Public Health Act 1936
The Public Health Act 1936 created legal powers by which a local authority, in the absence of a landlord dealing with rubbish or repairs at property, could step in and carry out the works themselves and subsequently forward an invoice to the landlord which they would be liable to pay.
This law was tested and upheld in the case of Bristol CC v. Virgin and others (1928)”
This may be an unusual action by a local authority but it exists in law nevertheless and local authorities could use this legal mechanism more frequently in the future.
For example, it may be the case that the boiler is broken in a property and the authority has served notices which a landlord has ignored on the basis that it would cost circa £1200 to repair. Well, in this scenario an authority could lawfully do it at their expense which would probably be far more expensive than the landlord doing it themselves and forward a bill of £2500 to the landlord to include ancillary administration expenses.
The full Public Health Act 1936 can downloaded Here
You can read more about Repairing Obligations Here.