageable than forced compliance.
4. Awaab's Law Extension: Timeframes for Private Landlords
Awaab's Law, named after Awaab Ishak who died aged two from mould exposure in social housing, establishes strict timeframes for responding to damp and mould reports. Currently applying to social housing, its extension to the private sector is provided for in the Renters' Rights Act.
What Awaab's Law Requires (Social Housing)
Since 1 October 2025, social housing landlords must:
Investigate reported damp and mould within 14 calendar days of becoming aware of the issue.
Provide a written summary of findings within 7 calendar days after completing the investigation.
Begin repairs within 7 calendar days after the written summary for hazards posing significant risk to health or safety.
Respond within 24 hours for emergency hazards posing imminent risk of serious harm.
Offer alternative accommodation if the property cannot be made safe within required timeframes.
These timeframes are strict and run from when the landlord becomes aware, not from when they acknowledge or accept the report. Knowledge of the issue triggers the clock.
How Extension to Private Sector Will Work
The Renters' Rights Act establishes the framework for extending Awaab's Law to private landlords. Implementation requires secondary legislation setting out specific requirements.
The extension is expected around 2030, coinciding with Decent Homes Standard implementation. However, the framework allows government to bring this forward if deemed necessary. Severe cases or perceived inadequate progress could accelerate the timeline.
The exact timeframes for private landlords may differ from social housing requirements. Consultation will determine appropriate periods, potentially allowing slightly longer timescales given the different resources available to private landlords compared to housing associations.
What This Means for London Landlords
Private landlords should anticipate:
Mandatory response timeframes for damp and mould reports, likely measured in days or weeks rather than open ended.
Written investigation and response requirements, creating documentation obligations.
Escalation requirements for serious hazards, including potentially offering alternative accommodation.
Penalties for non-compliance, likely including civil penalties and potentially rent repayment orders.
The principle that blaming tenant lifestyle without proper investigation is unacceptable will apply to private landlords as it now applies to social housing. Awaab's Law specifically addresses the practice of dismissing damp complaints as lifestyle issues. Private landlords will not be able to rely on this defence without substantive investigation.
Preparing for Awaab's Law
Landlords should establish practices now that will meet future Awaab's Law requirements:
Create clear reporting channels so tenants can report damp and mould easily and so reports are recorded with timestamps.
Establish investigation protocols defining how reports will be assessed, by whom, and within what timeframes.
Build relationships with contractors and surveyors who can respond quickly when investigation or remediation is needed.
Develop documentation templates for written summaries and response records.
Properties with existing damp issues should be addressed now, before Awaab's Law applies. Being in compliance from day one is far better than scrambling to address problems under mandatory timeframes.
5. The New Ombudsman: Another Layer of Accountability
The Private Rented Sector Ombudsman, established by the Renters' Rights Act, creates new accountability for private landlords. Understanding how this will work helps landlords prepare.
How the Ombudsman Will Work
All private landlords will be required to register with the Ombudsman. This is not optional. Failure to register will itself be an offence.
Tenants will be able to complain to the Ombudsman about landlord conduct, including failures to address property condition issues. The Ombudsman will investigate complaints, make determinations, and require remedies.
Ombudsman determinations will be binding on landlords. Unlike current redress through courts (which is slow, expensive, and rarely used), Ombudsman processes will be accessible, quick, and free for tenants.
Determinations will be published. Landlords found to have failed will have this publicly recorded. Patterns of complaints will be visible. Reputational consequences will follow poor practice.
What Tenants Will Complain About
The Ombudsman will handle complaints about:
Failure to carry out repairs, including damp and mould remediation
Delays in responding to reported issues
Poor quality of repair works
Failure to address ongoing problems
Disputes about whether issues are landlord or tenant responsibility
Communication failures and poor complaint handling
Damp and mould complaints will feature prominently. These are among the most common property condition issues and generate significant tenant dissatisfaction. The Ombudsman will deal with large numbers of damp related complaints.
Expected Timeline and Operation
The Ombudsman is expected to be operational by 2028. Government will establish or designate the Ombudsman body, set complaint handling procedures, and define remedy powers.
