Southwark LBC v Mills [2001] 1 AC 1

Local authority tenants complained that they could hear everyday activity in neighbouring flats because the buildings lacked adequate sound insulation. The neighbours were generally behaving normally; the problem was the structure through which ordinary domestic sounds travelled. The tenants sought to require their landlords to install soundproofing. Their agreements did not expressly promise that improvement. The joined appeals involved different procedural histories but raised common questions about the covenant for quiet enjoyment and nuisance. The House of Lords had to decide whether those principles obliged the landlords to remedy an inherent condition present when the tenancies began.

Did the covenant for quiet enjoyment or nuisance principles require the landlords to install sound insulation where ordinary domestic noise was transmitted through the buildings’ existing structure?

The House of Lords dismissed the tenants’ appeals. The covenant for quiet enjoyment protected the tenants against relevant interference, but did not amount to a promise to improve the physical condition in which the flats had been let. The absence of soundproofing was an inherent feature, rather than disrepair which could be remedied by restoring an earlier condition. The neighbours’ normal residential activity did not establish the nuisance alleged on these facts, so the landlords could not be liable merely for authorising that ordinary occupation. The decision addressed the common-law and contractual claims then advanced; it did not deny the possibility of additional obligations imposed by legislation.

A covenant for quiet enjoyment does not itself require a landlord to improve an inherent structural inadequacy present when premises were let. On these facts, ordinary neighbouring residential activity transmitted through poor insulation did not establish the claimed nuisance or a duty to install soundproofing.

The distinction between repair and improvement is central, as is the difference between quiet enjoyment and a guarantee of silence. The historical account must now be read alongside statutory housing duties. In England, the Homes (Fitness for Human Habitation) Act 2018 inserted section 9A into the Landlord and Tenant Act 1985 for qualifying dwellings. A modern answer therefore cannot simply assert that tenants accept every defect as found; the applicable statute, territory and tenancy require separate examination.