What’s so unlawful about London’s affordable housing policy?

The High Court has declared a key policy in the mayor of London’s planning guidance on affordable housing ‘unlawful’ – but what does that mean in practice? Matthew White explains the impact of the decision In R (on the application of McCarthy and Stone Retirement Lifest yles Ltd and others) v Mayor of London (on behalf of the Greater London Authority) [2018] EWHC 1202 (Admin); [2018] PLSCS 99, Ouseley J declared that a key part of the mayor’s supplementary planning guidance, Homes for Londoners: Affordable Housing and Viability (the SPG), is unlawful. The SPG was adopted in August 2017 and sets out a