The Housing Ombudsman for social housing provides a model. That Ombudsman handles thousands of complaints annually, publishes determinations, and has significantly influenced social housing practice. The Private Rented Sector Ombudsman will likely operate similarly.
Implications for Landlords
The Ombudsman creates accountability that currently does not exist. Currently, tenants with complaints must pursue county court claims, which are slow, complex, and expensive. Few tenants pursue formal legal action. The Ombudsman removes these barriers.
Landlords should expect:
More complaints. Easy access means tenants will complain who currently do not.
Formal scrutiny. Ombudsman investigation examines records, correspondence, and actions. Poor documentation works against landlords.
Public accountability. Published determinations affect reputation. Letting agents and tenants will check records.
Binding remedies. Compensation, required actions, and other remedies will be enforceable.
The time to improve practice is before the Ombudsman is operational, not after adverse determinations accumulate.
6. Enhanced Enforcement Powers for Councils
Local authority enforcement powers have been strengthened, with enhanced provisions coming into force from 27 December 2025. These powers affect landlords now, not in future phases.
Current Enforcement Framework
Councils already have powers to address housing conditions under the Housing Act 2004. Environmental health officers can inspect properties, assess hazards using the Housing Health and Safety Rating System (HHSRS), and take enforcement action.
Enforcement actions include:
Improvement notices requiring specific works within specified timeframes
Prohibition orders preventing use of properties until hazards are addressed
Hazard awareness notices for less serious hazards
Emergency remedial action for imminent risks
Civil penalties as an alternative to prosecution
What Has Changed
The Renters' Rights Act and associated regulations enhance these powers:
Civil penalties have increased. Maximum penalties of £30,000 per offence can be imposed. For serious or repeat offenders, unlimited fines on prosecution remain available.
Councils have been given additional resources and direction to prioritise housing enforcement. Government has emphasised that enforcement should increase, with damp and mould as priority areas.
The link between enforcement action and rent repayment orders has been strengthened. Tenants can apply for rent repayment where landlords have committed certain offences, with maximum awards increased from 12 to 24 months' rent.
Council Enforcement in Practice
London councils are expanding housing enforcement capacity. Additional environmental health officers are being recruited. Proactive inspection programmes are being developed. The backlog of reactive complaints is being addressed.
Priority areas for enforcement include:
Properties where tenants have complained about damp and mould
HMOs (houses in multiple occupation) where multiple tenants are affected
Properties with repeat complaints or known problem landlords
Properties where serious hazards are suspected
Awaab's Law and associated publicity have increased council focus on damp and mould specifically. Councils are under political pressure to demonstrate action on housing conditions. Enforcement statistics are publicly reported.
Practical Implications
Landlords should expect:
More inspections. Councils are inspecting more properties, both reactively (following tenant complaints) and proactively (targeted programmes).
Quicker enforcement action. Where hazards are identified, councils are moving more quickly to formal enforcement.
Higher penalties. Civil penalties are being used at higher levels than previously. £5,000 to £15,000 penalties for housing offences are increasingly common.
Less tolerance for delay. Improvement notice timescales are being set tightly. Extensions are harder to obtain.
Properties with damp issues that have not been addressed are enforcement targets. Being subject to council enforcement action is expensive, stressful, and creates records that affect future dealings.
7. Rent Repayment Orders: The Financial Exposure
Rent repayment orders (RROs) allow tenants to recover rent paid during periods when landlords committed certain housing offences. The Renters' Rights Act extends RRO scope and increases maximum awards.
How Rent Repayment Orders Work
Tenants can apply to the First-tier Tribunal for an RRO where a landlord has committed a relevant offence. Relevant offences include:
Failure to comply with an improvement notice (common for unaddressed damp)
Failure to comply with a prohibition order
Using violence to secure entry
Illegal eviction or harassment
Certain HMO offences
Breach of banning order
The tribunal considers the offence, the landlord's conduct, the tenant's circumstances, and other factors. It can order repayment of rent for a period up to the maximum.
Extended Maximum Awards
The Renters' Rights Act increases the maximum RRO period from 12 months to 24 months. For a London property with rent of £1,500 per month, this means potential exposure of £36,000. For higher rent properties, exposure is correspondingly higher.
