Damp and mould: what to record and why the evidence matters

Why recording matters

Damp and mould are health matters, not cosmetic ones. Official guidance is clear that landlords should identify and address the underlying causes rather than treating visible mould in isolation. Whether the response is timely and appropriate usually turns on the quality of the record made at the first visit.

What a useful record contains

• Location — room, wall or ceiling, orientation and height
• Extent — approximate area affected, described consistently across surveys
• Type of indication — surface mould, staining, tide marks, blown plaster, condensation on glazing
• Likely category — condensation, penetrating or rising damp indicators, or a defect such as a leak, recorded as an observation rather than a diagnosis where that is all the evidence supports
• Contributing factors observed — extract fans present and working, trickle vents, heating provision and use, overcrowding indicators, blocked gutters or defective seals
• Photographs — wide shot for context plus close shots, taken to the same convention each time
• Resident report — what the resident says about onset, duration and any previous works
• Date and assessor — so timescales can be evidenced later

Observation is not diagnosis

A survey visit records what can be seen and measured on the day. Establishing the cause of persistent damp may require specialist investigation. Reports should distinguish clearly between an observation, an indication and a confirmed cause — overstating certainty creates risk for everyone.

Consistency across a portfolio

For housing providers, the value of the data comes from consistency. If every surveyor records severity and category the same way, the data can be triaged, compared and trended. If they do not, it can only be read property by property. Agree the categories and photograph conventions before mobilisation, not afterwards.

HHSRS and Awaab's Law context

Damp and mould can engage hazard assessment under the Housing Health and Safety Rating System, and social landlords have time-bound duties under Awaab's Law. Survey data supports those processes, but a survey is not itself a statutory HHSRS inspection unless it has been specifically commissioned and scoped as one.

Where D8 fits

D8 captures damp and mould observations during stock condition surveys, recorded against your template with photographs and location detail. We agree the scope with you in writing before mobilisation.

Official sources

• Understanding and addressing the health risks of damp and mould in the home (GOV.UK)
• Housing Health and Safety Rating System (HHSRS) guidance (GOV.UK)