What Is a Housing Disrepair Survey — and Why It Can Make or Break Your Case

Housing disrepair claims are built on evidence. 

Not assumptions. 
Not outdated narratives. 
And certainly not simplistic explanations that place responsibility in the wrong place. 

At the centre of that evidence sits the housing disrepair survey — a structured, expert-led inspection that can determine whether a case succeeds, settles, or falls apart. 

Understanding what a survey involves — and how modern standards now treat issues such as damp and mould — is essential for both claimants and legal professionals. 

So What's Involved? 

A housing disrepair survey is an inspection carried out by an independent expert surveyor to assess the condition of a residential property and identify defects that may give rise to a legal claim. 

In technical terms, it involves: 

• A systematic assessment of the building fabric and services 
• Identification of defects and breaches of landlord obligations 
• A detailed analysis of causation 
• A schedule of remedial works 
• Consideration of health and habitability impacts 

In simple terms, it answers: 

1. What’s wrong with the property? 
2. Why is it happening? 
3. What needs to be done to fix it? 

The Legal Context: More Than Just Defects 

Most housing disrepair claims stem from: 

• Section 11 of the Landlord and Tenant Act 1985 
• The Homes (Fitness for Human Habitation) Act 2018 

These place clear obligations on landlords to: 

• Maintain the structure and exterior 
• Ensure installations (heating, water, sanitation) function properly 
• Ensure the home is safe and fit for you, personally, to live in 

Crucially, modern interpretation — reinforced by the Housing Ombudsman — recognises that: 

Issues such as damp and mould are not simply caused by tenant behaviour, but are often the result of how a property performs as a whole. 

This includes: 

• Insulation levels 
• Ventilation provision 
• Heating design 
• The impact of retrofit measures such as double glazing and increased insulation 

Damp and Mould: A Shift in Understanding 

One of the most significant developments in housing disrepair is the move away from attributing mould to so-called “lifestyle factors.” 

Historically, tenants were often blamed for: 

• Drying clothes indoors 
• Cooking practices 
• Not opening windows 

However, this approach is now widely considered outdated and insufficient. 

The Current Position 

The Housing Ombudsman has made clear: 

• Landlords have a responsibility to manage moisture within a property 
• Properties must be capable of handling normal, everyday occupancy 
• Retrofit works — such as insulation upgrades and sealed double glazing — can increase moisture retention if not properly balanced with ventilation 

What This Means in Practice 

A competent surveyor must now assess: 

• Whether the property has adequate ventilation systems 
• Whether insulation has created cold bridging or trapped moisture 
• Whether the building design contributes to condensation risk 
• Whether the property can cope with ordinary living conditions 

Put simply: 

If a property cannot manage moisture generated through normal use, this is likely to be a property issue — not a tenant failing. 

What Does a Proper Disrepair Survey Include? 

A high-quality disrepair survey remains structured, but with a more holistic and building-performance-led approach. 

1. Full Property Inspection 

The surveyor will assess: 

• Walls, ceilings, floors 
• Windows and doors (including modern sealed units) 
• The external envelope 
• Heating systems 
• Plumbing and drainage 
• Ventilation provision 

The aim is to understand how the property functions as a complete system, not just isolated defects. 

2. Moisture, Damp and Mould Assessment 

This is now one of the most technically sensitive parts of the survey. 

A robust inspection will include: 

• Moisture profiling using appropriate equipment 
• Assessment of ventilation pathways and airflow 
• Identification of:  
• Surface condensation 
• Interstitial condensation 
• Penetrating damp 
• Consideration of how retrofit measures have altered the building 

Critically, conclusions must be based on building performance, not assumptions about occupant behaviour. 

3. Causation Analysis 

Causation remains the cornerstone of expert evidence — but expectations are higher. 

Surveyors must now explain: 

• How moisture is being generated and retained 
• Whether the building allows for adequate drying and ventilation 
• How design, materials, and upgrades contribute to conditions 

For example: 

• Is mould forming due to inadequate extraction in kitchens and bathrooms? 
• Has insulation created cold spots where condensation forms? 
• Have sealed windows reduced natural ventilation? 

This level of analysis is what separates a litigation-grade report from a basic inspection. 

4. Schedule of proposed works "Scott Schedule"

The survey will include a clear and practical schedule of remedial works, such as: 

• Installation or upgrade of mechanical ventilation 
• Insulation corrections 
• Repairs to internal or external defects causing water ingress 
• Heating system improvements / repairs / adjustments

This schedule is key in driving resolution and supporting settlement. 

5. Expert Witness Report 

Together, these findings are formalised into a CPR Part 35 compliant report. 

This means: 

• The surveyor acts independently 
• Conclusions are evidence-based 
• The report is suitable for scrutiny in court 

Most importantly, the report must reflect current housing standards and regulatory expectations, including the Ombudsman’s position. 

Why Survey Quality Is More Important Than Ever 

As scrutiny in housing disrepair increases, weak or outdated reports are being challenged more aggressively. 

Common issues now include: 

• Outdated references to “tenant lifestyle” 
• Failure to consider building upgrades and their consequences 
• Inadequate analysis of ventilation and moisture dynamics 

A poor report can: 

• Undermine a claim 
• Delay resolution 
• Reduce settlement value 

Whereas a strong report will: 

• Accurately attribute causation 
• Reflect modern legal expectations 
• Strengthen negotiation and litigation positions 

The Role of Independence 

Independence is not optional — it is fundamental. 

Even when instructed by claimant solicitors, the surveyor’s duty is to: 

• The court 
• The evidence 
• The truth of the building condition 

At Groveland Expert, this is central: 

• Conclusions are led by technical assessment 
• Reports reflect current regulatory thinking 
• Findings are fully defensible 

This ensures credibility — not just with clients, but with courts and opposing experts. 

For Claimants: What This Means for You 

If you’re experiencing damp or mould: 

• You should not assume it is your fault 
• Your home should be capable of supporting normal living conditions 
• A proper survey should identify whether the property itself is contributing 

You should expect: 

• A thorough inspection 
• Clear explanations in plain English 
• A fair and evidence-based conclusion 

For Solicitors: What to Look For Now 

Given the evolving landscape, a disrepair survey must now: 

• Reflect Ombudsman guidance 
• Avoid outdated “lifestyle” assumptions 
• Include robust building performance analysis 
• Be fully litigation-ready 

Anything less risks being challenged or discounted. 

Final Thoughts 

Housing disrepair is no longer assessed through a narrow lens. 

The focus has shifted to: 

• How buildings perform 
• How landlords manage property conditions 
• Whether homes are genuinely fit for modern occupation 

Damp and mould, in particular, must now be understood as part of a wider building and environmental system — not simply attributed to those living within it. 

In this context, the role of the disrepair survey is more important than ever. 

Because ultimately, it is the survey that defines: 

• Responsibility 
• Repair strategy 
• And the strength of the case itself