Awards need not be the full 24 months. Tribunals consider what is appropriate in the circumstances. But the extended maximum creates significantly greater financial exposure than previously.
How Damp Issues Lead to RROs
The typical pathway from damp to RRO involves:
Tenant reports damp or mould to landlord. Landlord fails to address adequately.
Tenant complains to council. Environmental health inspects and identifies Category 1 hazard.
Council serves improvement notice requiring works within specified period.
Landlord fails to comply with improvement notice (either not doing works or not completing within required time).
Non-compliance with improvement notice is a criminal offence. Tenant applies for RRO based on this offence.
Tribunal awards rent repayment for period of non-compliance, up to 24 months.
Each step in this pathway is avoidable. Addressing the problem when first reported prevents escalation. Complying with improvement notices, while stressful, prevents the criminal offence that triggers RRO eligibility.
Compound Financial Impact
RROs are not the only financial consequence of non-compliance. A landlord who fails to address damp adequately may face:
RRO: Up to 24 months' rent
Civil penalty: Up to £30,000
Remediation costs: Whatever works are required, often at premium due to urgency
Compensation claims: Tenant claims for damaged belongings, health impacts, distress
Legal costs: Defending tribunal proceedings, potentially multiple proceedings
The compound impact can exceed the property's annual rental value many times over. Properties that were marginally profitable become significant losses. The financial case for compliance is overwhelming.
8. What Constitutes Compliance Today
While future requirements are coming, landlords must comply with existing law now. Understanding current requirements establishes the baseline for compliance.
The Fitness for Human Habitation Standard
Since March 2019, all tenancies include an implied covenant that the property is fit for human habitation at the start of the tenancy and remains so throughout. This applies automatically; it does not need to be written into the tenancy agreement.
Fitness for habitation is assessed against factors including:
Freedom from damp
Adequate heating
Adequate ventilation
Freedom from infestation
Structural stability
Natural and artificial lighting
Water supply and drainage
A property with significant damp or mould problems likely breaches the fitness for habitation standard. Tenants can take direct legal action for breach without involving the council.
HHSRS Category 1 Hazards
The Housing Health and Safety Rating System assesses hazards in properties. Category 1 hazards are those posing serious risk to health or safety. Category 2 hazards are less serious but still relevant.
Damp and mould can constitute Category 1 hazards where:
The damp or mould is extensive
Vulnerable occupants (children, elderly, those with respiratory conditions) are present
Health effects are occurring or likely
The property cannot be adequately heated or ventilated
Council identification of a Category 1 hazard triggers mandatory enforcement action. The council must take action; it does not have discretion to ignore Category 1 hazards.
Repairing Obligations
Section 11 of the Landlord and Tenant Act 1985 implies repairing obligations into most residential tenancies. Landlords must:
Keep the structure and exterior in repair (including walls, roof, windows, external doors)
Keep installations for water, gas, electricity, sanitation, and heating in repair and working order
This means landlords must repair external defects causing penetrating damp, maintain heating systems that prevent condensation, and address structural issues causing moisture problems.
Compliance Checklist
Current compliance requires:
Properties free from significant damp and mould at tenancy start
Responsive systems to address damp reports during tenancies
External fabric maintained to prevent water ingress
Heating systems functional and adequate
Ventilation provision allowing moisture management
No Category 1 hazards present
Properties meeting these requirements comply with current law. Those falling short face enforcement and tenant claims under existing provisions, regardless of future changes.
9. Preparing for Future Requirements
Beyond current compliance, landlords should prepare for requirements coming in 2028 and 2030. Preparation now avoids crisis management later.
Portfolio Assessment
Review your entire portfolio for damp risk. Do not wait for tenant complaints to identify problems.
Inspection of each property should assess:
Current damp or mould presence (check thoroughly including behind furniture, inside cupboards, in less used rooms)
Risk factors for future problems (poor ventilation, thermal deficiencies, maintenance backlogs)
Compliance with fitness for habitation and freedom from Category 1 hazards
Building condition including external fabric, roof, windows, and rainwater goods
Historical issues from previous tenancies or your own records
This assessment identifies properties needing immediate attention and those needing preventive improvement.
