An investigation into Lewisham LBC has exposed widespread failings in how the authority manages housing repairs, complaints and properties.
The probe by the Housing Ombudsman Service found serious issues in 92% of cases reviewed, including poor communication, weak contractor oversight, and major delays tackling hazards such as damp and mould.
Nearly a quarter of Lewisham's homes fell below the Decent Homes Standard as of September 2024 – more than double London's average.
The council has since surveyed most of its stock and introduced reforms to improve repairs, data systems and resident engagement.
Housing Ombudsman Richard Blakeway said: ‘The landlord is on a long road towards improvement. Its leadership realises the areas it needs to focus on and spoke openly about them.'
A council spokesperson said: ‘We acknowledge the significant impact that failures in our housing services have had on residents, particularly those affected by delays, poor communication and unresolved repairs.'