London's rental crisis has pushed residents toward property guardianship, living in vacant buildings at below-market rates. Once considered an edgy lifestyle choice, the arrangement now attracts professionals seeking affordable housing in desirable neighborhoods like Richmond-upon-Thames where guardians pay £710 monthly versus typical rents of £1,700.

The guardianship model offers significant cost savings but comes with trade-offs. Residents face temporary agreements with a month's notice, regular property inspections, and lack of exclusive rights. Guardian companies connect occupants with building owners, providing security for owners while charging licensing fees that are often 50-60% below standard London rents averaging £2,200 monthly.

The largely unregulated sector faces scrutiny as the UK housing ministry reported "very poor conditions" in many properties. Despite concerns, demand remains high with properties like repurposed retirement homes in Surbiton attracting professionals like construction executive Tim Davis who saves £400 monthly. The model represents both creative housing solution and symptom of London's broader affordability crisis.