Prioritised Remediation Programme
Assessment findings should generate a prioritised action plan.
Immediate priorities: Properties with existing damp or mould, properties likely to have Category 1 hazards, properties where tenants have reported issues.
Near term priorities: Properties with conditions conducive to damp (poor ventilation, thermal issues) but not currently showing problems.
Programmed improvements: Properties where upgrades would reduce future risk (ventilation installation, heating improvements, thermal upgrades).
Spreading work over time manages costs and contractor availability. Doing everything at once is neither necessary nor practical. But having a plan and executing it demonstrates proactive management.
Systems and Processes
Establish systems that will meet future requirements:
Reporting systems: How do tenants report issues? Are reports timestamped and logged? Can you demonstrate when you became aware of problems?
Response protocols: What happens when a report arrives? Who investigates, within what timeframe, following what process?
Documentation: How is investigation recorded? How are findings communicated to tenants? How is remediation documented?
Contractor relationships: Do you have reliable contractors who can respond quickly? Can you get damp surveys within days rather than weeks?
These systems should be operating now, not designed hastily when Awaab's Law extends. Well functioning systems demonstrate good practice and protect against complaints.
Budget and Reserves
Future compliance will require expenditure. Reserving funds for compliance-related works protects against financial pressure when requirements come into force.
Consider:
Anticipated remediation costs for identified issues
Contingency for issues not yet identified
Potential Ombudsman compensation awards
Potential costs of alternative accommodation if ever required
Possible civil penalties if compliance lapses
Properties without adequate margin for compliance costs may not be viable as rental investments. Assessing financial viability now allows planned exits where appropriate.
10. The Investigation and Response Protocol
When tenants report damp or mould, how you respond determines whether the situation resolves satisfactorily or escalates to enforcement and claims. A clear protocol ensures consistent, appropriate response.
Initial Response (Within 24 to 48 Hours)
Acknowledge the report promptly. Thank the tenant for reporting. Confirm you will investigate. Provide a timeframe for the next step.
This acknowledgement should be in writing (email or letter) and should be retained. It documents when you became aware and that you responded.
If the report indicates emergency conditions (severe water ingress, dangerous structural concerns, vulnerable occupants with serious symptoms), arrange immediate inspection and consider whether emergency measures are needed.
Investigation (Within 7 to 14 Days)
Inspect the property to assess the reported issue. This might be done by you personally, by your agent, or by a professional surveyor depending on the nature and apparent severity of the issue.
Investigation should determine:
What is the extent and severity of the damp or mould?
What type of damp is present (condensation, penetrating, rising)?
What is the likely cause?
What remediation is required?
Are there any immediate health or safety concerns?
For straightforward condensation issues, visual inspection and discussion with the tenant may be adequate. For more complex or severe issues, professional damp survey provides accurate diagnosis.
Written Summary
Following investigation, provide the tenant with a written summary of findings. This should explain:
What was found during investigation
What the likely cause is
What action you will take to address it
Timeframe for that action
Any steps the tenant should take (such as ventilation practices for condensation)
This written summary mirrors Awaab's Law requirements for social housing and establishes good practice that will be required when the law extends.
Remediation
Carry out required remediation within the timeframe you have committed to. For simple issues, this might be days. For complex issues requiring contractors, it might be weeks, but should not be indefinitely deferred.
Keep the tenant informed of progress. If timeframes slip, explain why and provide revised estimates.
Document all works carried out, including contractor invoices, photographs of completed work, and confirmation to the tenant.
Follow Up
After remediation, follow up to confirm the issue is resolved. Check that the tenant is satisfied. Revisit if problems recur.
Unresolved or recurring issues damage trust and can still escalate to complaints. Following up demonstrates that you take the issue seriously and want it properly resolved.
11. Documentation That Protects You
Documentation serves multiple purposes: it guides your actions, demonstrates compliance, and protects against claims and complaints. Good documentation is essential for landlords in the new regulatory environment.
What to Document
Tenant reports: Every report of damp or any property issue should be logged with date, time, tenant name, and details of what was reported. If reports come verbally, follow up in writing confirming what was reported.
Inspections and investigations: Record when inspections occurred, who conducted them, what was found, and conclusions reached. Photographs provide evidence of conditions at the time.
Written communications: All communications with tenants about damp issues should be in writing or confirmed in writing. Email provides automatic dating and a paper trail.
Works carried out: Document what works were done, when, by whom, and at what cost. Retain contractor invoices. Photograph completed works.
Maintenance history: Maintain records of routine maintenance including boiler servicing, gutter clearing, and similar preventive work. This demonstrates proactive property management.
Why Documentation Matters
In disputes, documentation determines outcomes.
Council enforcement: When environmental health investigates, you will be asked about the history of the issue. Documented prompt response demonstrates responsible landlording. Absence of documentation suggests neglect.
Tribunal proceedings: If tenants claim compensation or RROs, the tribunal examines what happened and when. Contemporaneous documentation is more credible than after-the-fact explanations.
Ombudsman complaints: The Ombudsman will request records of reports, responses, and actions. Landlords who cannot demonstrate reasonable response to complaints will receive adverse findings.
Insurance claims: If you need to claim on insurance for remediation or legal costs, insurers require documentation of what happened and what you did about it.
Documentation Systems
Systems for documentation need not be complex. Options include:
Digital folders: A folder for each property containing scanned correspondence, photographs, contractor invoices, and a log of key events.
Property management software: Software specifically for landlords that includes issue tracking, communication logging, and document storage.
Email trails: Using email for all tenant communication automatically creates dated records.
Physical files: Traditional paper files work if properly maintained, though digital backup is advisable.
The specific system matters less than consistency. Whatever system you use, use it for every property and every issue.
12. When to Commission Professional Assessment
Professional damp surveys are not needed for every report, but certain situations warrant expert assessment. Knowing when to commission surveys ensures appropriate response.
Situations Requiring Professional Assessment
Complex or unclear causation: If you cannot determine whether the issue is condensation, penetrating damp, or rising damp, professional diagnosis ensures appropriate treatment.
Significant extent: Extensive damp affecting multiple rooms or large areas requires professional assessment to understand the full scope and identify all causes.
Recurring problems: Issues that return after apparently adequate treatment suggest the underlying cause was not addressed. Professional investigation identifies what was missed.
Structural concerns: Any suspicion that damp may be affecting structural elements (timber decay, masonry deterioration) requires expert evaluation.
Tenant health issues: Where tenants report health symptoms potentially related to damp or mould, professional assessment documents conditions and guides effective response.
Dispute situations: If tenants dispute your assessment or you disagree about responsibility, professional survey provides independent expert opinion.
What Professional Survey Provides
A professional damp survey from a qualified surveyor provides:
Accurate diagnosis of damp type and cause, using moisture measurement, thermal imaging, and expert interpretation.
Assessment of extent, including concealed damp not apparent from visual inspection.
Identification of required remediation, specified in sufficient detail to obtain contractor quotes.
Documentation supporting your response, demonstrating you took the issue seriously and obtained expert advice.
Evidence for disputes, should the matter proceed to enforcement, tribunal, or Ombudsman.
The Cost Benefit Calculation
Professional surveys typically cost £200 to £500. This seems significant for routine issues but is trivial compared to:
Cost of wrong treatment due to misdiagnosis
Cost of repeat treatments when the actual cause is not addressed
Civil penalties for non-compliance (up to £30,000)
Rent repayment orders (up to 24 months' rent)
Compensation awards for tenant claims
Legal costs of defending proceedings
The survey that confirms a problem is minor, or that guides effective remediation for a serious problem, pays for itself many times over.
Choosing a Surveyor
Select surveyors who:
Are independent of treatment companies. Surveyors employed by or receiving referral fees from treatment companies have conflicts of interest.
Hold relevant qualifications. RICS membership or CSRT (Certified Surveyor in Remedial Treatment) qualification indicates competence.
Have experience with rental properties. Understanding the landlord-tenant context helps provide relevant advice.
Provide clear written reports. Reports should explain findings in terms you can understand and share with tenants.
Henderson Wood provides independent damp surveys across London, helping landlords understand issues and document appropriate response.
13. FAQs
Section 21 is still available until May 2026. Should I use it now for properties with damp issues?
Using Section 21 to remove tenants who have complained about damp, even before abolition, is legally risky and ethically problematic. Existing retaliatory eviction protections (under the Deregulation Act 2015) may already render such notices invalid where tenants have complained to councils. Attempting retaliatory eviction can result in the notice being set aside and potential claims against you. Address the damp problem rather than removing the tenant.
If Awaab's Law does not apply to private landlords until 2030, why should I follow those timeframes now?
Current law already requires fitness for habitation and freedom from Category 1 hazards. Enforcement is increasing now, not waiting until 2030. The Ombudsman will be operational from 2028. Establishing good practices now is easier than changing under pressure later. And following Awaab's Law timeframes demonstrates that you respond appropriately, which protects you in any current disputes.
My tenant is causing the damp through lifestyle. How do I defend myself?
You may not simply blame the tenant without investigation. Even where tenant behaviour contributes (drying laundry indoors, not ventilating), you must demonstrate the property is capable of managing normal household moisture with reasonable behaviour. Investigate properly. If genuine lifestyle factors contribute, provide written guidance to the tenant. If the property has inadequate ventilation or heating making normal living impossible without damp, that is your problem to fix.
Can I increase rent to cover the cost of damp remediation works?
The Renters' Rights Act allows rent increases but with constraints. Rent can only be increased once per year, with notice, and tenants can challenge increases at tribunal if they exceed market rate. You cannot impose specific charges for repair works. Remediation is part of your repairing obligations, not an extra service you can charge for.
What happens if my tenant complains to the new Ombudsman?
When the Ombudsman is operational (expected 2028), tenant complaints will be investigated. You will be asked to provide records and respond to allegations. The Ombudsman will determine whether you acted appropriately. If not, remedies may include compensation, required actions, and published findings. The process is quicker and more accessible than court. Take complaints seriously and respond properly to avoid adverse determinations.
I have multiple properties. How do I prioritise compliance work?
Prioritise by risk. Properties with existing damp or mould are immediate priorities. Properties with vulnerable tenants (children, elderly, health conditions) are higher priority even for moderate issues. Properties with previous complaints or enforcement history need attention. Properties with conditions conducive to problems but currently acceptable are lower priority but should be programmed for improvement. Document your prioritisation and your plan.
14. Conclusion
The Renters' Rights Act 2025 marks a fundamental shift in how the private rented sector operates. The end of Section 21, the coming Ombudsman, the extension of Decent Homes and Awaab's Law, and strengthened enforcement together create a regulatory environment where property condition matters far more than before.
For landlords with damp issues in their properties, the message is clear: these problems must be addressed, not managed through tenant turnover. The option of waiting out complaining tenants has gone. The regulatory framework for holding landlords accountable is strengthening. The financial penalties for non-compliance are increasing.
This is not a future concern. Enhanced enforcement powers are in effect now. Fitness for habitation applies now. Council capacity is expanding now. The tenants who have suppressed complaints for fear of eviction will begin speaking up as Section 21 abolition approaches.
Compliance requires:
Properties free from significant damp and mould
Responsive systems for handling tenant reports
Prompt investigation when issues are reported
Effective remediation within reasonable timeframes
Documentation demonstrating appropriate response
These requirements are not onerous for landlords who maintain properties properly. They represent normal good practice that many already follow. For those who have relied on tenant fear and Section 21 availability to avoid addressing problems, adjustment is needed.
The financial case for compliance is compelling. The costs of non-compliance, civil penalties, rent repayment orders, compensation, remediation under pressure, legal costs, can easily exceed years of rental income. The costs of compliance, proper maintenance, reasonable responsive systems, occasional professional surveys, are modest by comparison.
Henderson Wood provides damp surveys for rental properties across London, helping landlords understand property conditions, respond appropriately to tenant reports, and document compliance. Our independent surveys provide accurate diagnosis and clear recommendations, supporting landlords in meeting their obligations and protecting their investments.
The regulatory environment has changed. Landlord practice must change with it. The landlords who adapt will continue to operate successfully. Those who do not will find the new environment increasingly difficult.